SOLAR CLUSTER P06 - Solar Projects at 07 locations of Dholka, Botad, Nadiad and Patdi ULBs.

5 Name of Work : Design, Engineering, Supply & Procurement, Erection,

Testing, Commissioning and Comprehensive

Operation & Maintenance for a Period of Five (5) years

Total 415 kw (AC) at Methi kui PS(50 KW), Dholka

Municipality; Nagar Seva Sadan(45 KW), Talav Kuva

Tank(40 KW) and Khodiyarnagar WW(50 KW) of Botad

Municipality, Raniabaug NP building (50 KW), Nadiad

Municipality, Velnath Nagar Headworks(85kW) and

Himmatpur Patiya Headworks(95 kW), Patdi

Municipality, Gujarat , GUJARAT.

7 Bidding Type : Two Bid System

8 Bid Call (Nos) :

9 Tender Currency Type : Indian Rupee (INR)

10 Joint Venture : Not Applicable

11 Rebate : Applicable

12 Bid Document Fee Payable To: : GUDC Ltd, Gandhinagar

13 Bid Security/EMD in favour of: : GUDC Ltd, Gandhinagar

14 Address of Pre-Bid Meeting : At Conference Hall, GUDC

15 Officer Inviting Bids : Vice President (P), GUDC, Gandhinagar

16 Bid Opening Authority : Vice President (P), GUDC, Gandhinagar

17 Address : GUJARAT URBAN DEVELOPMENT COMPANY LTD

Block No.1, Ground Floor, Karmayogi Bhavan,

Behind Nirman Bhavan, Sector 10/A,

Gandhinagar: 382010, Gujarat, INDIA.

18 Contact Details of Officer : Vice President (P), GUDC, (079)

Tender Doc. No. GUDC/SOLAR/2026/P06

IMPORTANT NOTE TO BIDDERS:

Timely submission of offer to GUDC: All the relevant documents as per requirement of the Tender

shall also be submitted online only. Tender Fee and EMD in sealed cover are to be received in this

office on or before the due date and time & it should be strictly submitted by RPAD / speed post in

sealed cover only. Notwithstanding with any clause, no hard copy submission except EMD & Tender

Fee shall be allowed Otherwise the offer will not be considered and no any further communication

in the matter will be entertained. Please note that no other documents including Price Bid to be

submitted in physical form.

No Tender shall be accepted in any case after due date and time of receipt of the Tender,

irrespective of delay due to postal services or any other reasons and GUDC does not assume any

responsibility for late receipt of the Tender.

1. All interested parties are requested to understand this Tender in detail in order to comply

with GUDC’s requirements including but not limited to the fees and deadlines, selection

criteria, selection methodology, scope of work, and minimum technical standards. They

shall strictly abide by ALL terms prescribed in this Tender and provide accurate information

to the best of their knowledge without misleading the Company to be considered for

participation in this Project.

2. It is mandatory for all the Bidders to submit their Financial Bid (Price Bid) and. Technical Bid

(Techno-commercial Bid) ONLINE only via e-tendering portal

3. Tender Fee and EMD shall be submitted through RPAD/ Speed Post only in two separate

envelopes. Bidders to note that Technical Bid of only those Bidders shall be opened (On-

line-tendering) who had submitted tender fees & EMD hard as well as soft copy as

mentioned in Clause No i & ii of Table (Important Amount).

4. Envelopes shall be wrapped in an outer envelope addressed to: Vice President (P); Gujarat

Urban Development Company Limited (GUDC), Block No.1, Ground Floor, Karmayogi

Bhavan, Behind Nirman Bhavan, Sector 10/A, Gandhinagar: 382010. Complete postal

address of the Bidder shall appear on all the envelopes so that it is possible to find out whose

Bid it is without opening the envelope.

Tender Doc. No. GUDC/SOLAR/2026/P06

5. Tender fee (non-refundable) will be accepted by DD drawn in favour of the “Gujarat Urban

Development Company Limited (GUDC Ltd.)” payable at Gandhinagar. Tenders submitted

without Tender Fee shall not be accepted. The envelope for Tender Fee should be super

scribed as “Tender Fee”. Cheques are not acceptable.

6. Bidder(s) have to pay total EMD of as per Clause No. ii of Table B (Important Amounts)

above. EMD shall be in the form of FDR or Bank Guarantee (BG) or DD in favour of “Gujarat

Urban Development Company Limited (GUDC Ltd.)” payable at Gandhinagar. The envelope

for EMD should be super scribed as “EMD”. Cheques are not acceptable.

7. It is mandatory for all Bidders to submit their Price Bid (Appendix 16) only through on-line

(e-tendering) mode. Price Bid submitted in physical form shall not be considered for its

opening and only on-line submitted price bid will be considered for evaluation. Bidders to

note that Price Bid (Appendix 16) of only those Bidders shall be opened (On-line-tendering)

who are found technically qualified and are found reasonably responsive to GUDC’s Tender

terms and conditions and Scope of Work.

8. Any technical/commercial query pertaining to this Tender should be referred to:

Vice President (P)

Gujarat Urban Development Company Limited (GUDC),

Block No.1, Ground Floor, Karmayogi Bhavan,

Behind Nirman Bhavan, Sector 10/A,

Gandhinagar: 382010, Gujarat, India

Email: [email protected]

9. Bidders who wish to participate in this tender will have to procure or should have legally

valid Digital Certificate (Class III) as per Information Technology Act-2000, using which they

can sign their electronic bids. Bidders can procure the same from any of the license

certifying Authority of India or can contact (n)code solutions-a division of GNFC Limited,

who are licensed Certifying Authority by Government of India at address mentioned below.

Bidder may go through the e-tendering instruction for online Bid participation through n-

procure platform for further details and guidance for participation in the tendering process

through e-tendering.

Tender Doc. No. GUDC/SOLAR/2026/P06

In case of any further information regarding online bidding or if a Bidder needs any

assistance in accessing/ submission of online bid/ clarification or if training is required for

participating in online e-reverse bidding, then the Bidder can contact the following office

for assistance or training:

(n) Procure Cell, (n) code solutions-A division of GNFC Ltd.,

403, GNFC Info tower, S.G. Road,

Bodakdev Ahmedabad – 380054 (Gujarat)

Fax: 079-26857321 / 40007533, Email: [email protected]

Bidder may visit https://www.nprocure.com/html/faq.asp for information regarding e-

tendering registration process.

10. Before online bid submission as per schedule, Bidder is required to recheck that the

uploaded scanned copies of documents by bidder are opened properly as during bid

opening, any documents not openable shall not be considered for evaluation.

11. GUDC reserves the rights to accept/reject any or all Tenders without assigning any reasons

thereof. Bidders are requested to be in touch with above-mentioned website till opening of

the Price Bid to know the latest status.

Yours faithfully,

For and behalf of Gujarat Urban Development Company Limited (GUDC), Gandhinagar.

Vice President (P)

Gujarat Urban Development Company Limited (GUDC),

Block No.1, Ground Floor, Karmayogi Bhavan,

Behind Nirman Bhavan, Sector 10/A, Gandhinagar: 382010, Gujarat, India.

--- End of Section ---

Tender Doc. No. GUDC/SOLAR/2026/P06

Document Checklist

[Note: Document Checklist shall be attached with Appendix 1 of the Technical Bid]

Sr. Document Official

1 Complete sets of Bids (original Set)

Signed Tender Documents and Amendment with sign and

official seal on every page in Cover-I

3 Demand Draft of Tender Fees

Enclosures of the Bid including the Covering Letter as per the

4 format prescribed in Appendix 1: Format for Covering Letter

5 Details of Bidder as specified in Appendix

EMD in the form of FDR OR Bank Guarantee or DD as per

6 format prescribed in Appendix18 (a): Format of Bank

Guarantee for EMD

7 Attested copy of GST Registration Certificate of Bidder.

8 Attested copy of Provident Fund Code of Bidder.

9 Attested copy of PAN Card for Bidder.

Certificate of Commencement of Business issued by the

Registrar of Companies for Bidder.

Power of Attorney by the Bidder in favour of Bidder as per

format prescribed in Appendix

12 Document as per Clause No.

Tender Doc. No. GUDC/SOLAR/2026/P06

Curriculum Vitae of Core Team Members as per the format in

Project Plan as mentioned in Appendix 5: Format for Project

Execution Plan.

A comprehensive project management schedule in the form

of Pert Chart for execution plan

Appendix-28 Undertaking for Acceptance of 5 Years of

Appendix 29: Undertaking for Operation & Maintenance of

Tender Doc. No. GUDC/SOLAR/2026/P06

A. The information contained in this Tender Document or subsequently provided to Bidder(s),

in documentary or in any other form, by or on behalf of GUDC, any of their employees or

advisors, is provided to Bidder(s) on the terms and conditions set out in this Tender and

such other terms and conditions subject to which such information is provided.

B. This TENDER is not an agreement and is neither an offer nor invitation by GUDC to the

prospective Bidders or any other person. The purpose of this TENDER is to provide

interested parties with information that may be useful to them in the formulation of their

Bid for qualification pursuant to this TENDER. This TENDER includes statements, which

reflect various assumptions and assessments arrived at by GUDC or their advisors or

employees or agents, in relation to the Project. Such assumptions, assessments and

statements do not purport to contain all the information that each Bidder may require. This

TENDER may not be appropriate for all persons, and it is not possible for GUDC, their

employees or advisors to consider the investment objectives, financial situation and

particular needs of each party who reads or uses this TENDER.

C. The assumptions, assessments, statements and information contained in this TENDER may

not be complete, accurate, adequate or correct. Each Bidder should therefore, conduct its

own investigations and analysis and should check the accuracy, adequacy, correctness,

reliability and completeness of the assumptions, assessments, statements and information

contained in this TENDER and obtain independent advice from appropriate sources.

D. Information provided in this TENDER to the Bidder(s) is on a wide range of matters, some of

which depends upon interpretation of law. The information given is not an exhaustive

account of statutory requirements and should not be regarded as a complete or

authoritative statement of law. GUDC would not have any responsibility for the accuracy or

otherwise for any interpretation or opinion on law expressed herein.

E. GUDC, their employees and advisors make no representation or warranty and shall have no

liability to any person, including any Bidder or Bidder(s), under any law, statute, rules or

regulations or tort, principles of restitution or unjust enrichment or otherwise for any loss,

damages, cost or expense which may arise from or be incurred or suffered on account of

anything contained in this Bid or otherwise, including the accuracy, adequacy, correctness,

completeness or reliability of the TENDER and any assessment, assumption, statement or

Tender Doc. No. GUDC/SOLAR/2026/P06

information contained therein or deemed to form part of this TENDER or arising in any way

with prequalification of Bidders for participation in the Bidding process.

F. GUDC also accept no liability of any nature whether resulting from negligence or otherwise

howsoever caused arising from reliance of any Bidder upon the statements contained in this

TENDER. GUDC may, in their respective absolute discretion but without being under any

obligation to do so, update, amend or supplement the information, assessment or

assumptions contained in this TENDER.

G. The issuance of this TENDER does not imply that GUDC is bound to select and short-list

prequalified Bids for Bid Stage (the “Bid Stage”) or to appoint the selected Bidder, as the

case may be, for the Project[s] and GUDC reserves the right to reject all or any of the Bid or

Bids without assigning any reasons whatsoever.

H. The Bidder shall bear all its costs associated with or relating to the preparation and

submission of its Bid including but not limited to preparation, copying, postage, delivery

fees, expenses associated with any demonstrations or presentations which may be required

by the GUDC or any other costs incurred in connection with or relating to its Bid proposal.

All such costs and expenses will remain with the Bidder and the GUDC shall not be liable in

any manner whatsoever for the same or for any other costs or other expenses incurred by

a Bidder in preparation or submission of the Bid proposal regardless of the conduct or

outcome of the Bidding process.

Tender Doc. No. GUDC/SOLAR/2026/P06

1. Definition & Interpretation

1.1. Definitions

The following words and expressions shall have the meanings hereby assigned to them:

1.1.1. “Associate” means with respect to any specified Person, any other Person directly or

indirectly controlling, controlled by or under common control with such specified

1.1.2. “Adjudicator” means the person, who shall be an engineer or a firm of engineers who is

appointed by the Company to act as the adjudicator to make a decision on or to settle

any dispute or difference between the Company and the Contractor referred to it or her

by the parties pursuant to TENDER (Adjudicator) hereof.

1.1.3. “Applicable Law” means any statute, law, regulation, ordinance, notification, rule,

regulation, judgment, order, decree, bye-law, approval, directive, guideline, policy,

requirement or other governmental restriction or any similar form of decision of, or

determination by, or any interpretation or administration having the force of law in the

Republic of India and the State Government, by any Government Authority or

instrumentality thereof, whether in effect as of the date of this Contract or thereafter.

1.1.5. “B.I.S" shall mean specifications of Bureau of Indian Standards (BIS)

1.1.6. “Bid” shall mean the bid submitted by the Bidder in response to the Tender Document

No. “GUDC/SOLAR/2026/P06; 18th March 2026” issued by the Company.

1.1.7. “Bidder” shall mean Bidding Company or a Bidding Individual submitting the Bid. Any

reference to the Bidder includes Bidding Company / Bidding Individual including its

successors, executors and permitted assigns severally, as the context may require;

1.1.8. “Bid Security” shall mean the unconditional and irrevocable bank guarantee to be

submitted along with the Bid at the TENDER stage.

1.1.9. “Bid Capacity” shall means capacity offered to the bidder in this Bid under invitation.

1.1.10. “Bid Deadline” shall mean the last date and time for submission of Bid in response to

1.1.11. “CEA” shall mean Central Electricity Authority.

Tender Doc. No. GUDC/SOLAR/2026/P06

1.1.12. “Capacity Utilization Factor (CUF)” means the ratio of the annual output of the plant in

kWh versus contracted plant capacity for number of days. CUF = plant output in kWh /

(contracted plant capacity in kW * 365X24).

1.1.13. “Change in Law” means the occurrence of any of the following after the date of Bid:

I. the enactment of any new Indian law as applicable to the State;

II. the repeal, modification or re-enactment of any existing Indian law;

III. the commencement of any Indian law which has not entered into effect until the

IV. a change in the interpretation or application of any Indian law by a judgement of

a court of record which has become final, conclusive and binding, as compared

to such interpretation or application by a court of record prior to the date of Bid;

1.1.14. “Competent Authority’’ shall mean Vice President (P) of GUDC, himself and/or a person

or group of persons nominated by GUDC for the mentioned purpose herein.

1.1.15. “Commercial Operation” with respect to a Unit or the Facility, as the case may be, shall

refer to the period after the Commercial Operation Date of such Unit or Facility;

1.1.16. “Commissioned” means, in respect of a Unit or the Facility, as the case may be, passing

of the Commissioning Test by the Units, as certified by the GEDA/ DISCOM/ Gujarat State

Designated Agency or its representative(s) and interconnection of the Unit with the

Distribution Grid for receiving the Delivered Energy.

1.1.17. “Commission” and “Commissioning” means, the satisfactory, continuous and

uninterrupted operation of the equipment/system as specified after all necessary

statutory approvals, initial tests, checks and adjustments for a period of at least 3 days

to the satisfaction of the Company and necessary certificates are issued by the all

concerned/ nodal agencies appointed by appropriate authority/Government.

1.1.18. “Completion” means that the Facilities (or a specific part thereof where specific parts

are specified in the Scope of Work) have been completed operationally and structurally

and put in a tight and clean condition and that all work in respect of Commissioning of

the Facilities or such specific part thereof has been completed as per the Scope of Work.

1.1.19. “Company” means Gujarat Urban Development Company Limited (GUDC), Gandhinagar

(A Government of Gujarat Undertaking Building Infrastructure for Urban Gujarat)

includes the legal successors or permitted assigns of the Company.

Tender Doc. No. GUDC/SOLAR/2026/P06

1.1.20. “Contracted Capacity” shall mean the Total aggregate capacity in KW, proposed to be

allocated by GUDC to the Successful Bidder through this bidding process as per terms

and conditions specified therein.

1.1.21. “Contract” or “Contract Agreement “shall mean the agreement between the GUDC and

the successful EPC contractor for the execution of the works including therein all

documents such as the invitation to tender, instructions to Bidders, General Conditions

of Contract. Special Conditions of Contract, Job Specifications, General Requirements,

Time Schedule of Completion of Job, Drawings, Letter of Award awarding the work,

Agreed variations, if any etc.

1.1.22. “Contract Documents” means the documents listed in Appendix 19: Contract

1.1.23. “Contractor/ EPC Contractor” means the person(s) whose bid to perform the Contract

has been accepted by the GUDC and is named as such the Contract Agreement, and

includes the legal successors or permitted assigns of the Contractor.

1.1.24. “Contractor’s Equipment” means all plant, facilities, equipment, machinery, tools,

apparatus, appliances or things of every kind required in or for installation, completion

and maintenance of Facilities that are to be provided by the Contractor, but does not

include Plant and Equipment, or other things intended to form or forming part of the

1.1.25. “Construction Period” means the period from Effective Date till date the project got

1.1.26. “Commissioning Tests” means the tests to be carried out to determine the

Commissioning of the Unit or Facility, as the case may be, in accordance with the Testing

Procedures specified and as defined in this TENDER in Timeline (Clause No. 6.9);

1.1.27. “Chartered Accountant” shall mean a person practicing in India or a firm whereof all the

partners practicing in India as a Chartered Accountant(s) within the meaning of the

Chartered Accountants Act,

1.1.28. “Day” means calendar day of the Gregorian calendar.

1.1.29. “Delivery Point” shall be the interconnection point at which the Successful EPC

Contractor shall deliver the power. The metering shall be done at this point of

Tender Doc. No. GUDC/SOLAR/2026/P06

Interconnection. All charges and losses up to the Delivery Point shall be borne by the

Successful EPC Contractor;

1.1.30. “Delivered Energy” means the Electricity measured by the (Solar meter) at the Delivery

1.1.31. “Development Period” means the period starting from Effective date till the project get

1.1.32. “Defect Liability Period” means the period of validity of the warranties given by the

Contractor, during which the Contractor is responsible for defects with respect to the

Facilities (or the relevant part thereof) as provided in Clause No. 6.13 (Defect Liability)

1.1.33. “Document” or “Documentation” means documentation in printed or written form, or

in tapes, discs, drawings, computer programmes, writings, reports, photographs, films,

cassettes, or expressed in any other written, electronic, audio or visual form;

1.1.34. “Drawings” means all of the drawings (SOFT – AUTOCAD & PDF Format), calculations

and documents pertaining to the Project. This shall include both the electrical and civil

cum Structure drawing(s);

1.1.35. “Distribution Utility” means the local electric distribution owner and operator providing

electric distribution and interconnection services to Purchaser at the Premises;

1.1.36. “Effective Date” for this Contract shall mean the date of issuance of Letter of Award

(LoA) by the Owner.

1.1.37. “Electricity” means the electrical energy measured in kilowatt-hours;

1.1.38. “Emergency” means a condition or situation that is likely to endanger the safety of the

individuals on or about the Project, including Users thereof, or which poses an

immediate threat of material damage to any of the Project Assets;

1.1.39. “EPC” shall mean Engineering, Procurement & Construction.

1.1.40. “EPC Contract” means the engineering, procurement and construction contract or

contracts entered into by the GUDC with one or more Successful Contractors for, inter

alia, engineering and construction of the Project in accordance with the provisions of

1.1.41. "EMD" shall mean Earnest Money Deposit.

Tender Doc. No. GUDC/SOLAR/2026/P06

1.1.42. "Engineer" shall mean the authorized officer of the GUDC/ULB’s officials/Consultant to

act as Engineer to supervise the work for the purpose of the contract.

1.1.43. “Facilities” means the Plant and Equipment to be supplied and installed, as well as all

the Installation Services to be carried out by the Contractor under the Contract for

enabling the installation, construction, testing and commissioning of the Solar

1.1.44. “Government Authority” means Government of India, any central government or state

government or any governmental department, commission, board, body, bureau,

agency, authority, undertaking, court or other judicial or administrative body or any sub-

division or instrumentality thereof, central, state, or local, having jurisdiction over the

Contractor, the Facility, or the performance of all or any of the services, obligations or

covenants of Contractor under or pursuant to this Contract or any portion thereof.

1.1.45. “Guarantee Test(s)” means the Performance & Guarantee test(s) specified in the

(Guarantee Test) to be carried out to ascertain whether the Facilities or a specified part

thereof is able to attain the Functional Guarantees.

1.1.46. “GUDC” means Gujarat Urban Development Company Limited.

1.1.47. “Good Industry Practice” means the practices, methods, techniques, designs, standards,

skills, diligence, efficiency, reliability and prudence which are generally and reasonably

expected from a reasonably skilled and experienced operator engaged in the same type

of undertaking as envisaged under this TENDER and which would be expected to result

in the performance of its obligations by the Successful Bidder in accordance with this

TENDER, Applicable Laws and Applicable Permits in reliable, safe, economical and

efficient manner;

1.1.48. “Installation Services” means all those services ancillary to the supply of the Plant and

Equipment for the Facilities, to be provided by the Contractor under the Contract; e.g.,

transportation and provision of marine or other similar insurance, inspection,

expediting, Site preparation works (including the provision and use of Contractor’s

Equipment and the supply of all civil, structural and construction materials required),

installation, Commissioning, carrying out guarantee tests, operations, maintenance, the

provision of operations and maintenance manuals, training of Company's personnel etc.

Tender Doc. No. GUDC/SOLAR/2026/P06

1.1.49. “Interconnection Facilities” means all the facilities installed by the EPC Contractor at the

Relevant Premises inside site/office to enable GUDC to receive the Delivered Energy

from the Project at the Delivery Point, including transformers, and associated

equipment, relay and switching equipment, protective devices and safety equipment;

1.1.50. “Installed Capacity” means the aggregate capacity of Total 415 kw (AC) at 7 locations at

Methi kui PS(50 KW), Dholka Municipality; Nagar Seva Sadan(45 KW), Talav Kuva

Tank(40 KW) and Khodiyarnagar WW(50 KW) of Botad Municipality, Raniabaug NP

building (50 KW), Nadiad Municipality, Velnath Nagar Headworks(85kW) and

Himmatpur Patiya Headworks(95 kW), Patdi Municipality, Gujarat as certified after the

commissioning test at the generating terminal(s);

1.1.51. “Installation Work” means the construction and installation of the System and the start-

up, testing and acceptance (but not the operation and maintenance) thereof, all

performed by or for the EPC Contractor at the Premises.

1.1.52. “Insurance Cover” means the aggregate of the maximum sums insured under the

insurances taken out by the Successful Bidder, and includes all insurances required to

be taken out by the Successful Bidder but not actually taken, and when used in the

context of any act or event, it shall mean the aggregate of the maximum sums insured

and payable or deemed to be insured and payable in relation to such act or event;

1.1.53. “Intellectual Property” means all patents, trade-marks, service marks, logos, get- up,

trade names, internet domain names, rights in designs, blue prints, programmes and

manuals, drawings, copyright (including rights in computer software), database rights,

semi-conductor, topography rights, utility models, rights in know-how and other

intellectual property rights, in each case whether registered or unregistered and

including applications for registration, and all rights or forms of protection having

equivalent or similar effect anywhere in the world;

1.1.54. “Law” shall mean in relation to this Agreement, all laws including Electricity Laws in force

in India and any statute, ordinance, regulation, notification or code, rule and shall

further include without limitation all applicable rules, regulations, orders, notifications

by an India Governmental Instrumentality pursuant to or under any of them and shall

include without limitation all rules, regulations, decisions and orders of the Appropriate

Tender Doc. No. GUDC/SOLAR/2026/P06

1.1.55. “Letter of Award” shall mean the official notice issued by the GUDC notifying the

contractor that his bid has been accepted. It shall also termed as Letter of Intent (LOI).

1.1.56. “Losses” means all losses, liabilities, claims, demands, suits, causes of action, judgments,

awards, damages, clean up and remedial obligations, interest, fines, fees, penalties,

costs and expenses (including all attorneys’ fees and other costs and expenses incurred

in defending any such claims or other matters or in asserting or enforcing any indemnity

1.1.57. “KW” means Kilo-watts;

1.1.58. "kWh" shall mean Kilo-Watt-hour;

1.1.59. "kWp" shall mean Kilo-Watt Peak;

1.1.60. “Month” means calendar month of the Gregorian calendar.

1.1.61. “MNRE” means Ministry of New and Renewable Energy, Government of India.

1.1.62. “Main Meter” means for each Unit, the Metering System which would primarily be used

for accounting and billing of electricity generated by Units comprising the Facility to be

installed at the Delivery Point and operated and maintained by the Successful Bidder.

1.1.63. “Maintenance Manual” shall have the meaning ascribed to it in Clause 8.2;

1.1.64. “Material Adverse Effect” means a material adverse effect of any act or event on the

ability of either Party to perform any of its obligations under and in accordance with the

provisions of this Agreement and which act or event causes a material financial burden

or loss to either Party;

1.1.65. “Metering System” means the meters and other applicable devices/instruments

installed and used for measurement of electricity, delivered from the Electricity

generated by Units comprising the Facility, as per the specifications provided in TENDER

and shall comprise of the Main Meter and the Back Up Meter;

1.1.66. “Metering Date” means the first Business Day of each calendar month subsequent to

the month in which the Solar Power is generated by the EPC Contractor. The billable

units shall be equal to the difference between the meter reading on the Metering Date

and the meter reading on the previous month’s Metering Date;

1.1.67. "Mobilization of the Contractor" means performance by the Contractor of that entire

thing necessary to be fully ready to execute Work at site satisfying all Work pre-

requisites stipulated in the Contract. Mobilization of the Contractor shall include but

Tender Doc. No. GUDC/SOLAR/2026/P06

shall not be limited to providing of all transport from points of origin to Site, all

equipment and materials of construction, all personnel, satisfaction of government

requirements, all logistical support to the construction operations and setting up at site

in a condition of full readiness to execute Work.

1.1.68. “Month” means a period of thirty (30) days from (and excluding) the date of the event,

where applicable, else a calendar month;

1.1.69. “O&M” means Operations and Maintenance of Solar PV system;

1.1.70. “Owner” means Gujarat Urban Development Company Limited (GUDC) / Concern ULB.

1.1.71. “Operation Period” means the period commencing from COD and ending on the

1.1.72. “Plant Capacity” is defined as aggregate Total 415 kw (AC) of 7 locations at Methi kui

PS(50 KW), Dholka Municipality; Nagar Seva Sadan(45 KW), Talav Kuva Tank(40 KW) and

Khodiyarnagar WW(50 KW) of Botad Municipality, Raniabaug NP building (50 KW),

Nadiad Municipality, Velnath Nagar Headworks(85kW) and Himmatpur Patiya

Headworks(95 kW), Patdi Municipality, Gujarat; as per the provisions in this Tender

including but not limited to its design, engineering, procurement & supply, construction,

testing, commissioning, compressive operation and maintenance.

Note: The type and capacity of solar plant mentioned in the tender are indicative and

may liable to change as per current site situation during execution, for which the final

decision shall be of GUDC's.

1.1.73. “Performance Ratio” (PR) means the ratio of plant output versus installed plant capacity

at any instance with respect to the instantaneous radiation measured on site of three

(3) months duration.

1.1.74. “Pre-Commissioning” includes checking and testing of the equipment, machinery etc. as

required by the Contract, and making them ready for use.

1.1.75. “Project Site” means the parcels of solar system, rights-of-way, easements and access

roads comprised in the Relevant open spaces upon which the Unit(s) comprising the

Project will be installed;

1.1.76. “Project Manager” means the person appointed by the Company in the manner

provided in the TENDER (Project Manager) hereof and named to perform the duties

delegated by the Company.

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1.1.77. “Project” means the development, designing, construction, installation, commissioning,

comprehensive operation and maintenance of the Facility;

1.1.78. “Project Assets” means all physical and other assets relating to and forming part of the

Site including:

I. rights over the Site in the form of licence, Right of Way or otherwise;

II. tangible assets such as civil works and equipment

III. Project Facilities situated on the Site;

IV. all rights of the Owner under the Project Agreements;

V. financial assets, such as receivables, security deposits etc;

VI. insurance proceeds; and

VII. Applicable Permits and authorisations relating to or in respect of the Project;

1.1.79. Deleted

1.1.80. “Prudent Utility Practices” means those practices, methods, techniques and standards,

that are generally accepted for use in electric utility industries taking into account

conditions in India, and commonly used in prudent electric utility engineering and

operations to design, engineer, construct, test, operate and maintain equipment

lawfully, safely, efficiently and economically as applicable to power stations of the size,

service and type of the Project, and that generally conform to the manufacturer’s

operation and maintenance guidelines.

1.1.81. "Punch list" means those minor items/jobs relating to works outstanding at the time of

issuance of "Certificate of Completion and Acceptance" which do not affect the normal

operation of the company and which have been mutually agreed by the Company and

the Contractor, to be carried out / further completed (within a fix time period) by the

Contractor to the satisfaction of the Company in accordance with the Contract

1.1.82. “TENDER document” shall mean the bidding document issued by the Company including

all attachments vide TENDER No. GUDC/SOLAR/2026/P06 “Relevant Building” means a

Building comprising the Project

1.1.83. “Relevant Premises” means the required locations inside the ULBs for the project

implementation, provided by GUDC/Concern ULB’s to the Successful Bidder for the

purpose of implementing the Project;

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1.1.84. “Right of Way” means the access to the site with the intention of using it for installation

of Project, including the way from the entry point to the site through the shortest

accessible way, easements and other rights of way, howsoever described, necessary for

construction, operation and maintenance of the Projects in accordance with this

1.1.85. Deleted

1.1.86. “Solar Power System(s)” means the solar photovoltaic system(s) to be established at the

site specified in the TENDER.

1.1.87. “Subcontractor”, including vendors, means any person to whom execution of any part

of the Facilities, including preparation of any design or supply of any Plant and

Equipment, is sub-contracted directly or indirectly by the Contractor, and includes its

legal successors or permitted assigns.

1.1.88. “Successful Bidder” means the bidder who has been awarded the Contract and

described as Contractor for the “Project”.

1.1.89. “Time for Completion” shall be the date on or before which Commissioning of the

Facility has to be achieved to the satisfaction of the Company and such date is specified

1.1.90. “Scheduled COD” or “Scheduled Commercial Operation Date” means the date of

commissioning (Date of completion of work+ successful completion of PR test.);

1.1.91. “Solar Power” shall mean electricity generated from the solar generation project;

1.1.92. “Solar System” includes a solar PV panel power generation facility to be established by

the Successful Bidder on the Relevant Premises of GUDC/Concern ULB’s, and includes

the integrated assembly of photovoltaic panels, mounting assemblies, inverters,

converters, metering, lighting fixtures, transformers, ballasts, disconnects, combiners,

switches, wiring devices and wiring, and all other material comprising the Installation

Work, including protection equipment and the like necessary to deliver the Electricity

generated by it to DISCOM at the relevant Delivery Points;

1.1.93. “Specifications and Standards” means the specifications and standards relating to the

quality, quantity, capacity and other requirements for the Project, as set forth in

TENDER, and any modifications thereof, or additions thereto, as included in the design

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and engineering for the Project submitted by the Successful Bidder to, and expressly

approved by, GUDC.

1.1.94. “Statutory Entity” means:

In case of a State:

any ministry, department, sub-division, instrumentality or agency under the direct

control of the state Government; or

any company, corporation, government undertaking or other authority under the direct

control of the state Government; or

any other entity under the direct control of the state Government or established under

State Electricity Regulatory Commission,

In case of any other jurisdiction and the Central Government of the Republic of India,

the government of that jurisdiction or the Central Government, any ministry

department, sub-division instrumentality or agency or any company corporation

government undertaking, commission, or any other entity under the direct or indirect

control of such government or Central Government, or a regulatory entity established

1.1.95. “System Operations” means the Successful Bidder/EPC Contractor’s operation,

maintenance and repair of the System performed in accordance the requirements

1.1.96. “Taxes” means any Indian taxes including customs duties, GST, local taxes, cess, any

other taxes and any impost or surcharge of like nature (whether Central, State or local)

on the goods, materials, equipment and services incorporated in and forming part of

the Project charged, levied or imposed by any Government Instrumentality, but

excluding any interest, penalties and other sums in relation thereto imposed on any

account whatsoever. For the avoidance of doubt, Taxes shall not include taxes on

corporate income;

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1.1.97. “Tests” means the tests to be conducted by the Successful Bidder pursuant to the

Testing Procedures before the project commissioned.

1.1.98. “Unit” means each power generation installation consisting of solar PV panels and

auxiliary equipment and facilities forming part of the Facility to be installed on each

Relevant Premises and separately connected with the Distribution Grid of DISCOM and

all the Units comprising the Facility aggregate to the installed project capacity.

1.2. Interpretations

1.2.1. Language: Unless otherwise agreed by the parties in writing, the parties shall use the

English language and the Contract and the other Bid documents, all correspondence and

communications to be given, and all other documentation to be prepared and supplied

under the Contract shall be written in English, and the Contract shall be construed and

interpreted in accordance with that language. If any of the Contract Documents,

correspondence or communications are prepared in any language other than English,

the English translation of such documents, correspondence or communications shall

prevail in matters of interpretation.

1.2.2. Singular and Plural: The singular shall include the plural and the plural the singular,

except where the context otherwise requires.

1.2.3. Headings: The headings and marginal notes in the General Conditions of Contract are

included for ease of reference and shall neither constitute a part of the Contract nor

affect its interpretation.

1.2.4. Persons: Words importing persons or parties shall include firms, corporations and

government entities

1.2.5. Men: The word ‘Men’ in this TENDER shall mean all genders i.e. male, female and others.

1.2.6. Entire Agreement: The Contract constitutes the entire agreement between the

Company and Contractor with respect to the subject matter of Contract and supersedes

all communications, negotiations and agreements (whether written or oral) of parties

with respect thereto made prior to the date of Contract. The various documents forming

the Contract are to be taken as mutually explanatory. Should there be any discrepancy,

inconsistency, error or omission in the Contract documents, the matter may be referred

to the Adjudicator and the Contractor shall carry out work in accordance with the

decision of the Adjudicator.

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1.2.7. Amendment: No amendment or other variation of the Contract shall be effective unless

it is in writing, is dated, expressly refers to the Contract, and is signed by a duly

authorized representative of each party hereto.

1.2.8. Independent Contractor: Subject to the provisions of the Contract, the Contractor shall

be solely responsible for the manner in which the Contract is performed.

1.2.9. All employees, representatives or Subcontractors engaged by the Contractor in

connection with the performance of the Contract shall be under the complete control

of the Contractor and shall not be deemed to be employees of the Company and nothing

contained in the Contract or in any subcontract awarded by the Contractor shall be

construed to create any contractual relationship between any such employees,

representatives or Subcontractors and the Company.

1.2.10. Not in any case the sub-contractor shall claim or shall put any binding to the Company

and the sub-contractor must be handled by the Contractor and the Company shall not

be responsible for any claims at any time by the Contractor in relation to the sub-

1.2.11. Deleted

1.2.12. Subject to Clause1.2.10 (1.2.13) below, no relaxation, forbearance, delay or indulgence

by either party in enforcing any of the terms and conditions of the Contract or the

granting of time by either party to the other shall prejudice, affect or restrict the rights

of that party under the Contract, nor shall any waiver by either party of any breach of

Contract operate as waiver of any subsequent or continuing breach of Contract.

1.2.13. Any waiver of a party’s rights, powers or remedies under the Contract must be in writing,

must be dated and signed by an authorized representative of the party granting such

waiver, and must specify the right and the extent to which it is being waived.

1.2.14. Severability: If any provision or condition of the Contract is prohibited or rendered

invalid or unenforceable, such prohibition, invalidity or unenforceability shall not affect

the validity or enforceability of any other provisions and conditions of the Contract.

1.2.15. Country of Origin: “Origin” means the place where the materials, equipment and other

supplies for the Facilities are mined, grown, produced or manufactured, as the case may

be, and from which the services are provided. This shall be according to MNRE

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1.2.16. The words “include” and “including” are to be construed without limitation and shall be

deemed to be followed by “without limitation” or “but not limited to” whether or not

they are followed by such phrases;

1.2.17. References to “construction” or “building” include, unless the context otherwise

requires, investigation, design, developing, engineering, procurement, delivery,

transportation, installation, processing, fabrication, testing, commissioning and other

activities incidental to the construction, and “construct” or “build” shall be construed

1.2.18. References to “development” include, unless the context otherwise requires,

construction, renovation, refurbishing, augmentation, up-gradation and other activities

incidental thereto, and “develop” shall be construed accordingly;

1.2.19. Any reference to any period of time shall mean a reference to that according to Indian

1.2.20. Any reference to “hour” shall mean a period of 60 (sixty) minutes commencing either

on the hour or on the half hour of the clock, which by way of illustration means

(five), 6.00 (six), 7.00 (seven) and so on being hours on the hour of the clock and

(five thirty), 6.30 (six thirty), 7.30 (seven thirty) and so on being hours on the half hour

1.2.21. Any reference to day shall mean a reference to a calendar day;

1.2.22. References to the “winding-up”, “dissolution”, “insolvency” or “reorganisation” of a

company or corporation shall be construed so as to include any equivalent or analogous

proceedings under the law of the jurisdiction in which such company or corporation is

incorporated or any jurisdiction in which such company or corporation carries on

business including the seeking of liquidation, winding-up, reorganisation, dissolution,

arrangement, protection or relief of debtors;

1.2.23. Unless expressly provided otherwise in this TENDER, any Documentation required to be

provided or furnished by the Successful EPC Contractor to GUDC shall be provided free

of cost and in five copies, and if GUDC is required to return any such Documentation

with their comments and/or approval, they shall be entitled to retain two copies

---End of Section---

Tender Doc. No. GUDC/SOLAR/2026/P06

2. Introduction

2.1. About the Company

2.1.1. About Gujarat Urban Development Company Limited (GUDC)

Gujarat Urban Development Company Limited (GUDC) is positioned to facilitate urban

development by assisting state government and existing agencies in formulation of policy,

institutional capacity building and project implementation, and to assist in the funding and

implementation of projects and the Concern ULB is the owner / Beneficiary of the particular

Assistance to State Government

 Assist state government in preparation of policy and strategy for urban development

infrastructure provision.

 Assist state government in preparation of guidelines for private sector participation in

urban development.

 Maintain an updated information database on urban development.

 Assess the need and form of Government Guarantee to ULBs required for raising funds

from the market.

 Assist the state government in formulation, appraisal, implementation and monitoring of

urban projects funded from multilateral sources.

 Channelize additional grant / tax-sharing between the state and the ULBs (as

recommended by State Finance Commission) based on criteria to be decided (e.g., reforms

in accounting systems, revenue collection efficiency etc., undertaken by the ULB)

 Implement urban reforms as an agent of the State Government

Business Objective

 GUDC would facilitate sustainable development of urban areas, both new and existing, in

order to achieve high living standards and growth of economic activities.

Corporate Objective

 GUDC would seek to undertake its activities on a self-sustaining basis. It would balance its

development-oriented roles and activities with its commercially lucrative activities.

 GUDC would actively seek partnership with the private sector, govt. agencies and

educational institutions in order to accomplish its roles and support the existing urban

Tender Doc. No. GUDC/SOLAR/2026/P06

 GUDC would seek to be a proactive body in understanding the trends, needs and

interventions required in the field of urban development for provision of sufficient and

high-quality urban areas and urban infrastructure either directly or by strengthening other

entities responsible for the same.

Ministry of New and Renewable Energy (MNRE) has set a target of installing 500 GW of solar

capacity by 2030 in the country. India’s total power capacity has now reached around 485 GW.

Out of this, 242 GW comes from thermal power, 116 GW from solar, and 51.6 GW from wind.

This shows India’s strong move towards clean energy and better energy security. While India

envisages achieving an ambitious target of 500 GW, the Gujarat Urban Development Company

Limited (GUDC) is committed to contribute to this target by developing project at their

premises. In order to continue promoting Green Technology and to meet the Solar Renewable

Purchase Obligations the company had taken up plans for installation of Grid Connected Solar

PV Installations at at Dholka, Botad, Nadiad and Patdi ULBs.

Solar Energy: Solar panels are proposed to be installed in the ULBs premises to generate solar

2.2. About the Project

The Gujarat Urban Development Company Limited (GUDC) based at Gandhinagar in

association with Pramukh Sangam Energy Solutions LLP proposes to implement 415 kw (AC)

at Methi kui PS(50 KW), Dholka Municipality; Nagar Seva Sadan(45 KW), Talav Kuva Tank(40

KW) and Khodiyarnagar WW(50 KW) of Botad Municipality, Raniabaug NP building (50 KW),

Nadiad Municipality, Velnath Nagar Headworks(85kW) and Himmatpur Patiya Headworks(95

kW), Patdi Municipality, Gujarat with the objective of generating and supplying green energy

to its premises. It is under Government of India (GoI) initiative to promote renewable energy.

The generated solar power will be utilized solely by Concern ULB through net metering

system. The scheme aims to reduce the fossil fuel-based electricity load on main grid and

make Dholka, Botad, Nadiad and Patdi ULBs premises self-sustainable from the point of

electricity, to the extent possible and as part of this endeavour.

GUDC proposes to establish Total 415 kW (AC) Solar Systems including the development,

design, procurement, supply, erection, testing, commissioning and operation & maintenance

for five (5) years of the Power Plant (s) is hereinafter referred to as the (the “Project (s)”). The

Tender Doc. No. GUDC/SOLAR/2026/P06

Company has now decided to undertake a competitive Bidding process for selection of the

EPC Contractor to implement the Project (the “Contractor”).

The details of the facilities which the Company requires to be set up in the present instance

and for which Bids are hereby invited are described in this Tender. The overall responsibility

of complete Scope of Work rests with the Bidder.

--- End of Section---

Tender Doc. No. GUDC/SOLAR/2026/P06

3. Instruction to Bidders

3.1. General Instructions

3.1.1. The current document is the request for proposal, which is issued to all the potential

Bidders, requesting a proposal for implementation of the Project on a fixed price basis. A

Contractor would be selected through competitive bidding process for execution of the

3.1.2. The Company expects Bidders to confirm compliance to TENDER terms, conditions and

specifications at the time of submission of Bids, failing which the Bids are liable to be

rejected. Hence, the Bidders in their own interest are advised to submit their Bids

complete in all respects conforming to all terms and conditions of this TENDER.

3.1.3. Before submitting the Tender, the instructions may be read carefully regarding

submission of Tender. If any bidder finds discrepancies or omissions in the Tender

documents or is in doubt as to the true meaning of any part, he shall clarify same from

the Tender issuing office in writing before the due date of submission of the queries.

3.1.4. Site visit and verification of information-

The Site data of the Project is being provided only as a preliminary reference document

by way of assistance to the Bidders who are expected to carry out their own surveys,

investigations and other detailed examination of the Project before submitting their Bids.

Nothing contained in the site data Report shall be binding on the GUDC nor confer any

right on the Bidders, and the GUDC shall have no liability whatsoever in relation to or

arising out of any or all contents of the site data.

Bidders are encouraged to submit their respective Bid after visiting the Project site and

ascertaining for themselves the site conditions, traffic, location, surroundings, climate,

availability of power, water and other utilities for construction, access to site, handling

and storage of materials, weather data, applicable laws and regulations, and any other

matter considered relevant by them.

3.1.5. Bids shall be evaluated based on the information/documents available in the Bid. Hence,

Bidders are advised to ensure that they submit appropriate and relevant supporting

documentation along with their proposal in the first instance itself. Bids not complying

with the requirements of this TENDER are liable to be rejected without any further

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3.1.6. Bidders need to ensure that in the event the Project is awarded to it, and during

execution of the Project, it shall not seek to alter any agreed contractual terms,

conditions and specifications.

3.1.7. Bids must be accompanied by a Tender fee and EMD of value as specified in the NIT in

the form and manner as specified in the TENDER document and must be delivered.

3.1.8. The specification provided with these TENDER outlines the functional requirement. The

Bidder must submit a Proposal based upon their own design, meeting the functional

3.1.9. Bidders shall deploy the latest state-of-the-art technology and must ensure that the

goods supplied are new, unused and of most recent or current models and incorporate

all recent improvements in design and materials for the implementation of the Project.

3.1.10. Deleted

3.1.11. Issuance of this TENDER does not construe that the Bidder has been short-listed or

3.1.12. (A) The Company reserves the right, to accept or reject any Bid and to annul the bidding

process and reject all Bids at any time prior to award of the Agreement, without assigning

any reason thereof and without thereby incurring any liability to the affected Bidder(s).

(B) As the Bid for the said work is invited for execution of grid connected solar PV power

project for solar PV power project for Dholka, Botad, Nadiad and Patdi Municipality, the

LOA will be placed to the successful bidder on receipt of GUDC Approval.

3.1.13. The Company reserves the right to reject any Bid submitted with deviations beyond the

one that is specified and mentioned in the TENDER and no time shall be given in any

circumstance after opening of Financial Proposal for submission of documents which are

missing with Bid.

3.1.14. Any condition or qualification or any other stipulation contained in the Bid shall render

the Bid liable to rejection as a non-responsive Bid.

3.1.15. In case of change in ownership of the Project, all the Agreements and Contracts signed

with the Company will stand true and valid with the new Owner of the Project.

3.1.16. Tender Issuing Authority reserves the right to cancel the NIT or to change qualifying

requirement or to reject any or all the tenders so received without assigning any reason.

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3.1.17. The Site for the work is either available or it shall be made available in the parts in a

manner so as not to hamper the progress of work.

3.1.18. Canvassing in connection with Tender is strictly prohibited and the Tender submitted by

the Bidders who resort to canvassing will be liable to rejection straight way.

3.1.19. The Bid and all communications in relation to or concerning the Bidding Documents and

the Bid shall be in English language.

3.1.20. All rates shall be quoted on the proper form i.e. price bid supplied as part of the Tender

documents on e-tender portal by the Department.

3.1.21. The Gujarat Urban Development Company Limited (GUDC) does not bind itself to accept

the lowest Bid and reserves to itself the right to accept the whole or any part of the

Tender and the Bidder shall be bound to perform the same at the rate quoted in this

3.2. Pre-Qualifying Requirements (PQRs)/ Eligibility Conditions

I. The Bidder shall be either a body incorporated in India under the Companies Act,

or 2013 including any amendment thereto or a Partnership Firm having executed

Partnership Deed and registered as per Sections 58 & 59 of the Partnership Act, 1932, as

amended or a Limited Liability Partnership (LLP) Firm registered under Section 12 of

Limited Liability Partnership Act, 2008, as amended or registered Sole Proprietor under

the applicable law. The bidder shall be engaged in the business of Solar PV Power

projects. The Start-up companies which are recognized by Industries Commissioner ate

under start up innovation Policy shall also be allowed for participation for which the

Industries & Mines Department GR no. KHARAD-102018-UOR-1-CH dated 30/04/2018

revised time to time shall be taken into consideration for below exemptions provided

they meet qualifying criteria specified in tender.

a) Exemption for paying Tender Fees & EMD.

b) Exemption for prior turnover

c) Exemption in solvency

The start-up companies shall have to submit their registration certificates as start-up

company issued by competent authority as mentioned in above GR to get relevant

exemptions. DOCUMENTRY EVIDENCE

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Note: for start-up companies, above provisions shall apply in place of relevant

provisions provided at the tender clause no. 3.2.3 (i), (ii), (iii) and (iv).

II. A copy of Certificate of Incorporation (CoI) or Partnership Deed or LLP or Sole Proprietor

Registration (if applicable) and relevant shall be furnished along with the bid in support

3.2.2. TECHNICAL

I. The Bidder shall have designed, engineered, procured, supplied, erected, and

commissioned of Grid Connected Solar Photovoltaic Power Plant (s) as EPC Contractor

(Sole Bidder) of cumulative installed capacity of 2000 kW mentioned in India since last

(Five) financial and upto bid due date. Minimum Capacity of each project should be

considered 50 kW Industrial/Commercial Solar PV Project or above to meet the

cumulative capacity, out of which

At least one single Solar PV Power Plant should have been of 332 kW capacity or above

At least two (2) single Solar PV Power Plant should have been of 208 kW capacity or

At least Three (3) single Solar PV Power Plant should have been of 166 kW capacity or

II. The Bidder shall also submit documentary proof of achievement of targeted performance

generation/CUF Certificate of at least one solar PV power plant of 208 kW (AC) or above

installed in India and have completed minimum one (01) year operation & maintenance

and the same shall be certified by the Developer/Client/Owner of that particular solar PV

power plant in last 05 financial Years and up to bid due date.

III. Bidder shall submit, in support to the above Point (i), the list of projects commissioned

along with their work order/ LOA and the completion certificates from Authority

confirming the completion of the plant. In case the Bidder wants to meet the eligibility

criterion through its own power plant, then a certificate from Chartered Accountant and

Chartered Engineer to that effect will be required to be submitted along with

commissioning certificate from respective government authority.

Tender Doc. No. GUDC/SOLAR/2026/P06

IV. The Bidder shall have qualified manpower with relevant design, engineering,

procurement, supply, project execution expertise and experience for development and

O&M of Solar PV power Plant, confirming to clause no. 3.2.6 and has to submit CV as

documentary evidence along with Technical bid.

3.2.3. FINANCIAL

I. The Bidder shall have excellent financial background with business in solar PV projects.

The Average annual turnover of the Bidder, in the last five (05) financial years from 2020-

21 should not be less than Rs.136 lacs

II. The Bidder shall submit audited annual report of Fys, 2020-21, 2021-22, 2022-23, 2023-

24, and 2024-25. The Bidder shall submit CA Certificate as per Appendix

III. The Bidder shall be submitted Solvency Certificate (Liquidity Certificate) of minimum Rs.

54,08,736 (as mention in Table – A(ii) of tender document) issued by Nationalized Bank

or Bank listed as per latest GR of Finance Department. Such certificate should be issued

on Banker’s letter head as per Appendix 21 of calendar year 2026 or having validity up to

last date of submission for bid.

IV. The Bidder shall not have been blacklisted/banned/de-listed/debarred/Terminated from

business by State/Central Govt. departments or Government Under takings or any

organizations since last 05 financial years and as on bid due date. Non blacklist

declaration as per Appendix 07 to be submitted.

The Tender of only those bidders will be considered who will produce documentary

proofs, self-attested to meet the following requirements

I. The Bidders to have valid Proof of Permanent EPF account no. and GST no.

II. The agency should have valid license under contract labour regulation and abolition of

the Gujarat state or should give an undertaking that he will get himself registered within

one month if work is allotted to him.

III. The experience list shall include only projects executed by Bidder himself as a turnkey

contractor which shall include entire Engineering, Procurement, Supply & Installation and

not as a sub-contractor. The list of projects executed shall clearly mention name of the

technology partner / licensee agreement company and whether the same is valid as on

date with date of expiry.

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IV. The Bidder shall ensure that all the information, facts & figures, data provided in the bid

are accurate and correct. GUDC reserves the right to confirm / verify any data or

information through their own sources. GUDC also may contact directly the references

given for the project executed and may also visit the site, manufacturing facilities & sub-

vendors works etc., physically to ascertain capabilities of the applicant, if so desire at

their own cost. Bidder may have to facilitate GUDC for any such visit.

V. The Bidder shall furnish documentary evidence by way of copies of Contract / Purchase

Order, Completion Certificate or any other equivalent document, Audited Balance Sheet

and Profit & Loss Account etc., along with the Bid to establish experience / track record

and financial capabilities meeting Bid Evaluation Criteria.

VI. The Bidder or its Proprietor / Partner(s) / Director(s) of the Firm should not have been

convicted by a Court of Law for an offence involving moral turpitude in relation to

business dealings during the past five (5) financial years.

The Bidder should meet all the above eligibility criteria as on the bid due date. The bids

of only those bidders, who meet the Bidder's Eligibility Criteria, will be considered for

further evaluation.

The Bidder with poor performance record in GUDC’s past projects shall not be

considered for evaluation and be out rightly rejected without giving reason thereof.

Notwithstanding anything stated above GUDC reserves the right to verify all

statements/information submitted to confirm the Bidders claim on experience and to

assess the Bidders capability and capacity to perform the contract should the

circumstances warrant such an assessment in the overall interest of the project.

Further, notwithstanding the above, GUDC reserves the right to accept or reject any BID

and to annul the process of submission of BID and reject all or any BID, at any time

without assigning any reason thereof. GUDC shall not in no way responsible or liable for

any loss, damage or inconvenience caused to the rejected Applicants whatsoever. GUDC

shall be under no obligation to inform the affected Applicants of the rejection and / or

ground for rejection.

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3.2.5. Available Bid Capacity

The Bidder who fulfils the qualifying criteria mentioned above shall be qualified only if

he fulfils the requirement of bidder’s capacity. The bidding capacity of any tender/ Bidder

is required to be more than or equal to the estimated cost of the work i.e., Estimated

Cost of Project the bidder’s capacity shall be computed as shown below.

A = Performance of the bidder for Maximum annual turnover in any one year

during the last (05) Five Financial years (i.e. from FY 2020-21 to FY 2024-25),

updated at the base year of inviting tender.

B = Value of the existing commitments as on date of bid submission for works

(complete or partial) to be completed in the next (0.75 years) (Equivalent to

duration of the project) The details shall be countersigned by the Executive

Engineer or the equivalent officer of the employer on whose behalf the firm

is carrying out the works.

Also, declaration of financial liabilities, work on hand/completed projects

on Rs.300/- non-Judicial stamp paper.

N = Years prescribed for completion of the work for which bids are invited (0.75

Note: -All Above Pre-Qualifying Requirements (PQRs)/ Eligibility Conditions under clause

3.2.1, 3.2.2 ,3.2.3 ,3.2.4 ,3.2.5 are mandatory & the bidder not satisfying these criteria

will be technically disqualified.

3.2.6. Manpower Requirement: -

The following minimum team members are required to be deployed

Project Manager cum Team Leader (Degree engineer in Electrical

With a minimum of 15 years of solar project experience)

Civil Engineers (Degree holders) with having minimum 7 years of

Tender Doc. No. GUDC/SOLAR/2026/P06

Electrical Engineer (Degree holders) with having minimum 5 years of solar

project experience

Supervisors (Diploma holders) with having minimum 3 years of solar

project experience

Technical Assistants (Diploma / ITI) with having minimum 3 years of solar

project experience

3.3. Local Conditions

3.3.1. The Bidder is advised to visit and examine the site conditions, traffic, location,

surroundings, climate, availability of power, water and other utilities for construction,

access to site, handling and storage of materials, weather data, applicable laws and

regulations, and obtain for itself on its own responsibility all information that may be

necessary for preparing the Bid and entering into the Contract Agreement. The costs of

visiting the Site shall be at Bidder's own expense.

3.3.2. The Bidder and any of its personnel or agents shall be granted permission by the

Company to enter upon its premises and lands for the purpose of such inspection, but

only upon the express condition that the Bidder, its personnel or agents, shall release

and indemnify the Company and its personnel and agents from and against all liability

in respect thereof and shall be responsible for personal injury (whether fatal or

otherwise), loss of or damage to property and any other loss, damage, costs and

expenses however caused, which, but for the exercise of such permission would not

3.3.3. Failure to visit the Site or failure to study the TENDER document shall in no way relieve

the successful Bidder from furnishing any material or performing any work in

accordance with the TENDER document.

3.3.4. In no case the date of Time for Completion of the project shall be extended, due to the

failure of the Bidder to visit the site and it shall be in line with the timeline of Gujarat

Urban Development Company Limited (GUDC) under the Scheme.

3.3.5. It shall be deemed that by submitting a Bid, the Bidder has:

I. Made a complete and careful examination of the TENDER document;

II. Received all relevant information requested from the Company;

Tender Doc. No. GUDC/SOLAR/2026/P06

III. Acknowledged and accepted the risk of inadequacy, error or mistake in the

information provided in the TENDER documents or furnished by or on behalf of the

Company relating to any of the matters referred to in NIT.

IV. Satisfied itself about all matters, things and information including matters referred

to in the Bid Info at a glance, necessary and required for submitting an informed

Bid, execution of the Project in accordance with the TENDER document and

performance of all of its obligations there under;

V. Acknowledged and agreed that inadequacy, lack of completeness or incorrectness

of information provided in the TENDER document or ignorance of any of the

matters referred to in the TENDER herein shall not be a basis for any claim for

compensation, damages, extension of time for performance of its obligations, loss

of profits etc. from the Company, or a ground for termination of the Contract

VI. Agreed to be bound by the undertakings provided by it under and in terms hereof.

3.3.6. The GUDC shall not be liable for any omission, mistake or error on the part of the Bidder

in respect of any of the above or on account of any matter or thing arising out of or

concerning or relating to the TENDER document or the Bidding Process, including any

error or mistake therein or in any information or data given by the Company.

3.4. Local Regulatory Frame Work

3.4.1. It shall be imperative for each Bidder to fully inform itself of all local conditions, laws

and factors which may have any effect on the execution of the Contract as described in

the Bidding Documents. The Company shall not entertain any request for clarification

from the Bidder, regarding such local conditions.

3.4.2. It is the responsibility of the Bidder that such factors have properly been investigated

and considered while submitting the Bid proposals and that no claim whatsoever

including those for financial adjustment to the Contract awarded under the TENDER

document shall be entertained by the Company and that neither any change in the time

schedule of the Contract nor any financial adjustments arising thereof shall be permitted

by the Company.

3.5. Clarifications to Tender Document

Tender Doc. No. GUDC/SOLAR/2026/P06

3.5.1. A Bidder requiring any clarification of the Tender documents may notify GUDC in writing

or by facsimile or by e-mail to GUDC’s contacts mentioned in Table - A of NIT:

Vice President (P)

Gujarat Urban Development Company Limited (GUDC),

Block No.1, Ground Floor, Karmayogi Bhavan,

Behind Nirman Bhavan, Sector 10/A, Gandhinagar: 382010, Gujarat

Website: http://gudcltd.com

3.6. Amendments to Tender Document

3.6.1. GUDC may, for any reason, whether at his own initiative or in response to a clarification

requested by a prospective Bidder, modify the Tender Documents.

3.6.2. The amendments will be notified on website as mentioned in Notice Inviting e-Tender

of this Tender.

3.6.3. In order to allow the prospective Bidder(s), reasonable time in which to take the

amendment into account in preparing their Bids, GUDC at its discretion, may extend the

deadline for the submission of Bids.

3.7. Acceptance of Bids

3.7.1. GUDC neither bind itself to accept the lowest nor to assign any reason for the rejection

of any Bid. It is also not binding on GUDC to disclose any analysis report.

3.8. Withdrawal of Invitation to Bid

3.8.1. While GUDC has floated this Tender and has requested Bidders to submit their

proposals, GUDC shall always be at the liberty to withdraw this invitation to bid at any

time before the acceptance of bid offer.

3.9. Representative/ Agent of Bidder

3.9.1. All the Bidders are requested to mention the name of their authorized representative/

agent, if any, with full address in the Bid. In case the representative is changed during

the bidding process such changes shall be notified by the Bidder, failing which, GUDC

shall not accept any responsibility.

3.10. Financial Proposal and Currencies

3.10.1. The Bidders shall quote the prices inclusive of all the taxes, while also providing the

breakup of taxes as mentioned in Appendix 16 and shall be submitted Online Only. The

Bidder shall indicate the price in Financial Proposal in Indian National Rupee only.

Tender Doc. No. GUDC/SOLAR/2026/P06

3.11. Bank Guarantees & EMD

3.11.1. EMD shall be in the form of Bank Guarantee/ FDR/DD of the bank as specified in NIT and

should be in favour of “Gujarat Urban Development Company Limited (GUDC)” payable

at Gandhinagar.

3.11.2. The validity of EMD shall be as mentioned in NIT.

3.11.3. The EMD shall specifically bind the Bidder to keep its Bid valid for acceptance and to

abide by all the conditions of the Tender Documents in the event of GUDC desiring to

award the work to the said Bidder. GUDC shall have an unqualified discretion to forfeit

the EMD in the event: (i) Bidder fails to keep the Bid valid up to the date specified/

required; or (ii) refuses to unconditionally accept Letter of Award and carry out the work

in accordance with the Bid in the event such Bidder is chosen as the Successful Bidder.

3.11.4. The Company shall, however, arrange to release the EMD in respect of unsuccessful

Bidders, without any interest, after the acceptance of LOA along with the submission of

Security Deposit by successful Bidder.

a) The EMD shall be released to bidders in the following manner. The EMD of the

Successful Bidder shall be returned after submission of Security Deposit in the form

of Bank Guarantee / FDR.

b) EMD of the unsuccessful bidders shall be released after releasing the EMD of the

Successful Bidder.

3.11.5. The EMD shall be forfeited and appropriated by GUDC as per the discretion of GUDC as

genuine, pre-estimated compensation and damages payable to GUDC for, inter alia,

time, cost and effort of GUDC without prejudice to any other right or remedy that may

be available to GUDC hereunder or otherwise, under the following conditions:

a) If a Bidder engages in a corrupt practice, fraudulent practice, coercive practice, or

restrictive practice;

b) In the case of Successful Bidder, if it fails within 7 (seven) days from the issue of LoA

– (a) to sign the Contract Agreement and/ or (b) to furnish the Security Deposit in

the form of Bank Guarantee/FDR within the period prescribed.

c) In case the Successful Bidder, having signed the Contract Agreement, commits any

breach thereof prior to furnishing the Security Deposit in the form of Bank

Tender Doc. No. GUDC/SOLAR/2026/P06

3.11.6. Security Deposit :

Within 15 (Fifteen) days of receipt of Letter of Acceptance, the successful Bidder shall

furnish to the Employer an irrevocable and unconditional guarantee from any

nationalized bank or as per latest list of FD GR. for an amount equal to 5% (five percent)

of its total project cost (EPC cost + O&M cost). This SD BG/FDR shall cover the risk

against timely commissioning of the Plant, extended warrantee for equipment up to

O&M Period and recovery towards shortfall in NEEGG during O&M Period.

The Performance Security shall be valid beyond 60 (sixty) days of the Defects Liability

Period /O & M period.

Further amount equivalent to 5% of the total project cost (EPC cost + O&M cost) shall

be deducted from the running bill as retention money which shall be released as under:

A. Retention money of 5% EPC cost shall be released after successfully completion

of 03 Months PR test.

B. Retention money of 5% O&M cost shall be released after successfully completion

of 05 years O&M period.

Prior to making any claim under the performance security, the Employer shall, in every

case, notify the Contractor stating the nature of the default for which the claim is to be

3.11.7. Contractor shall be responsible for any water leakage or seepage on the roof during the

installation of solar plants and also during the O&M period of 5 years. In case of leakage

during the above-mentioned period, necessary repair by specialized agency approved

by GUDC must be carried out by the Contractor immediately without any cost

implications to GUDC, failing which, the actual amount will be deducted from the

contractor’s RA bill. (sequence check)

3.12. Third Party Engineering Services Agency

3.12.1. Third Party Engineering Services (TPE) agency appointed by GUDC, at its sole discretion,

to conduct any kind of inspection regarding procurement, fabrication, installation, hook-

up, quality, execution, commissioning of the Project. The Contractor shall provide

necessary access and coordination to conduct such inspections. The Contractor shall

provide all necessary access and cooperation for inspection by National or State agency.

3.13. Right to Accept or Reject any or all Bids

Tender Doc. No. GUDC/SOLAR/2026/P06

3.13.1. Notwithstanding anything contained in this Tender, GUDC reserves the right to accept

or reject any Bid and to annul the bidding process and reject all Bids at any time without

any liability or any obligation for such acceptance, rejection or annulment, and without

assigning any reasons thereof.

3.13.2. GUDC reserves the right to reject any Bid and appropriate the EMD if:

a) After reviewing the Bid there is doubt that the offered works, materials or

equipment are not state of the art and/ or not suitable for the site operating

b) At any time, a material misrepresentation is made or uncovered, or

c) The Bidder does not provide, within the time specified by the GUDC, the

supplemental information sought by GUDC for evaluation of the Bid.

3.13.3. In the event of clause 3.11.3 (ii), GUDC also reserve right to ban the business for the

period of one year or whichever deem appropriate by GUDC, which shall liable to

circulate to relevant authorities.

3.13.4. Such misrepresentation/ improper response shall lead to the disqualification of the

Bidder. If such disqualification / rejection occurs after the Bids have been opened and

the Successful Bidder gets disqualified / rejected, then GUDC reserves the right to:

a) Select the next Bidder with the Lowest Evaluated Price Bid Value (in Rs.) as the

Successful Bidder; <or>

b) Take any such measure as may be deemed fit in the sole discretion of GUDC,

including annulment of the bidding process.

3.13.5. In case it is found during the evaluation or at any time before signing of the Contract or

after its execution and during the period of subsistence thereof, that one or more of the

pre-qualification conditions have not been met by the Bidder or the Bidder has made

material misrepresentation or has given any materially incorrect or false information,

the Bidder shall be disqualified forthwith, if not yet appointed as the Contractor either

by issue of the LoA or entering into of the Contract Agreement, and if the Successful

Bidder has already been issued the LoA or has entered into the Contract Agreement, as

the case may be, the same shall, notwithstanding anything to the contrary contained

therein or in this Tender, be liable to be terminated, by a communication in writing by

GUDC to the Contractor, without GUDC being liable in any manner whatsoever to the

Tender Doc. No. GUDC/SOLAR/2026/P06

Bidder or Contractor, as the case may be. In such an event, GUDC shall forfeit and

appropriate the bank guarantees without prejudice to any other right or remedy that

may be available to GUDC.

3.13.6. GUDC reserves the right to verify all statements, information and documents submitted

by the Bidder in response to the Tender Documents. Failure of GUDC to undertake such

verification shall not relieve the Bidder of its obligations or liabilities hereunder nor will

it affect any rights of GUDC there under.

3.13.7. The GUDC shall not be liable for any omission, mistake or error in respect of any of the

above or on account of any matter or thing arising out of or concerning or relating to

TENDER, the Bidding Documents or the Bidding Process, including any error or mistake

therein or in any information or data given by the GUDC.

3.14. Net Electrical Energy Generation Guarantee (NEEGG)

3.14.1. The Bidder shall be given undertaking (As per Appendix-28) the Net Electrical Energy

Generation Guarantee (NEEGG) for five (5) years period at the solar metering point.

Solar meter shall be placed near to interconnection panel at customer LT Panel. The

Bidder shall confirm NEEGG per annum (i.e. Summation of Net Energy Generation from

Solar System) after considering proposed configuration and all local conditions, solar

insolation, wind speed and direction, air temperature & relative humidity, barometric

pressure, rainfall, sunshine duration, and grid related all other factors and losses due to

near shading, incidence angle modifier, irradiance level, temperature loss, array loss,

module quality loss, module array mismatch loss, soiling loss and various inverter losses

etc. Minimum NEEGG given in Appendix-28 has to be confirmed and agreed by Bidder.

It would be the responsibility of the bidder to maintain the SPV based power plant and

it’s all the equipment’s in perfect condition at his own cost for the entire period of

years for which GUDC shall pay the agreed O&M charges and the applicable taxes only.

The replacement/ repair/ modification of any/ all equipments has to be carried out by

the contractor at his own cost for the entire period of contract, so as to give the min.

95% of claimed net energy generation (NEEGG) for particular year “i.e. NEEGG as per

Appendix 28”. GUDC shall not be responsible for any break down/ failure etc. of any

equipment to any reason there of and that the contractor shall maintain requisite stock

Tender Doc. No. GUDC/SOLAR/2026/P06

of spares of various equipments. No deviation shall be allowed expect grid outage. The

bidder may take a suitable type of insurance to meet out the above purpose.

3.14.2. Bidders are expected to undertake their own study of solar profile and other related

parameters of the area and make sound commercial judgment about power output i.e.

Net Electrical Energy Guaranteed Generation It shall be the responsibility of the Bidder

to access the corresponding solar insolation values and related factors of solar plant

along with expected grid availability. The Bidder should access all related factors about

the selected Site for the Project and then give acceptance of the NEEGG for the proposed

3.14.3. The EPC contractor shall submit Declaration for acceptance of NEEGG for 5 years O&M

period as per the Appendix- 28 at the time of technical submission of Bid. mandatory

for technical qualification.

3.14.4. For consideration of NEEGG deviation due to Grid Outage, the agency should submit

Grid outage duration along with generation loss duly certified by concerned ULB &

PMC/TPI at ULB interconnection point along with documentary evidence during the

solar generation hours (07:00 hrs to 18:00 hrs) during the day.

Method for Calculation for NEEGG deviation for specific site is as under:

Annual Quoted NEEGG of Site (kWh)

Average Hourly Generation (A.H.G) =

365 days X Generation hrs.

Deviation in NEEGG (kWh) = A.H.G X Total hours of Grid outage

For Example: If Quoted NEEGG is 10,000 unit (kWh) for year and total grid outage hours

during the solar generation time (i.e. 07:00 hrs to 18:00 hrs) are 50 hrs., then the Relaxation

in NEEGG will be as follow:

Tender Doc. No. GUDC/SOLAR/2026/P06

Average Hourly Generation

= 365 days X 11 Hours (Generation

Relaxation in NEEGG (kWh) = 2.49 (kwh/hrs) X 50 (hr)

= 124.5 kWh (Unit)

So, according to above mentioned formula 124.5 units will be relaxed from the quoted

NEEGG for the site.

Tender Doc. No. GUDC/SOLAR/2026/P06

4. Submission of Bid

4.1. General Terms

4.1.1. A Bidder is eligible to submit only one Bid for the Project. A Bidder shall not be entitled

to submit another Bid either individually or in a Consortium, as the case may be.

4.1.2. Notwithstanding anything to the contrary contained in this TENDER, the detailed terms

specified in the draft Contract Agreement shall have overriding effect; provided,

however, that any conditions or obligations imposed on the Bidder hereunder shall

continue to have effect in addition to its obligations under the Contract Agreement.

4.1.4. The Bidder shall submit a power of attorney as per the format at “Appendix 12: Format

of Power of Attorney as Authorized Signatory” authorizing the signatory of the Bidder

to commit to the Bid or as per their Company’s format.

4.1.5. Any condition or qualification or any other stipulation contained in the Bid shall render

the Bid liable to rejection as a non-responsive Bid. The complete Bid shall be without

alterations, interlineations or erasures, except those to accord with instructions issued

by the Company, or as necessary to correct errors made by the Bidder, in which case

such corrections shall be initialled by the person or persons signing the Bid.

4.1.6. The TENDER documents and all attached documents are and shall remain the property

of the Company and are transmitted to the Bidders solely for the purpose of preparation

and the submission of a Bid in accordance herewith. Bidders are to treat all information

as strictly confidential and shall not use it for any purpose other than for preparation

and submission of their Bid. The Company will not return any Bid or any information

provided along therewith.

4.1.8. Bidder shall note that the Price Bid of only those Bidders shall be opened who are found

technically qualified and responsive to GUDC’s Tender terms and conditions including

but not limited to Scope of Works.

Tender Doc. No. GUDC/SOLAR/2026/P06

4.2. Format and Signing of Bid

4.2.1. The Bidder shall provide all the information sought under this TENDER. The Company

will evaluate only those Bids that are received in the required formats and complete in

4.2.2. The Bid shall be typed or written in indelible ink and signed by the authorized signatory

of the Bidder who shall also initial each page, in blue ink. All the alterations, omissions,

additions or any other amendments made to the Bid shall be initialled by the person (s)

signing the Bid.

4.4. Enclosures of the Bid

4.4.2. The below mentioned documents are to be submitted online through scan copies only.

No hard copy submissions except EMD and Tender Fee shall be allowed These

documents shall include:

a) APPENDIX No. 1 to APPENDIX No

b) Document as per Pre-Qualification Criteria 3.2.

Note: EPC contractor shall submit all Appendix as per GUDC’s prescribed format

and GUDC shall have right to revise the format as per future requirement of

4.5. Bid Due Date

4.5.1. Bids should be submitted before the Deadline for Submission of Bid as specified in NIT.

4.5.2. GUDC may, in its sole discretion, extend the Bid due date by issuing an Amendment/

Addendum in accordance with Clause No. 3.6 uniformly for all Bidders.

4.6.1. Bids received by the Company after the specified time on the bid due date shall not be

eligible for consideration and shall be summarily rejected. In case of the unscheduled

holiday being declared on the prescribed closing/opening day of the Bid, the next

working day shall be treated as the scheduled prescribed day of closing/opening of the

Tender Doc. No. GUDC/SOLAR/2026/P06

4.7.1. Information relating to the examination, clarification, evaluation and recommendation

for the Bidders shall not be disclosed to any person who is not officially concerned with

the process or is not a retained professional advisor advising the Company in relation to

or matters arising out of, or concerning the bidding process. The Company will treat all

information, submitted as part of the Bid, in confidence and will require all those who

have access to such material to treat the same in confidence. The Company may not

divulge any such information unless it is directed to do so by any statutory entity that

has the power under law to require its disclosure or is to enforce or assert any right or

privilege of the statutory entity and/ or the Company.

4.8. Correspondence with the Bidder

4.8.1. The Company shall not entertain any correspondence with any Bidder in relation to

acceptance or rejection of any Bid.

4.9. Bid Opening and Evaluation

4.9.1. The Company shall open, examine and evaluate the Bids in accordance with the

provisions set out in this TENDER document.

4.9.2. To facilitate evaluation of Bids, the Company may, at its sole discretion, seek

clarifications in writing from any Bidder regarding its Bid.

4.9.3. After the receipt of Bids the Company may at its discretion send a team of engineers if

necessary, to inspect the engineering facilities, to ensure suitability and satisfactory

working conditions at the Bidder’s works/yards(s) and equipment listed to be used by

the Bidder for the work. The Bidder shall ensure that the aforesaid team shall at all the

times have access to visit and inspect works, equipment etc.

4.10. Tests of Responsiveness

4.10.1. Prior to evaluation of Bids, the Company shall determine whether each Bid is responsive

to the requirements of the TENDER. A Bid shall be considered responsive only if:

I. it is received in the manner prescribed in this TENDER

II. it is accompanied by the requisite Tender Fee and EMD;

III. it is received with all the Enclosures of the Bid as prescribed in the Clause

IV. its Enclosures are received as per the formats specified in Appendix as well as the

Tender Doc. No. GUDC/SOLAR/2026/P06

V. it contains all the information (complete in all respects) as requested in this

Tender (in the same formats as specified);

VI. it complies will all the terms, conditions and provisions specified in this Tender;

VII. it does not contain any conditions or deviations

4.10.2. The Company reserves the right to reject any Bid which is non-responsive and no request

for alteration, modification, substitution or withdrawal shall be entertained by the

Company in respect of such Bid.

4.11. Modification and Withdrawal of Bids

4.11.1. In case any clarifications are sought by the Company after opening of Bids then the

replies of the Bidder should be restricted to the clarifications sought. Any Bidder who

modifies its Bid (including a modification which has the effect of altering the value of its

Financial Proposal) after opening of Bid without specific reference by the Company, shall

render the Bid liable to be rejected without notice and without further reference to the

Bidder and its EMD shall be forfeited.

4.11.2. No Bid may be withdrawn in the interval between the bid due date and the expiration

of the validity period of the Bid. Withdrawal or unsolicited modification of a Bid during

this interval shall result in the Bidder's forfeiture of its Bid Security.

4.12. Evaluation of Bid and selection of Bidder

4.12.1. GUDC will examine the Bid to determine whether they are complete, whether any

computational errors have been made, whether required sureties have been furnished,

whether the documents have been properly signed, and whether the Bid is generally in

4.12.2. Prior to the detailed evaluation, GUDC will determine the substantial responsiveness of

each Bid. A substantially responsive Bid is one which conforms to all the terms and

conditions of the Tender Documents without material deviations. Deviations from or

objections or reservations to critical provisions such as those concerning EMD,

Applicable Law and Taxes and Duties will be deemed to be a material deviation. GUDC’s

determination of a Bid’s responsiveness is to be based on the contents of the Bid itself

without recourse to extrinsic evidence.

Tender Doc. No. GUDC/SOLAR/2026/P06

4.12.3. If the Bid is not substantially responsive, it will be rejected by GUDC and may not

subsequently be made responsive by the Bidder by correction of the nonconformity.

4.12.4. GUDC will evaluate and compare Bids which have been determined to be substantially

4.12.5. A Bidder shall have to quote for entire Grid Connected Solar System altogether as per

4.12.6. Following factors shall be required for evaluation of Bid:

a) The Evaluated Price Bid shall be calculated using the following parameters:

I. Total Contract Price (Supply + Work+ O & M cost) for ground mounted solar

II. Total Contract Price (Supply + Work+ O & M cost) for rooftop solar system (B)

III. Total Contract Price (Supply + Work+ O & M cost) for metal shed solar system

b) The Bid with the Lowest Price Bid Value (in Rs.) in part A, Part B & Part C of Financial

bid shall be considered as L-1 (Rs.) and the Successful Bidder. The Bid with next

highest value shall be considered as L-2 and so on.

4.12.7. In no case, a Bidder shall have the right to claim to be the Successful Bidder for its Bid.

4.12.8. Evaluation of both Techno-Commercial (un-priced) bids and priced bids shall be done

4.12.9. Price Bids of only techno-commercial acceptable bids shall be considered for further

4.13. Contacts during Bid Evaluation

4.13.1. Bids shall be deemed to be under consideration immediately after they are opened and

until such time the Company makes official intimation of award/ rejection to the

Bidders. While the Bids are under consideration, Bidders and/ or their representatives

or other interested parties are advised to refrain from contacting by any means, the

Company and/ or their employees/ representatives on matters related to the Bids under

4.14. Employment of Officials/ Ex-Official of the Company

4.14.1. Bidders are advised not to employ serving the Company. It is also advised not to employ

ex-personnel of the Company within the initial two years period after their retirement/

Tender Doc. No. GUDC/SOLAR/2026/P06

resignation/severance from the service without specific permission of the Company.

The Company may decide not to deal with such firms who fail to comply with the above

4.15. Declaration on Bidder's Relation to GUDC Official

4.15.1. The Bidders are required to certify in prescribed format Appendix 9: Declaration of

Compliance, whether he/they is/are related to any of the Directors/Senior Personnel of

the Company in any of the ways mentioned in the Certificate. It is clarified that any such

affirmative certificate shall not, by itself, prejudice consideration of the Bid. This

certificate must accompany the Bid.

4.16. Letter of Award (“LOA”) and Notification to Proceed

4.16.1. After selection of the Successful Bidder, a Letter of Award (the “LoA”) shall be issued, in

duplicate, to the Successful Bidder. The Successful Bidder shall not be entitled to seek

any deviation from the Contract, as may have been amended by GUDC prior to the bid

submission date.

4.16.2. On issue of the LoA by the Company, authorised representative of the Successful Bidder

shall sign the Contract Agreement within 7 (Seven) days and submit the Bank Guarantee

within the stipulated time.

GUDC will issue NTP after signing of agreement.

4.17. (Deleted)

4.18. Fraudulent Practices

4.18.1. The Bidders may please note that the Company shall not entertain any correspondence

or queries on the status of the Bids received against this TENDER. Bidders are advised

not to depute any of their personnel or agents to visit the Company’s office for making

such inquiries.

4.18.2. Any effort by a Bidder to influence the Company on the Bid evaluation, Bid comparison

or Contract award decision may result in the rejection of the Bidder's Bid.

--- End of Section ---

Tender Doc. No. GUDC/SOLAR/2026/P06

5. Scope of Work

5.1. GENERAL SCOPE OF WORK

The detailed Scope of Work in accordance with this specification is elaborated below. Scope

of Supply & Work includes all design, engineering, manufacture, procurement & supply of

equipment’s and materials, testing at manufacturers works, inspection, testing at works,

packing and forwarding, supply, transportation, receipt, unloading and storage at site

(indoor and outdoor), associated civil works, Module mounting structure, PV Modules,

Cables, Power Conditioning Units/Inverters, ACDB, associated protection system, remote

monitoring system, other associated equipment’s for Solar PV Plants, permits, licenses,

insurance at all stages, erection, testing and commissioning of Grid Connected Photovoltaic

Solar plants and Performance demonstration with associated equipment and materials on

EPC basis for cumulative approx. Total 415 kW (AC) Solar System comprising of 7 locations

of Dholka, Botad, Nadiad and Patdi Municipality as under

Capacity in kW Total

Location Capacity

Ground Solar Metal (kW)

Mounted Rooftop Shed

1 Dholka Metha kui PS 50 0 0

2 Botad Nagar Seva Sadan 0 0 45

3 Botad Talav Kuva Tank 0 40 0

4 Botad Khodiyarnagar WW 50 0 0

5 Nadiad Raniabaug NP Building 0 50 0

6 Patdi Velnath Nagar Headwork 85 0 0

7 Patdi Himmatpur Patiya Headwork 95 0 0

Total 280 90 45

Tender Doc. No. GUDC/SOLAR/2026/P06

In grid-connected solar photo-voltaic (PV) systems, electricity generated is fed into the building as

well as existing equipment’s loads that are connected to the grid through a service connection with

surplus energy being fed into the grid and shortfall being drawn from the grid. Grid-connected solar

PV systems have no battery storage and will not work during grid outage. For buildings with grid-

connected solar PV systems, the service connection meter needs to be of the bidirectional type,

whereby import kWh and export kWh are separately recorded and the Main meter shall be

replaced by Net meter with necessary equipment’s and structures. All the items in the systems

should meet the technical specification and standards mentioned in TENDER.

All materials, fixtures, accessories to be provided shall be of best quality and as per relevant IS

standard. For all concrete works, unless and otherwise specified in soil investigation report,

grade ordinary portland cement.

TMT reinforcement bar of Fe500(D) and structural steel of approved make to be used however

prior approval of the make shall be obtained from GUDC. Structural steel of Hot rolled steel with

minimum Yield stress shall be 250 Mpa or Cold form with minimum yield stress shall be 350 MPa

The EPC Contractor shall be obligated to perform following Scope of Work in relation to the Project.

The Scope of Work of the EPC Contractor includes, but is not limited to, the following:

I. Solar PV modules.

II. Components and parts used in Solar System should conform to the BIS or IEC or other

international specifications, wherever such specifications are available and applicable.

III. Module Mounting Structures (MMS), Mounting frames, structures, array foundation

(Piles in ground / grouting on terrace), earthing grid design, and module inter-

IV. All System Junction boxes.

V. Grid interactive Power Conditioning Unit/Inverters with web based Remote Monitoring

VI. MPPT – Max power point tracking built in the PCU

Tender Doc. No. GUDC/SOLAR/2026/P06

VII. Appropriate AC power evacuation panels or inverters, according to Project Site

requirements, with bus bars (in-built or otherwise) and circuit breakers.

VIII. The nominal steady electrical characteristic of the system are as follows:

a. Single/ Three phase AC at 50 Hertz plus or minus 0.5 Hertz

b. Nominal voltage of 230 V/415V/11KV with +10% to -12.5% variation.

IX. Protection/isolation systems.

X. Power and Control Cables, Cables & connectors of solar grade, which can withstand harsh

environment conditions (high temperature, UV Radiation, rain, dirt, microbes etc for

XI. Earthing system for PV Array, DC power system, lightning protection system.

XII. Data monitoring system with remote monitoring facilities (Completely in scope of

XIII. Transportation, unloading, and loading of all equipment at Project Site.

XIV. Project Management including adherence to all requisite safety practices.

XV. The Project shall be designed and capable of being synchronized and within a frequency

range of 47.5 to 52 Hz and voltage of 230V/415V with single/three phase.

XVI. Short circuit rating: As a part of the detailed design process, the Solar Company shall

calculate the short circuit rating (minimum and maximum), and supply this information

to the Procurer

XVII. Firefighting (fire extinguisher and sand bucket with stand)

XVIII. Making arrangements for module cleaning in the Solar plant area with cleaning

XIX. The existing meter room can be utilized after proper designing and approvals of

GUDC/ULB’s, Inverters, ACDBs, DCDBs and other equipment’s can be kept in the shade

type structure.

XX. The Bidder/ EPC Contractor shall also provide fixed / folding staircase to access building’s

terrace/roof for Solar panel Installation, cleaning and maintenance.

XXI. Land development work of the entire area of the Project premises shall be done as per

Design Basis Report & drawings developed by the CONTRACTOR and approved by GUDC.

Tender Doc. No. GUDC/SOLAR/2026/P06

XXII. CCTV Camera for the reading of meter shall be installed at the meter room such that clear

reading can be seen by camera virtually and provide camera access to GUDC/Concerned

ULB with local storage of minimum 30 days.

XXIII. The formation level of the land development shall be maintained at least 1.5 m above

the High Flood Level (HFL) of the project area.

XXIV. Any work required for filling to achieve the specified formation level shall be arranged,

transported, and placed by the Contractor at his own cost.

XXV. GUDC/ULB Any excess material obtained from cutting of land development work shall be

disposed off outside the plot boundary as directed by.

B. The existing meter room can be utilized after proper designing and approvals of

GUDC/Concern ULB as Inverters, ACDB’s, DCDB’s and other equipment’s can be kept in the

existing building.

C. Installation and Commissioning of various SPV Systems that includes:

I. Confirm feasibility of mentioned Solar PV System capacity along with site visit report,

design and construction of foundations/grouting for holding module mounting structures

without puncturing the roof. If also as per site requirement, the roof needs to be

punctured, the EPC Contractor shall repair the same as per existing roof design and shall

ensure the aestheticity.

II. All the related work/approval for tree trimming/cutting shall be in the scope of the

EPC/Contractor.

III. Maintaining proper drainage of rain water over terrace and ground throughout the

installation area and ensuring installation of proper piping systems on Solar Systems

where there is high probability of water logging. Installation of the same shall be in the

scope of the Nodal EPC Contractor.

IV. Cables to be laid over GI/SS trays not obstructing the movement on the terrace as per

site requirement, installation of insulated clamps at places where the cables need

perfectly horizontal climbing and ensuring that the cables do not run away from the trays

by tying the cables along with the tray using UV protected cable tie(s). – Should be in

Tender Doc. No. GUDC/SOLAR/2026/P06

V. Before commencement of work, the EPC contractor has to obtain all approvals for related

drawings to be obtained from the concerned authorities including GEDA/Gujarat State

Designated Agency, CEI, DISCOM, GUDC etc.

VI. All drawings shall conform to relevant IS/IEC standards.

VII. Special care to be taken while designing all structures for modules to cater to heavy

rainfall, strong winds and earthquake that may be prevalent in the area.

VIII. Serial Number (identification mark) must be permanently marked on all major

components of the SPV systems and shall be fixed with strong adhesive on each

equipment, as approved by GUDC/ TPE AGENCY.

IX. Undertake Pre-commissioning and Commissioning of all supplied equipment.

X. Test running of the grid-connected solar Facility including load trials at Project Site, prior

to handover and commencing energy export for metering.

XI. Grid commissioning; the plant needs to be grid interactive. Interconnection points to be

checked and certified by GUDC/ TPE AGENCY for accuracy and safety.

XII. Installation of Main Meter and Back up Meter shall be done by the EPC Contractor and

the EPC Contractor shall submit drawings for grid interface for each individual power

pack and get approved prior to commencement of work on Project Site. Necessary

approvals and testing of all energy meters shall be as per the standards of CEIG/ DISCOM.

XIII. Commissioning certificate from GEDA/Gujarat State Designated Agency/ DISCOM/GoG

designated authority for the Facility.

D. General Instructions:

XIV. Construction water and construction power shall be the responsibility of the EPC

XV. Security, safety, watch, and ward of all materials at sites shall be the responsibility of the

EPC Contractor.

XVI. The EPC Contractor to obtain comprehensive insurance cover for the Project.

XVII. Liaison with statutory authorities as applicable for all the Project approvals.

XVIII. Expenses for any other works, supply of material, and providing services required for the

successful commissioning and operation of the Facility, but not specifically mentioned in

Tender Doc. No. GUDC/SOLAR/2026/P06

XIX. “Contractor Safety Management” to be strictly complied with by the EPC Contractor

throughout Project activity as per safety rules of concern CEIG.

XX. First-aid medical facilities at the Project Site during construction to be provided by the

EPC Contractor.

XXI. All local labour, employment, and other issues shall be handled independently by the EPC

XXII. The entire responsibility and risk relating towards the workforce working at the Project

Site, and compliance of different statutory regulations like Workman Compensation Act,

ESIC, Factory Act 1948, Contract Labour Regulation, and Abolition Act 1970, Shop and

Establishment Act 1948, and other Statutory regulatory bodies shall solely lie with the

EPC Contractor. The EPC Contractor shall also be solely responsible for payment of

Wages, PF, Bonus, Retrenchment Compensation Leave etc. applicable as per various

statutory regulations to their entire workforce.

E. Statutory Clearances:

The following Statutory Clearances to be obtained by the EPC Contractor from CEIG / DISCOM /

GEDA/Gujarat State Designated Agency as directed by GUDC/ TPE AGENCY:

XXIII. Nodal Agency Approval (GEDA / DISCOM Registration/Gujarat State Designated Agency)

XXIV. Building and Architectural Drawings approvals from relevant authorities, wherever

XXV. Factory inspector approval for drawings, wherever required.

XXVI. Electrical system approval (Electrical Inspector) - CEIG

XXVII. Fire System approval, wherever required

XXVIII. DISCOM Approval (Connectivity & Metering- Main & Check Meter)

XXIX. All equipment, accessories, materials, civil construction & erection works should comply

with statutory requirements and IS standards.

XXX. All statutory requirements for working at the project site like labour registration,

workman compensation policy, ESIC etc. to be complied with by the Contractor before

deployment of resources at the Project Site.

XXXI. All Statutory approval and other Charges (Such as GEDA/Gujarat State Designated Agency

Registration Charges, Meter Testing Charges, System strengthening charges & DISCOM

Tender Doc. No. GUDC/SOLAR/2026/P06

Connectivity Charges, any CEIG Registration Charges, etc) shall be pay by Successful

XXXII. All liaising work shall be in scope of the Successful Bidder.

F. O&M Undertaking:

The EPC Contractor shall give undertaking as per Appendix 29 that for the plant period of 5 (Five)

years all the power packs covered under this project will be operated, maintained and repaired

whenever necessary so that all Units are operative and export maximum possible energy to the

grid. This shall be ensured through undertaking services that include, but are not limited to, the

I. Daily monitoring of plant performance.

II. Supply of all technical, production/operation data and information through a monthly

report along with solar meter reading.

III. Planned visits on a monthly, quarterly, and annual basis for preventative and corrective

maintenance which include, but are not limited to the following:

a. Clean solar panels on weekly basis or as appropriate to get maximum output from

b. Maintaining proper drainage of water over terrace and ground throughout the

installation area, any damage or breakdown caused by water logging is within the

scope of the EPC.

c. Check inverter cabinets (ventilation openings, lighting, leakages in inverter

cabinets and cleaning of filters) and inverter maintenance. EPC Contractor will

keep the necessary spares at the Project Site.

d. Check security and fire protection system.

e. Check parts for corrosion and rectify it.

f. Check the state of tightness of connections, fuses, main junction boxes, etc.

IV. Adequate spares to ensure uninterrupted operation and minimum downtime during the

V. Comprehensive Operation and Maintenance for five (5) years of the Facility up to the

energy meter shall be the responsibility of the EPC Contractor.

VI. Comprehensive Operation and Maintenance for five (5) years during entire life of the

systems shall include supply of spares, consumables, machine breakdown insurance,

Tender Doc. No. GUDC/SOLAR/2026/P06

transpiration, and general comprehensive insurance covering fire, earthquake and

provision of security personnel with the insurance policy which shall be taken by the EPC

contractor in which the GUDC’s as the primary beneficiary. Copies of the Insurance

Policies shall be given to the concerned department, as and when taken/renewed.

VII. All risks associated with lapses or delays in insurance coverage, during the construction

period, shall be at the Total Project Contractor’s cost.

VIII. The EPC Contractor shall ensure efficient operation of the Project and the associated

facilities to achieve the maximum power generation from the Project. (with smoothness

and structure stability and integrity) For this purpose, the EPC Contractor shall engage

the services of adequate number of Engineers and Technicians. The EPC Contractor shall

also attend to all failures, rectifications, breakdown, comprehensive Operation and

Maintenance checks. Daily Management Information System (MIS) reports with

generation and down time analysis data shall be made available to GUDC/Concern ULB

IX. The EPC Contractor should not misuse the area and/or assign responsibility for the safety

of machinery within the premises.

X. Quality Water arrangement for module cleaning should be solely in the scope of the EPC

Contractor. EPC Contractor shall ensure that good quality of water available for the

cleaning of module, If the quality of water not as per module OEM requirement, then

EPC contractor shall arrange Water softener / RO system for module cleaning. (water

Report at change of season)

XI. Electricity arrangement for running the installed pump for cleaning of modules shall be

in the scope of EPC Contractor

5.1.1. During the execution of work, Successful Bidder may propose Design & Detailed Project

for additional AC Capacity other than mentioned (maximum up to 25%) subject to

technical acceptance & administrative approval of GUDC.

During the monthly submission of O&M report, EPC contractor shall submit analysis

details of actual monthly saving in electricity bill of concern ULB in every 3 months

period until completion of 5 years O&M certified by concern ULB

Tender Doc. No. GUDC/SOLAR/2026/P06

5.2. KEY COMPONENTS OF SOLAR SYSTEM

The Key components of Solar Systems are as follows: -

5.2.1. Solar Panels - A solar panel (also solar module, photovoltaic module, or photovoltaic

panel) is a packaged, connected assembly of photovoltaic cells and it is used as a

component of a Solar Systems to generate and supply electricity. Solar panels usually

form a part of a large solar array (multiple panels connected together).

5.2.2. Junction box - An electrical junction box is a container for electrical connections, usually

intended to conceal them from sight and tampering. A small metal or plastic junction

box may form part of an electrical conduit wiring system in a building, or may be buried

in the plaster of a wall, concealed behind an access panel or cast into concrete with only

the lid showing. It also includes terminals for joining wires.

5.2.3. Inverter / Power Control Unit - A solar inverter converts the variable direct current

output of a photovoltaic (PV) solar panel into a utility frequency alternating current that

can be fed into a commercial electrical grid or used by a local, off-grid electrical network.

It is a critical component in a photovoltaic system, allowing the use of ordinary

commercial appliances. Solar inverters have special functions adapted for use with

photovoltaic arrays, including maximum power point tracking and anti-islanding

5.2.4. MCCB/MCB/VCB/ACB - It is an automatically/manually operated electrical switch

designed to protect an electrical circuit from damage caused by overload or short circuit.

Its basic function is to detect a fault condition and, by interrupting continuity, to

immediately discontinue electrical flow.

5.2.5. The proposed Solar Systems be developed across an available roof and Ground Space.

Each Solar System shall have an individual solar PV based power plant (also called power

pack) and each power plant shall be connected to the grid at an appropriate voltage

based on the size of the plant and the availability of the grid.

Tender Doc. No. GUDC/SOLAR/2026/P06

Indicative Schematic Single Line Diagram

5.3. GENERAL SYSTEM DESIGN GUIDELINES

I. Each individual solar PV system shall be developed based on the actual available spaces and

convenience of the GUDC. The broad general guidelines for the development of individual

plants shall follow the following key points:

II. Each individual plant capacity may vary based on Ground/ roof sizes or system sizes.

Individual plant capacity may vary as per the technical feasibility of the location as per the

Tender Doc. No. GUDC/SOLAR/2026/P06

III. Solar plant on ULB’s Terrace, and ground space shall feed AC power to the distribution grid

of the Dholka_Botad_Nadiad and Patdi ULBs as per power evacuation and interconnection

IV. Each plant shall consist of a solar PV array, a fixed solar PV array support structure, junction

box, DC cabling, DC distribution box, inverter and power control unit, AC cabling, AC

distribution box, main distribution panel and meters.

V. The individual Solar PV arrays shall be installed on existing locations of land, buildings &

gardens using fixed solar PV array support structures.

VI. The individual junction boxes and DC cabling shall be installed on the existing locations of

the installed PV power plants.

VII. The individual inverter and the power control units (PCU’s) shall be installed either in a

control room/closed but air ventilated space provided in the respective buildings or next

to the panel arrays in case of large buildings based on considerations like safety, efficiency,

sand loss reduction.

VIII. Individual DC and AC distribution boxes, DC and AC cabling, energy meters and main

distribution panel shall be installed either in the control room or in an appropriate open

space provided in the respective building.

IX. If DG is available in premises than EPC contractor has to provide the protection that must

be able to isolate the Diesel Generator set and PV power plant in case of Grid unavailability.

Necessary arrangement for isolation shall be incorporated in to design as per GUDC/local

DISCOM requirement.

5.4. TECHNICAL SPECIFICATIONS AND STANDARDS

5.4.1. Total 415 kw (AC) at Methi kui PS (50 KW), Dholka Municipality; Nagar Seva Sadan (45

KW), Talav Kuva Tank (40 KW) and Khodiyarnagar WW (50 KW) of Botad Municipality,

Raniabaug NP building (50 KW), Nadiad Municipality, Velnath Nagar Headworks

(85kW) and Himmatpur Patiya Headworks (95 kW), Patdi Municipality

The proposed projects shall be commissioned as per the technical specifications given

Tender Doc. No. GUDC/SOLAR/2026/P06

A Grid-connected Solar System consists of SPV array, Module Mounting Structure, Power

Conditioning Unit (PCU) consisting of Maximum Power Point Tracker (MPPT), Inverter, and

Controls & Protections, interconnect cables and switches. PV Array is mounted on a

suitable structure. Grid tied SPV system is without battery and should be designed with

necessary features to supplement the grid power during daytime. Components and parts

used in the SPV power plants including the PV modules, metallic structures, cables, junction

box, switches, PCUs, DISCOM approved Energy Meters etc., should conform to the BIS or

IEC or international specifications, wherever such specifications are available and

applicable. Solar PV system shall consist of following equipments/components.

Solar PV modules consisting of required number of Mono PERC modules for Solar

I. Grid interactive Power Conditioning Unit with web based Remote Monitoring

II. Module Mounting Structures

III. Junction Boxes.

IV. Earthing and lightening protections.

V. IR/UV protected PVC Cables, pipes, and accessories.

VI. Civil Works, etc.

1) SOLAR PHOTOVOLTAIC MODULES

a. The Solar PV modules used must qualify to the latest edition of IEC PV module

qualification test or equivalent BIS standards Crystalline Silicon Solar Cell Modules IEC

61215 and IS14286. In addition, the modules must conform to latest edition of IEC/IS

61730 Part 1 -requirements for construction & Part 2 – requirements for testing, for

safety qualification or equivalent IS.

b. For the PV modules to be used in a highly corrosive atmosphere throughout their lifetime,

they must qualify to IEC/IS

c. All modules shall be certified as per the IEC 62804 Certified PV modules should be PID

free, documents for the same should be submitted with conditions of the PID test should

be for a humidity of 85 % and a cell temperature of 85 °C at 1000 Volts, IEC

Tender Doc. No. GUDC/SOLAR/2026/P06

d. The certified Bill of Material (BOM) to be used in the PV Modules should be the same as

used during the IEC certification of reference PV Module certified by renowned agency

like TUV, UL, etc.

f. The total solar PV array capacity (kWp) should not be less than allocated capacity (kW)

and should comprise of solar Mono-PERC modules of minimum 540 Wp and above

wattage with minimum 72 –cell configuration. Module capacity less than 540 Wp shall

not be accepted.

g. Efficiency of PV Module shall be more than 19% for Mono-PERC.

h. Temperature co-efficient of power (Pmax) shall be -0.40%/°C or better.

i. Protective devices against surges at the PV module shall be provided. Low voltage drop

bypass diodes shall be provided.

j. PV modules must be tested and approved by one of the IEC/MNRE authorized test

centers. Bidder shall submit Type test report as mentioned in the Tender from approved

IEC / MNRE authorized test lab. GUDC/ TPE AGENCY may depute their engineer for

material inspection at OEM factory prior to dispatch.

k. The module frame shall be made of corrosion resistant materials, preferably having

anodized aluminium.

l. SPV module shall have module safety class-II and should be highly reliable, light weight

and must have a service life of more than 25 years

m. The bidder shall carefully design & accommodate requisite numbers of the modules to

achieve the rated power in his bid.

n. The rated output power of any supplied module shall have tolerance up to + 3%. No

negative tolerance in the rated capacity of solar PV module is allowed.

o. The module mismatch losses for modules connected to an inverter should be less than

p. The SPV module shall be made up of high transmissivity glass & front surface shall give

high encapsulation gain and the module shall consist of impact resistance, low iron and

high transmission toughened glass. The module frame shall be made of corrosion

resistant material, which shall be electrically compatible with the structural material used

for mounting the modules.

Tender Doc. No. GUDC/SOLAR/2026/P06

q. All materials used for manufacturing solar PV module shall have a proven history of

reliability and stable operation in external applications. It shall perform satisfactorily in

relative humidity up to 85% with temperature between -40°C to +85°C and shall

withstand adverse climatic conditions, such as high-speed wind, blow with dust, sand

particles etc for wind speed of 180 km/hr on the surface of the panel as per IEC

r. Modules only with the same rating and manufacturer shall be connected to inverter.

Modules shall compulsorily bear following information in the form of ID encapsulated

with solar cell in the manner so as not to cast shadow on the active area and to be clearly

visible from the top.

s. The SPV modules shall have suitable encapsulation and sealing arrangements to protect

the silicon cells from environment. The encapsulation material must ensure moisture

protection throughout the life of the solar module, and be resistant to degradation from

UV radiation, humidity, and temperature variations. The encapsulation arrangement

shall ensure complete moisture proofing for the entire life of solar modules.

t. The peak-power point voltage and the peak-power point current of any supplied module

and/or any module string (series connected modules) shall not vary by more than 2 (two)

per cent from the respective arithmetic means for all modules and/or for all module

strings, as the case may be.

u. The module shall be provided with a junction box with provision of sealed type and with

arrangement for provision of min. 3 by-pass diode. The box shall have hinged, weather

proof lid with captive screws and cable gland entry points or may be of sealed type and

v. IV curves at STC for each PV module should be provided by bidder.

w. GUDC or its authorized representative reserves the right to inspect the modules at the

manufacturer’s site prior to dispatch.

x. Plants installed in high dust geographies in Gujarat must have the solar modules tested

with relevant dust standards (Applicable standard would be IEC 60068-2 or equivalent).

y. Before finalisation of Solar PV Module Vendor, QAP along with Grade A PV Cell shall be

approved by GUDC.

Tender Doc. No. GUDC/SOLAR/2026/P06

z. Modules deployed must use a RF identification tag. The following information must be

mentioned in the RFID used on each module. RFID tag shall be inside laminate only and

must contain following information.

I. Name of the manufacturer of the PV module

II. Name of the manufacturer of Solar Cells.

III. Month & year of the manufacture (separate for solar cells and modules)

IV. Country of origin (separately for solar cells and module)

V. I-V curve for the module Wattage, Im, Vm and FF for the module

VI. Unique Serial No and Model No of the module

VII. Date and year of obtaining IEC PV module qualification certificate.

VIII. Name of the test lab issuing IEC certificate.

IX. Other relevant information on traceability of solar cells and module as per ISO

1. Material Warranty:

I. Material Warranty is defined as: The manufacturer should warrant the Solar

Module(s) to be free from the defects (including Potential-induced degradation

[PID] effect) and/or failures specified below for a period not less than twenty-

five (25) years from the date of sale to the original customer ("Customer")

II. Defects and/or failures due to manufacturing

III. Defects and/or failures due to quality of materials

IV. Nonconformity to specifications due to faulty manufacturing and/or inspection

processes. If the solar Module(s) fails to conform to this warranty, the

manufacturer will repair or replace the solar module(s), at the Owners sole

2. Performance Warranty:

I. The predicted electrical degradation of power generated not exceeding 20% of

the minimum rated power over the 25-year period and not more than 10% after

ten years period of the full rated original output. Degradation in first year shall

be allowed up to 3% for mono crystalline and in any subsequent year

degradation shall not be more than 0.7 % per annum.

Tender Doc. No. GUDC/SOLAR/2026/P06

II. The manufacturer should warrant the output of Solar Module(s) If, Module(s)

fail(s) to exhibit such power output in prescribed time span, the Contractor will

either deliver additional PV Module(s) to replace the missing power output with

no change in area used or repair or replace the PV Module(s) with no change in

area of roof used at GUDC’s sole option. Total are available from ULB’s premises

is fixed and the bidder shall design the plant so that in this case he has enough

space to accommodate additional capacity.

BB. Pre-dispatch Inspection of PV Modules at Manufacturing Facility:

The Contractor shall provide pre-dispatch inspection call to GUDC for inspection at

manufacturer works for PV Modules, as per GUDC approved drawings like GTP and

QAP. Prior to inviting GUDC for pre - dispatch inspection, vendor shall submit

detailed quality assurance plan (QAP) for GUDC approval. QAP shall include type

tests, routine tests, factory acceptance tests, sampling plan, applicable standards

etc. For all bought out items, test certificates as per relevant standards shall be

submitted along with factory acceptance test reports. The bidder shall bear the

lodging, boarding, accommodation and traveling charges of GUDC for PDI. After the

inspection, complete set of test reports shall be submitted to GUDCL for dispatch

clearance. EPC contractor shall not dispatch PV module to site without getting

written dispatch instruction from GUDCL.

CC. Bidder Shall Provide the solar module as per latest circular issued by MNRE

(Ministry of New and Renewable Energy) for ALMM (Approved Models &

Manufacturer of Solar Photovoltaic Modules) as per bid due date.

2) MODULE MOUNTING STRUCTURE (ARRAY STRUCTURE)

Scope of work under this section covers the provision of labour, tools, materials and

performance of work necessary for the design, manufacture, quality assurance, quality

control, shop assembly, shop testing, delivery at site, and preservation, installation,

commissioning, performance and acceptance testing of Module Mounting Structures as per

the specifications here under, complete with all auxiliaries, accessories, spare parts and

warranting a trouble free safe operation of the installation.

Tender Doc. No. GUDC/SOLAR/2026/P06

The Module Mounting Structure (MMS) should be designed for an optimum seasonal / fixed

tilt angle, so as to meet the offered NEEGG. The angle should be systematically optimized

for maximum energy generation throughout the year based on location and local weather

variables for each module technology. Bidder has to carry out proper shadow analysis of

proposed area to meet offered NEEGG. MMS structure design is combination of two

elements named Substructure (Foundation) and Super structure. Bidder must submit the all

the quality test documents and test certificates complying with the requirement of the

structure. Suitable provision for mounting DWC pipes for routing DC cable from Array to

Inverter must be provided (Separate DWC Pipe for Positive and Negative DC Cables as

mentioned elsewhere in this tender document).

1. Considerations for Ground Mounted/Car Parking Structure Installation

a) Below mentioned consideration are to be kept in mind by contractor for design of

concrete foundations for MMS.

I. Prior to commencement of excavation works for the solar project, the site shall

be systematically prepared to ensure a stable and safe working platform. All

vegetation, debris, boulders, and unsuitable material shall be cleared from the

area, and the topsoil shall be removed to the required depth and stacked

separately for subsequent reuse in landscaping or approved backfilling works.

Existing underground utilities, pipelines, and drainage lines shall be identified,

marked, and protected to avoid any damage during construction activities. The

ground shall then be graded and approximately levelled using suitable

equipment, followed by proper compaction to achieve the desired stability and

to minimize the risk of settlement. Adequate temporary access roads and

surface drainage arrangements shall be provided to facilitate the movement

of machinery and to prevent waterlogging at site. Site boundaries shall be

clearly demarcated and secured with fencing, markers, and safety signage to

restrict unauthorized entry. No excavation shall commence until written

approval from GUDC has been obtained and formally recorded. A detailed

survey shall be conducted to verify reduced levels and layout lines prior to

starting any foundation or structural excavation works.

Tender Doc. No. GUDC/SOLAR/2026/P06

II. Excavation/Auguring shall be done such that it shall not damage existing

structures. If during course of time if it is damaged, then contractor has to

repair it at their own cost.

III. Soil investigation shall be carried for finalising the foundation requirements.

IV. Depth of Pile or Open Foundation shall be done as per Soil Investigation report.

Any treatment required to foundation shall be done as per soil investigation

V. Loose material shall be disposed of out of the plant premises.

VI. Before starting concreting work of foundations, EPC has to get approval from

GUDC or its designated agency in “RFI” format. For getting approval EPC has to

give RFI at least 3 days ago from the concreting day. If EPC fails to do so, the

whole work shall be considered as “null” work irrespective of any testing

results. This kind of “null” work shall not be paid and contractor has to

dismantle all works at its own cost and re-work shall be done after approval.

All debris and dismantle material shall be disposed of out of plant premises at

VII. Concrete work shall be carried out as per IS 456-2000 with minimum cement

content of 350 Kg/Cum.Min. M25

VIII. Reinforcement shall be provided as per codal provision. (FE 500D)

IX. During and after casting, compaction shall be ensured by using mechanical

vibrators to achieve the required density and eliminate voids.

X. Height of the Pile or Open foundation shall be minimum 150 mm above the

XII. Due to space constraints if installation is proposed on lawn area, in that case

the foundation may taken below natural ground level. Also, after completion

of installation pits shall be backfilled and maintained such that it shall match

with surrounding lawn area.

XIII. White wash (Weather proof paint with 2 coats of primer) on exposed concrete

surface shall be matched with existing structure within the premises to

maintain the aesthetic appearance of the plant.

Tender Doc. No. GUDC/SOLAR/2026/P06

XIV. All required test like material test, Cube test & compaction test to be carried

out as per relevant IS Codes, for quality assurance and strength verification.

XV. Curing of all piles or open foundations shall be done thrice a day and be

maintained for a period of seven days from the date of casting

XVI. All design and drawing are to be submitted for approval in Editable, AutoCAD,

STAAD file, PDF format to Company or its designated agency before starting

the work. The submitted drawing and design shall be certified and stamped by

licensed structure designer.

XVII. Before starting any work below Ground level, contractor has to get approval

from GUDC or its designated agency of previous work completion. i.e. After

ground levelling and proper compacting earth, approval is needed before

starting excavation work.

XVIII. Contractor is responsible for getting approval at every stage in working below

ground level. If contractor fails to do so, penalty will be charged by GUDC and

all the work which completed without permission shall not be paid.

XIX. Design of the foundation shall be done for 25 years life such that structure

strength shall not reduce for designed life.

XX. The Contractor has to ensure and arrange the necessary/ essential

requirement for all activities during night time.

XXI. The pile casting work shall be carried out only in the presence of GUDC / PMC

representative.

XXII. The Contractor shall notify the GUDC/PMC in writing at least seven (7) days in

advance prior to the commencement of any pile casting activity, to enable their

representative to remain present during the work.

XXIII. The pile casting work shall be carried out only in the presence of GUDC / PMC

representative.

XXIV. The Contractor shall notify the GUDC/PMC in writing at least seven (7) days in

advance prior to the commencement of any pile casting activity, to enable their

representative to remain present during the work.

XXV. In the event the Contractor fails to provide such prior intimation or executes

the pile casting work without the knowledge of GUDC/PMC, the GUDC/PMC

Tender Doc. No. GUDC/SOLAR/2026/P06

shall reserve the right, at its sole discretion, to reject the executed work. In

such case, the Contractor shall, at their own cost and risk, demolish the

rejected work and re-execute the same in the presence of GUDC/PMC’s

representative, without any additional cost or time implication to the Client.

b) Below mentioned consideration are to be kept in mind by contractor for design of

Superstructure for MMS:

I. The MMS should be safe, and designed to allow easy replacement of any

module and easy access to the O&M staff. It should be designed for simple

mechanical and electrical installation, should support Solar PV modules at a

given orientation, absorb and transfer the mechanical loads to the ground

properly and there should be no requirement of welding or complex machinery

II. Irrespective of design, none of the components shall be less than 2.5 mm in

III. The array structure shall be so designed that it will occupy minimum space

without sacrificing the output from Solar PV panels at the same time it will

withstand design wind speed as per wind zone of the plant location.

IV. It shall support Solar PV modules at a given orientation, absorb and transfer

the mechanical loads to the ground properly. There shall be no requirement of

welding or complex machinery at site and is strictly not allowed.

V. The frames and leg assemblies of the array structures shall be made of hot dip

galvanized steel per ASTM A123.

VI. All design and drawing are required to be submitted in Editable, AutoCAD,

STAAD file & PDF format for approval to Company or its designated agency

before starting of work.

VII. The submitted drawing and design shall be certified and stamped by licensed

structure designer.

VIII. Design of the super structure (Mounting steel structure) shall be done for

years life such that structure strength shall not reduce for designed life.

IX. In case of hot dip galvanization of structures, specific requirement for thickness

of galvanization should be at least minimum 100 microns at any point of the

Tender Doc. No. GUDC/SOLAR/2026/P06

galvanized structure. No averaging is allowed for measuring the thickness of

galvanization. Inner side galvanization with same specification of any hollow

components of module mounting structure is mandatory Galvanised structure

is required to be sent to third party laboratory test for confirmation of the mass

of zinc applied on structure.

X. All nuts and bolts (fasteners) shall be made up of very good quality stainless

steel of grade SS 304 required for module fixing. Other fasteners shall be of

HDG of 8.8 grade.

XII. Modules shall be clamped / bolted with the structure properly. The material of

construction of clamps/bolts shall be Al / Steel. Clamps / bolts shall be designed

in such a way so as not to cast any shadow on the active part of a module.

XIII. Module mounting structures shall also be earthed through proper separate

XIV. Factor of safety shall be taken as per relevant IS codes criteria for all design

XV. For multiple module mounting structures located in a single row, the alignment

of all modules shall be within an error limit of 10 mm in vertical / horizontal

XVI. The Module Mounting Structure design shall be certified by a structural

engineer and it is mandatory.

XVII. Minimum clearance between finished ground level and lowest edge of

module shall be 750 mm for Ground Mounted System.

XVIII. Minimum clearance between finished ground level and lowest edge of

module shall be 4000 mm for Car parking system.

XIX. Minimum clearance between finished ground level and lowest edge of

module shall be 300 mm for Roof Top System.

XX. All the cables were aesthetically tied to module mounting structure.

XXI. String Cables should be passes from Pipes (DWC cable conduits) and Cable-ties

shall be used to hold and guide the Pipes (cables/wires) from the modules to

inverters or junction boxes.

Tender Doc. No. GUDC/SOLAR/2026/P06

XXII. AC cables shall be laid in Underground cables with sand and brick layer and

then backfilled with excavated material or it is to be laid in UPVC flexible pipe

and the same pipe is covered with HDG cable tray. For laying the cable

wherever required to dismantling and repairing the structure is to be done by

contractor at their own cost.

XXIII. The Contractor has to ensure and arrange sufficient lighting arrangement for

all activities during night time. (Work in night shall be strictly restricted. If in

case it is mandatory, then prior written approval is required from GUDC.)

Tender Doc. No. GUDC/SOLAR/2026/P06

Indicative Ground mounted Solar PV Module Mounting Structure Design

2. Consideration for Solar PV installation on Roof Top (RCC)/Metal Shade

a) Below mentioned consideration are to be kept in mind by contractor for design

of total roof top installation.

I. Contractor has to consider that maximum permissible load of total

proposed installation on the RCC as well as Sheet metal roof shall not be

more than 90 kg/sqmtr and 25 kg/Sqmtr respectively.

II. Contractor can use Precast Reinforced Blocks and concrete foundations,

anchor fasteners for stability of the proposed systems. For using anchor

fastener permission from GUDC/Concern ULB is required. GUDC/Concern

ULB has right to reject or accept the proposal of using anchor fastener on

RCC roof and it shall be binding to contractor.

III. In case of using anchor fasteners Method Company’s (GUDC/ULB’s)

decision shall be binding on contractor.

IV. In case of installation on sheet metal roof, contractor has to ensure that

installation is water tight. Contractor has to fill the hole drilled in sheet

metal for anchor fastener with proper sealing agent.

V. In case of installation on sheet metal, contractor has to ensure the strength,

location and spacing of underlying the structural members.

VI. In case of installation on sheet metal contractor has to follow PPE

VII. Contractor has to repair all damaged structure after completion of the

installations as per existing structure.

VIII. Curing of concrete foundations shall be done thrice a day and be

maintained for a period of seven days from the date of casting. Concrete

foundation is to be painted through White

IX. All design and drawing are to be submitted for approval in Editable,

AutoCAD, STAAD file & PDF format to Company or its designated agency

before starting the work. The submitted drawing and design shall be

certified and stamped by licensed structure designer.

X. Design of the foundation and structure shall be done for 25 years life such

that structure strength shall not reduce for designed life.

Tender Doc. No. GUDC/SOLAR/2026/P06

XI. The Contractor has to ensure and arrange sufficient lighting arrangement

for all activities during night time. (Work in night shall be strictly restricted.

If in case it is mandatory, then prior written approval is required from

XII. Structure shall be earthed separately by maintenance free earthing.

XIII. Factor of safety shall be considered as 1.5 for designing the system.

b) Below mentioned consideration are to be kept in mind by contractor for design

of Superstructure for MMS:

I. The MMS should be safe, and designed to allow easy replacement of any

module and easy access to the O&M staff. It should be designed for simple

mechanical and electrical installation, should support Solar PV modules at

a given orientation, absorb and transfer the mechanical loads to the

ground properly and there should be no requirement of welding or

complex machinery at site.

II. Irrespective of design, none of the components shall be less than 2.5 mm

III. The array structure shall be so designed that it will occupy minimum space

without sacrificing the output from Solar PV panels at the same time it will

withstand design wind speed as per wind zone of the plant location.

IV. It shall support Solar PV modules at a given orientation, absorb and

transfer the mechanical loads to the ground properly. There shall be no

requirement of welding or complex machinery at site and is strictly not

V. The frames and leg assemblies of the array structures shall be made of hot

dip galvanized steel per ASTM A123.

VI. All design and drawing are required to be submitted in Editable, AutoCAD,

STAAD file & PDF format for approval to Company or its designated agency

before starting of work. The submitted drawing and design shall be

certified and stamped by licensed structure designer.

VII. Design of the super structure (Mounting steel structure) shall be done for

25 years life such that structure strength shall not reduce for designed life.

Tender Doc. No. GUDC/SOLAR/2026/P06

VIII. In case of galvanization of structures, specific requirement for thickness

of galvanization should be at least minimum 80(100) microns at any point

of the galvanized structure. No averaging is allowed for measuring the

thickness of galvanization. Inner side galvanization with same

specification of any hollow components of module mounting structure is

mandatory Galvanised structure is required to be sent to third party

laboratory test for confirmation of the mass of zinc applied on structure.

IX. All nuts and bolts (fasteners) shall be made up of very good quality

stainless steel of grade SS 304 required for module fixing. Other fasteners

shall be of HDG of 8.8 grade.

X. Modules shall be clamped / bolted with the structure properly. The

material of construction of clamps/bolts shall be Al / Steel. Clamps / bolts

shall be designed in such a way so as not to cast any shadow on the active

part of a module.

XI. Module mounting structures shall also be earthed through proper

separate earthing

XII. Factor of safety shall not be taken less than 1.5 for all design calculation.

XIII. For multiple module mounting structures located in a single row, the

alignment of all modules shall be within an error limit of 10 mm in vertical

/ horizontal line.

XIV. The Module Mounting Structure design shall be certified by a structural

engineer and it is mandatory.

XV. Minimum clearance between RCC roof and lowest edge of module shall

be minimum 300 mm.

XVI. Irrespective of design, none of the components shall be less than 2 mm in

XVII. All the cables were aesthetically tied to module mounting structure

XVIII. All AC and DC cables shall be laid in HDG cable tray. All string cables shall

be passed from UPVC and DWG pipes.

XIX. The Contractor has to ensure and arrange sufficient lighting arrangement

for all activities during night time.

Tender Doc. No. GUDC/SOLAR/2026/P06

Indicative Rooftop Solar PV Module Mounting Structure Design

Tender Doc. No. GUDC/SOLAR/2026/P06

3. Pre-dispatch Inspection of MMS:

The Contractor shall provide pre-dispatch inspection call to GUDC for inspection at

manufacturer works, as per GUDC approved drawings, for all fabricated items such

as steel structure members, galvanization process etc. Prior to inviting GUDC for pre

- dispatch inspection, vendor shall submit detailed quality assurance plan (QAP)

before manufacturing for GUDC approval. QAP shall include type tests, routine tests,

factory acceptance tests, sampling plan, applicable standards etc. The bidder shall

bear the lodging, boarding, accommodation and traveling charges of GUDC for PDI.

After the inspection, complete set of test reports shall be submitted. For all bought

out items, test certificates as per relevant standards shall be submitted. EPC

contractor shall not dispatch MMS to site without getting written dispatch

instruction from GUDCL

3) JUNCTION BOXES (JBS)

I. The junction boxes are to be provided in the PV array for termination of connecting

cables. The Junction Boxes (JBs) shall be made of GRP/FRP/Powder Coated

Aluminium /cast aluminium alloy with full dust, water & vermin proof

arrangement. All wires/cables must be terminated through cable lugs. The JBs shall

be such that input & output termination can be made through suitable cable

II. Copper bus bars/terminal blocks housed in the junction box with suitable

termination threads Conforming to IP67 standard and IEC 62208 Hinged door with

EPDM rubber gasket to prevent water entry. Single / double compression cable

glands. Provision of earthing’s. It should be placed at suitable height or above for

ease of accessibility.

III. The array junction box will also have suitable surge protection devices installed in

IV. The junction boxes should be able to combine groups of modules into independent

charging sub- arrays.

V. Each Junction Box shall have High quality Suitable Capacity Min. Type -2 SPDs,

Fuses and connectors. The Junction Boxes shall have suitable arrangement of

Tender Doc. No. GUDC/SOLAR/2026/P06

monitoring and disconnection for each of the groups. If Inverter having built-in

adequate protection such as SPDs, Over Current Protections, Monitoring, DC

Disconnector etc, then DC junction box is not required. ACDB shall be mandatory

for all protection mentioned in the Tender except SPD if it is built-in the Inverter.

VI. Suitable markings shall be provided on the bus bar & All the panels for easy

identification and the cable ferrules must be fitted at the cable termination points

for identification

VII. All fuses shall have DIN rail mountable fuse holders and shall be housed in

thermoplastic IP 67 enclosures with transparent covers.

VIII. It should provide a test point for each sub- group for quick fault location to provide

group array isolation.

IX. The current carrying rating of the junction box shall be suitable with adequate

safety factor to inter connect the Solar PV array.

X. The junction boxes shall have suitable cable entry points fitted with cable glands of

appropriate size for both incoming & outgoing cables

XI. Suitable markings shall be provided on the bus bar for easy identification & cable

ferules shall be fitted at the cable termination points for identification.

XII. Junction boxes and solar panel terminal boxes shall be of the thermo plastic type

with IP 67 protection for outdoor use and IP 64 protection for indoor use.

XIII. Cable terminations shall be taken through thermo-plastic cable glands. Cable

ferrules shall be fitted at the cable termination points for identification.

4) DC DISTRIBUTION BOARD

I. DC Distribution panel to receive the DC output from the array field.

II. DC DPBs shall have sheet from enclosure of dust & vermin proof conform to IP

protection. The bus bars are made of copper of desired size. Suitable capacity

MCBs/MCCB/ Fuses shall be provided for controlling the DC power output to the

PCU along with necessary surge protection devises (SPD’s).

5) AC DISTRIBUTION PANEL BOARD

I. AC Distribution Panel Board (DPB) shall control the AC power from PCU/ inverter,

and should have necessary surge arrestors. Interconnection from ACDB to mains

Tender Doc. No. GUDC/SOLAR/2026/P06

at LT Bus bar while in grid tied mode, the bus bars are made of copper of desired

II. All switches and the circuit breakers, connectors should conform to IEC 60947, part

I, II and III/ IS60947 part I, II and III.

III. ACDB shall be provided with MCCB, Instrument transformers, Multifunction

meters, indication lamps, 5/15A Socket, spare terminal and Disconnectors

adequate quantity has to be maintain by EPC contactor to use during O&M period,

IV. The changeover switches, cabling work should be undertaken by the bidder as part

of the project.

V. All the Panel’s shall be metal clad, totally enclosed, rigid, wall mounted/floor

mounted, air - insulated, cubical type suitable for operation on three phase / single

phase, 415 or 230 volts, 50 Hz

VI. The panels shall be designed for minimum expected ambient temperature of

degrees Celsius, 85 present humidity and dusty weather.

VII. All indoor panels will have protection of IP 54 or better All outdoor panels will have

protection of IP

VIII. Shall be of Metal Sheet with powder Coating

IX. Should conform to Indian Electricity Act and rules (till last amendment).

X. All the 415 AC or 230 volts devices / equipment like bus support insulators, circuit

breakers, SPDs, VTs etc., multifunction meters, mounted inside the switchgear

shall be suitable for continuous operation and satisfactory performance under the

following supply conditions;

viii- 1 Variation in supply voltage +/- 10 %

Viii- 2 Variation in supply frequency +/- 3 Hz

XI. Panel shall be totally enclosed dust and vermin proof, best quality synthetic /

neoprene rubber gasket shall be provided around doors covers and other cut-outs.

XII. All Cable Entry Shall be from Bottom Only. Gland plate shall be provided on ACDB

compartment with required holes and spare holes. Party shall supply best quality

grommet to plug the holes.

Tender Doc. No. GUDC/SOLAR/2026/P06

XIII. Panel shall have excellent aesthetic look and finish.

XIV. Two nos of earthing bolts shall be provided on each side of panel.

XV. Holes on Gland plate shall be provided with proper grommets.

XVI. Finish and Surface Preparation:

a. Surface is to be prepared with Sand / Shot Blasting.

b. Epoxy Power coating (Exterior and interior) after seven tank process with

minimum thickness of 70 microns.

c. Exterior – RAL

d. Interior – White (Preferred) or RAL

XVII. All doors shall be provided with adequate number of best quality cam type locking

knobs. Concealed Hinges of good quality shall be provided. Location of Hinges

(right or left side) shall be as per GA drawing. Doors shall be removal type.

a. All labels shall comprise white letters engraved on Black background.

b. Labels shall be made of 3 ply lamicoid or Anodized Aluminium.

c. Size of lettering shall be minimum 50 mm for panel description and designation.

(As shown in GA Drawing)

d. Size of lettering shall be minimum 5 mm for component designation.

e. Live terminal shall be protected with proper insulating front barrier.

f. CAUTION, Name plate “CAUTION LIVE TERMINAL “Shall be provided at all points

where the terminals are likely to remain live and isolation is required before

g. 415 V Hazard Board shall be provided on the panel appropriately.

6) PCU/ARRAY SIZE RATIO

I. The combined wattage of all inverters should not be less than rated capacity of

power plant under STC. However extra DC capacity can be installed by EPC

Contractor to achieve higher CUF within the limit of the land/roofs/terrace of the

proposed office premises/buildings.

II. Maximum power point tracker shall be integrated in the PCU/inverter to maximize

energy drawn from the array.

Tender Doc. No. GUDC/SOLAR/2026/P06

7) Power Conditioning Unit (PCU) / Grid-Tied Inverter

The Contractor has to provide sufficient information to the satisfaction of GUDC and

approval, before placing the final order for PCU(s)/Inverter(s). Power Conditioning Unit

(PCU)/Inverter shall consist of an electronic inverter with latest technology available in the

market along with associated control, protection and data logging devices.

As SPV array produce direct current electricity, it is necessary to convert this direct current

into alternating current and adjust the voltage levels to match the grid voltage. Conversion

shall be achieved using an electronic Inverter and the associated control and protection

devices. All these components of the system are termed the “Power Conditioning Unit

(PCU)”. In addition, the PCU shall also house MPPT (Maximum Power Point Tracker), an

interface between Solar PV array & the Inverter, to maximize Solar PV array energy input

into the System. Inverter output should be compatible with the grid frequency.

Typical technical features of the inverter for Solar System shall be as follows:

Sr. Description Specification

1 Switching devices IGBT

2 Control Microprocessor /DSP

3 Nominal AC output voltage and 415V, 3 Phase, 50 Hz (In case single phase

frequency inverters are offered, suitable arrangement for

balancing the phases must be made.)

4 Output frequency 50 Hz

5 Grid Frequency Synchronization (+) 3 Hz or more

6 Ambient temperature considered (-) 20° C to (+) 50° C

7 Humidity 95 % Non-condensing

8 Protection of Enclosure IP-54 (Minimum) for indoor

IP-67 (Minimum) for outdoor

9 Grid Frequency Tolerance range (+) 3 or more

10 Grid Voltage tolerance (-) 20% & (+) 15 %

11 No-load losses Less than 1% of rated power

12 Inverter Efficiency (Minimum) ≥ 98%

13 MMPT Efficiency > 90%

14 THD at rated power < 3%

15 PF 0.8 lag to 0.8 lead

16 LED/LCD Display: Indications Display shall indicate system functional

parameters and protection functional

indicator i.e. Inverter ON, Grid ON, Inverter

Tender Doc. No. GUDC/SOLAR/2026/P06

Under/Overvoltage, Inverter Overload,

Inverter Over Temperature, etc.

17 Data monitor and display controls Communication Port for Serial

Communication RS-485 using Modbus RTU or

Modbus TCP Protocol

Ethernet Port for Web based remote

Monitoring System

18 Protections Input over voltage

Low/high frequency

AC Short circuit Protection

Under/over output voltage

Over Temperature

Grid Input under voltage / over voltage with

DC disconnect device

DC reverse polarity

Anti-Islanding Protection as per the standard

Surge Protection

Insulation Resistance Protection

19 Standards IEC 62103: Electronic equipment for use in

power installations.

IEC 62109 Part 1 &

Galvanic Isolation at input & output through

IEC 61727/ VDE 0126 For Grid Interface

IEC 61683 for Efficiency of PCU

IEC 60068 for Environment Testing

IEC 62116 for Anti Islanding

IEEE 519-1992 for Harmonic Control in Electric

20 Display on Front Panel Instantaneous & cumulative array power (W),

Instantaneous &cumulative output power (W)

Cumulative energy (Wh),

DC voltage (V),

DC current (A),

AC voltage (V) (all three phases)

AC frequency (Hz),

AC current (A),

Cumulative hours of operation (h),

Tender Doc. No. GUDC/SOLAR/2026/P06

Daily energy produced

Ambient temperature,

Solar radiation.

Data logging facility

I. Three phase PCU/ inverter shall be used with each power plant system.

II. PCU/inverter shall be capable of complete automatic operation including wake-up,

synchronization & shutdown.

III. The output of power factor of PCU inverter is suitable for all voltage ranges or sink

of reactive power; inverter should have internal protection arrangement against

any sustainable fault in feeder line and against the lightning on feeder.

IV. Built-in meter and data logger to monitor plant performance through external

computer shall be provided.

V. DC Overloading of PCU/inverter is allowed up to 10% of the rated capacity of the

inverter provided no loss in efficiency. OEM specification or recommendation for

% DC overloading of Inverter shall be submitted by the Contractor.

VI. The up-time of PCU/Inverter should be of 99% in a year, in case of failing to achieve

this due to failure of any component of inverter the Contractor shall either replace

the inverter or the component at his own cost.

VII. Anti-islanding (Protection against Islanding of grid): The PCU shall have anti

islanding protection in conformity to IEEE 1547/UL 1741/ IEC 62116 or equivalent

VIII. In PCU/Inverter, there shall be a direct current isolation provided at the output by

means of a suitable isolating transformer. If Isolation Transformer is not

incorporated with PCU/Inverter, there shall be a separate Isolation Transformer of

suitable rating provided at the output side of PCU/PCU units for capacity more than

100 kW if made mandatory by DISCOM.

IX. The PCU/ inverter generated harmonics, flicker, DC injection limits, Voltage Range,

Frequency Range and Anti-Islanding measures at the point of connection to the

utility services should follow the latest CEA (Technical Standards for Connectivity

Distribution Generation Resources) Guidelines.

Tender Doc. No. GUDC/SOLAR/2026/P06

X. The power conditioning units / inverters should comply with applicable IEC/

equivalent BIS standard for efficiency measurements and environmental tests as

per standard codes IEC 61683/IS 61683 and IEC 60068- 2 (1,2,14,30) /Equivalent

XI. The MPPT units environmental testing should qualify IEC 60068-2 (1, 2, 14, 30)

/Equivalent BIS std. The junction boxes/ enclosures should be IP 67 (for outdoor)/

IP 54(indoor) and as per IEC 529 specifications.

XII. The PCU/ inverters shall be tested from the MNRE approved test centres / NABL

/BIS /IEC accredited testing- calibration laboratories. In case of imported power

conditioning units, these should be approved by international test houses.

XIII. Grid Connectivity: Relevant CERC/GERC regulations and grid code as amended and

revised from time to time shall be complied. The system shall incorporate a uni-

directional inverter and should be designed to supply the AC power to the grid at

load end. The power-conditioning unit shall adjust the voltage & frequency levels

to suit the Grid.

8) INTEGRATION OF PV POWER WITH GRID

I. The output power from SPV would be fed to the inverters which converts DC

produced by SPV array to AC and feeds it into the main electricity grid after

synchronization. In case of grid failure, or low or high voltage, solar PV system shall

be out of synchronization and shall be disconnected from the grid.

9) DATA ACQUISITION SYSTEM / PLANT MONITORING

I. Data Acquisition System shall be provided for the all types of Solar System. All the

generation data, electrical parameters and inverter status shall be accessible

remotely. The contractor shall make necessary arrangements for remote

monitoring at all the locations where data can be viewed from a single remote

location. Web based Remote Monitoring System along with API for shall be

provided for monitoring and logging the real-time data for each of the Solar PV

II. The successful bidder shall ensure that the generation data storage for a minimum

of 5 years is provided through the O&M (Operations and Maintenance) phase. The

data stored in the server/cloud system must be accessible at any time during the

Tender Doc. No. GUDC/SOLAR/2026/P06

5-year period. Furthermore, the proper functioning and availability of the RMS

system shall be the responsibility of the bidder throughout the O&M period,

ensuring continuous monitoring and data accessibility.

III. The successful bidder shall ensure that the Data Acquisition System (DAS) and

Remote Monitoring System (RMS) are fully secured and protected against cyber

threats, in strict compliance with the latest Central Electricity Authority (CEA)

cybersecurity regulations and Ministry of New and Renewable Energy (MNRE)

IV. Data Logging Provision for plant monitoring, time and date-stamped system data

logs for analysis on remote PC. Metering and Instrumentation for display of

systems parameters and status indication to be provided.

V. Contractor shall provide the data over remote web-server through appropriate

arrangements. The Contractor shall provide all necessary latest Software and

hardware (except PC), with active SIM card and appropriate data plan for 5 Year

for transmitting the data, so as to make the system complete in all respect.

VI. The Remote Monitoring System shall have capability to log and send data from

installed system at the time of commissioning and during O&M Period.

VII. The following parameters are accessible via the operating interface display in real

time separately for the Solar Systems Project.

b. AC Output current.

c. Output Power

d. Power factor.

e. DC Input Voltage.

f. DC Input Current.

g. Energy Generation Today

h. Energy Generation Totalizer (Since Commissioning)

i. Time Active.

j. Time disabled.

l. Total Harmonic Distortion

Tender Doc. No. GUDC/SOLAR/2026/P06

m. Protective function limits (Viz-AC Over voltage, AC Under voltage, over

frequency, under frequency ground fault, PV starting voltage, PV stopping

n. Any other required parameter

VIII. All major parameters available on the digital bus and logging facility for energy

auditing through the internal microprocessor and read on the digital front panel at

any time) and logging facility (the current values, previous values for up to a month

and the average values) should be made available for energy auditing through the

internal microprocessor and should be read on the digital front panel.

IX. The Remote Monitoring System shall continuously record power output, fault

messages, alarms etc. in Indian Standard Time.

X. The data shall be recorded in a common work sheet chronologically date wise. The

data file shall be MS Excel compatible. The data shall be represented in both

tabular and graphical form.

XI. The contractor shall provide all administrative rights/ privileges/ passwords of the

RMS system to GUDC/concern ULB.

XII. The Contractor shall configure Remote Monitoring System with GUDC/ State Govt./

Central Govt. Portal.

XIII. The Contractor shall provide configuration of parameters which are going to

monitor as per GUDC Instruction.

XIV. It will be added advantage, if Web based remote monitoring system is capable to

periodically transfer the selected parameter value over File Transfer Protocol (FTP)

to the GUDC selected server or mail.

XV. Additionally, Inverter must provide data on serial communication over RS485 using

Modbus RTU or Modbus TCP protocol. Vendor must provide the memory map of

all the parameters. Inverter must have feature to connect in “daisy chain

configuration” for RS485 Communication.

XVI. PV array energy production: Digital Energy Meters to log the actual value of AC/ DC

voltage, Current & Energy generated by the PV system provided. Energy meter

along with CT/PT should be of 0.5 accuracy class& better.

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XVII. DC String/Array monitoring and AC output monitoring shall be provided as part of

the inverter and/or string/array combiner box or separately.

XVIII. AC energy monitoring shall be in addition to the digital AC energy meter.

XIX. The data shall be recorded in a common work sheet chronologically date wise. The

data file shall be MS Excel compatible. The data shall be represented in both

tabular and graphical form.

XX. All instantaneous & historical data shall be shown on the cloud-based platform.

XXI. Software shall be provided for USB download and remote monitoring for analysis

of DC and AC parametric data for the plant. Provision for interfacing these data on

GUDC server and portal in future shall be kept.

XXII. Provision for instantaneous Internet monitoring and download of data shall be also

10) METERING & GRID CONNECTIVITY

I. EPC Contractor shall provide an energy meter for accurate periodical readings of

AC energy generated and fed to the grid along with all metering arrangement such

as instrument transformers and structure. EPC Contractor shall be responsible for

inspection, testing and calibration of ABT or Bidirectional Meter at the time of

installation and also during operation lifetime of Facility.

II. The Bi-Directional electronic energy meter/ ABT Meter (0.2S class) shall be installed

for the measurement of Import/Export of energy. EPC Contractor has to follow

latest regulations of GERC’s (Net Metering Solar PV Grid Interactive Systems)

regulations and its amendments & orders time to time on solar metering and

conform to the CEA (Installation and Operation Meters) Regulations. An energy

meter shall be of an approved make of the DISCOM and shall conform to the

requirements laid down by the CEA’s (Installation and Operation of Meters)

Regulation, 2010 latest amended. This shall be inspected, tested and calibrated at

the time of installation and also during operation lifetime of power plant.

III. For accounting of solar generation after inverter/ ACDB from individual feeder

solar meter shall be installed. Minimum two no. of solar meter shall be considered

for plant. Solar meters shall be installed near ground floor of the building.

Tender Doc. No. GUDC/SOLAR/2026/P06

IV. The bidder must take approval/NOC from the Concerned DISCOM for the

connectivity, technical feasibility, and synchronization of SPV plant with

distribution network and submit the same to GUDC/ TPE AGENCY before

commissioning of SPV plant.

V. The bidder shall comply with the latest amended draft of the CEA Connectivity

Regulations, ensuring adherence to all grid connection, technical standards, and

reporting requirements.

VI. The Parties agree that the installation, sealing, inspection, calibration,

maintenance and testing of Main Meters and the Back Up Meters shall be as per

TENDER and shall also conform to the Central Electricity Authority (Installation and

Operation Meters) Regulation, as amended from time to time.

VII. The meters will be sealed in the presence of representatives of the EPC Contractor

and DISCOM. Any seal(s) of Main Meter or Backup Meter will be broken only by

DISCOM’s representative in the presence of the EPC Contractor’s representative

whenever such Meter is to be inspected, tested, adjusted, repaired or replaced.

VIII. In case of any change in the Delivery Point as mutually agreed between

GUDC/Concern ULB /DISCOM and the EPC Contractor will automatically apply to

this Agreement without any further action.

IX. Metering System including CT’s (Wherever applicable) shall be as approved by

DISCOM and STU. All approval, testing and required Liaison work shall be in the

scope of Bidder. Testing Charges of Solar Generation Energy Meter, Net Energy

Meter, and Current Transformer shall be carried out and borne by the Bidder.

Meter Box shall be as per DISCOM/STU requirement.

11) PROTECTIONS

The system should be provided with all necessary protections like earthing, Lightning, grid

islanding, DC Earth Fault, AC Earth fault, AC Under and Over voltage, over current, Short

Circuit and over load protection as follows:

1. LIGHTNING PROTECTION

The SPV power plants shall be provided with ESE Type lightning & overvoltage

protection. The main aim in this protection shall be to reduce the over voltage to a

tolerable value before it reaches the PV or other sub system components. The source

Tender Doc. No. GUDC/SOLAR/2026/P06

of over voltage can be lightning, atmosphere disturbances etc. The entire space

occupying the SPV array shall be suitably protected against Lightning by deploying

required number of Lightning Arrestors.

Lightning protection should be provided as per relevant parts of IEC 62305:2010

standard. Air terminals, down conductors and earth termination system shall be

designed as per relevant parts of IS/IEC 62305:2010. Necessary foundation/anchoring

for holding the air terminals in position to be made after giving due consideration to

shadow on PV array, maximum wind speed and maintenance requirement at site in

future. The product of Lightning Protection System shall be warranted for minimum of

3 (Three) years against all material/manufacturing defects and workmanship. Type test

reports for Lightning Protection System as per IS/IEC 62305:2010 shall be submitted

during detailed engineering for approval.

The protection against induced high voltages shall be provided by the use of SPD’s and

suitable earthing such that induced transients find an alternate route to earth.

Minimum 2 (two) nos. of earth pits are required for lightning arrestors. ESE type

lightning arrestors shall be used for the protection of solar system installations. Details

Design Calculation shall be submitted for approval.

2. SURGE PROTECTION

Internal surge protection shall consist of three MOV type surge-arrestors connected

from +ve and –ve terminals to earth (via Y arrangement). Both AC and DC side

minimum type-II SPD shall be provided.

3. EARTHING PROTECTION

Each array structure of the PV yard should be grounded/ earthed properly as per the

latest IS:3043-1987. In addition, the lighting arrester/masts should also be earthed

inside the array field. Earth Resistance shall be tested in presence of the

representative of GUDC / DISCOM as and when required after earthing by calibrated

earth tester. PCU, ACDB and DCDB should also be earthed properly.

The PV module structure components shall be electrically interconnected and shall

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Earthing shall be done as per IEC/IS Norms, provided that earthing conductors shall

have a minimum size of 6.0 mm2 copper, 10 mm2 aluminium or 75 mm2 hot dip

galvanized steel. Unprotected aluminium or copper-clad aluminium conductors shall

not be used for final underground connections to earth electrodes.

A minimum of two separate dedicated and interconnected earth electrodes must be

used for the earthing of the solar PV system support structure with a total earth

resistance not exceeding 5 Ohm. It shall be ensured that all the earthing points are

bonded together to make them at the same potential.

Earth pit shall be maintenance free chemical earth pit with chemical compound and

16 mm 3-meter copper coated (min 250 micron) electrode. The earth electrodes

shall have a brick/RCC/precast concrete enclosure with a removable cast iron for

inspection and maintenance. The entire earthing system shall comprise non-

corrosive components.

12) GRID ISLANDING

I. In the event of a power failure on the electric grid, it is required that any

independent power-producing inverters attached to the grid turn off in a short

period of time. This prevents the DC-to-AC inverters from continuing to feed power

into small sections of the grid, known as “islands.” Powered islands present a risk to

workers who may expect the area to be unpowered, and they may also damage grid-

tied equipment. The Solar PV system shall be equipped with islanding protection. In

addition to disconnection from the grid (due to islanding protection) disconnection

due to under and over voltage conditions shall also be provided.

II. A manual disconnect 4 pole isolation beside automatic disconnection by No-volt

relay (NVR) with contactor/breaker/etc to the grid would have to be provided at

utility end to isolate the grid connection by the utility personnel to carry out any

maintenance. This switch shall be locked by the utility personnel.

Tender Doc. No. GUDC/SOLAR/2026/P06

III. The following test/Standards can be used for testing the efficacy of the islanding

a. IEC 61727- PV system -characteristic of Utility interface

b. IEC 62446-Grid connected photovoltaic system-Minimum requirements for

system documentation, commissioning, test and inspection

c. IEC 62116-Test procedure of islanding prevention measure for utility-

interconnected photovoltaic inverters

IV. Besides the above measures, certain precautions prescribed the CEA in a solar

system technical note shall also be incorporated into the solar PV system design:

a. PV system shall be provided with adequate rating fuses, fuses on inverter input

side (DC) as well as output side (AC) side for overload and short circuit

protection and disconnecting switches to isolate the DC and AC system for

b. Fuses of adequate rating shall also be provided in each solar array module to

protect them against short circuit.

Cables of appropriate size to be used in the system shall have the following characteristics:

I. All DC String cables shall meet EN 50618 standard and AC cable shall meet IS 7098-

II. Temp. Range: –10 Deg C to +80 Deg C.

III. Voltage rating: 1,100 V AC, 1,500 V DC

IV. Excellent resistance to heat, cold, water, oil, abrasion, UV radiation

V. Sizes of cables between array interconnections, array to junction boxes, junction

boxes to Inverter etc. shall be so selected to keep the voltage drop (power loss) of

the entire solar system to the minimum (2%).

VI. For the DC cabling, XLPO insulated and sheathed, UV-stabilized single core multi-

stranded flexible copper cables shall be used; multi-core cables shall not be used.

VII. For the AC cabling, PVC or, XLPE insulated and PVC sheathed single or, multi-core

multi-stranded flexible copper/aluminium cables shall be used; Outdoor AC cables

shall have a UV-stabilized outer sheath.

Tender Doc. No. GUDC/SOLAR/2026/P06

VIII. The cables (as per IS) should be insulated with a special grade PVC compound

formulated for outdoor use. Outer sheath of cables shall be electron beam cross-

linked XLPE type and black in colour.

IX. All the AC power cable for outdoor installation shall be copper/aluminium

armoured only and the must be earthed through armoured. Cables for indoor

application shall be up to copper/aluminium only and type of insulation shall be as

per inverter OEM requirement.

X. The DC cables from the SPV module array shall run through GI/SS cable trays with

a minimum thickness as per standard. The DC cables shall be properly dressed by

avoiding overlap over one another and shall be tied by using cable tie(s) in order

to ensure that the cables do not run away from the tray and thereby maintain

XI. Cables and wires used for the interconnection of solar PV modules shall be

provided with solar PV connectors (MC4) and couplers.

XII. All cables and cable trays shall be clamped to the roof walls and ceilings with

thermo-plastic clamps at intervals not exceeding 50 cm; the minimum DC cable size

shall be 4.0 mm2 copper; the minimum AC cable size shall be 4.0 mm2 copper. In

three phase systems, the size of the neutral wire size shall be equal to the size of

the phase wires. The following colour coding shall be used for cable wires:

a. DC positive: red (the outer PVC sheath can be black with a red line marking)

b. DC negative: black

c. AC single phase: Phase: red; neutral: black

d. AC three phase: Phases: red, yellow, blue; neutral: black

e. Earth wires: green

f. Cables and conduits that have to pass through walls or ceilings shall be

taken through a PVC pipe sleeve.

XIII. Cable Routing/ Marking: All cable/wires are to be routed in a GI cable tray and

suitably tagged and marked with proper manner by good quality ferule or by other

means so that the cable can be easily identified.

XIV. In addition, cable drum no. / Batch no. to be embossed/ printed at every one