PROVISION OF ROOF TOP SOLAR PLANTS TOTALING 300 KW AT CERTAIN BUILDINGS AT LUCKNOW

Amount

Supply, installation, testing and commissioning including connecting to local utility grid; Roof top On-grid Solar Photovoltaic Plant of 50 KW capacity including Solar Photovoltaic Modules, DCR, DC and AC Cabling, Module Mounting Structures, Array Combining Boxes, Lightning Protection of SPV modules and other accessories, Central Inverter and Power Conditioning Unit, Weather Station and Data Monitoring System all as per detailed specifications given in Particular Specification, latest MNRE guidelines and directions, consisting of all requisite accessories (BOS-Balance of System) and incuding the following main componenets:- Make of Solar PV Module : As per MNRE OM No 283/41/2024- Gird solar dated 06 Jan 2025 as amended up to bid submission end date.

(e) Each module shall have RFID tag encapsulated with solar cell bearing following details :- (i) Name of Manufacturer of SPV Module (ii) BLANK (iii) Month and year of Manufacturing (seperately for module) (iv) Country of Origin (module - Make in INDIA only) (v) Peak wattage, Im, Vm and fill factor of the module (vi) Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate. (vii) Unique serial no and model no of module (viii) IV curve of module (f) The temperature coefficient of power for the module shall not be more than 0.50% per degree Celcius. (g) Every module must have bypass diode of suitable capacity. (h) PV module must confirm to latest edition of IEC 61215/ IS 14286. In addition the modules must confirm to IEC 61730 Part I and II for construction and testing & safety qualifications and confirming to IEC 62804 PID or the latest relevant International Electrotechnical Commission (IEC). (j) It shall also be in confirmity to latest minimum technical specification issued by MNRE & IREDA from time to time. Modules should be of MNRE & IREDA approved companies and as per latest IEC/IS standards.

(k) RFID reader is to be provided by contractor. (l) Each structure should have angle of inclination as per the site conditions to generate maximum power. However, to accommodate more capacity the angle inclination may be adjusted or as per IEC guideline until the plant meets the specified performance ratio requirements. (m) Any damage to the existing roof treatment of any type due to the Installation of Solar Power System shall be Re-done/made good as per existing treatment. Cost of the same shall be included in the unit rate quoted. Nothing extra shall be admissible on this Account.

Junction Boxes : Supply and fix jucntion boxes of suitable Nos (as per design)/ OEM recommendations inputs and suitably rated output having separate DC fuses for both (+) & (-) on input and isolator on output terminal for each string. Each junction box must have a spare input terminal. The junction boxes shall be dust and vermin proof and water proof made of FRP/ Thermo Plast with IP 65 protection in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and maintenance free earthing as per relecant standard. The junction box shall have suitable arrangement of the following :- (a) The strings are required to be connected to the copper bus bar through individual fuses. (b) Provide arrangement for disconnection (DC dis-connection switch) for each SJB/ SCB. (c) Provide a test point for each sub group for quick fault location and to provide group array isolation. (d) Each array box shall be of relevant IEC standard. (e) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V with suitable arrangement of its connection. Reverse blocking and bypass diodes shall work for extreme temperatures and shall have efficiency of 99.98% confirmed by appropriate IEC standard. Make : As per OEM

DC Cables : Suitable size of XLPE insulated tinned Copper cable as per latest IEC/IS speciffication and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :- Make of solar DC cable : Havells / Polycab / KEI / Finolex / RR Kabel (i) Solar Cable -From Module to DCDB & Inverter- 1Cx6 Sqmm tinned copper cables,UV resistant,Solar Cable,TUV certified1800Vdc. (ii) AC Cables(Inverter to AC distribution Box):-4Cx25 Sqmm power cables Cu conductor,XLPE insulation,unarmoured PVC outer sheath 1100V(Flexible Type) (a) All cables and connectors for use of installation shall be of Solar grade which can withstand harsh enviromnetal conditions including high temperature, UV radiations, rain, dirt, burial and attack by moss and microbes for 25 years and voltage as per latest IEC/ IS. (b) All the cables / wires shall be provided with UV resistant printed ferrules for DC side. (c) The size of the cable shall be such that avarage voltage drop at full power from PV module to inverter shall be less than 1.5%. (e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable sizeor as per OEM recommendation. (f) The cost of interconnecting DC Copper cable (not less than 6 sqmm of size) , MS cable trays, and earth work for trenches/ MS cable trays suitable to accommodate Solar grade cables from SPV module upto inverters are included in the item.

Module Mounting Structure (MMS) : Design, supplying, fixing, non-penetrating support structure made of hot dipped galvanised with min 3mm thickness, C shape including necessary PCC (1:2:4) foundation and associated work (cutting, grouting, PCC filling, dispoing waste material, etc., complete) and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 200 km per hour. The mounting structure is to be installed at RCC Roofs. It shall also occupy minimum space without sacrificing the output of SPV panels & adequate space between the arrays shall be available for easy cleaning and maintenance. Nuts, bolts, mounting structure including module mounting structure shall have to be adequately protected from the atmosphere and weather prevailing in the area. Notes : (a) Anti theft fastners of Stainless Steel on MMS be provided for each module. (b) The module mounting structure shall be fixed to provide maximum generation. (c) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines. (d) MMS to be made available by Bidder at site. All bolts, nuts, panel mounting clamps fasteners shall be of stainless steel of grade SS 304 and must sustain the adverse climatic condition. (e) Structural material shall be corrosion resistant and electrolytically compatible with the materials used in the module frame, its fasteners, nuts and bolts (SS-304). (f) Necessary protection towards rusting need to be provided either by coating or anodization.

The prospective Installer shall specify installation details of the solar PV modules and the support structures with layout drawings and array connection diagrams. The work shall be carried out as per the designs approved by the Engineer Incharge. The frames and leg assemblies of the array structures shall be made of MS hot dip galvanized.Minimum thickness of galvanization should be at least 600 gsm. Note:-Test certificate of galvanization shall be submitted by contractor. All fasteners shall be of Stainless steel-SS 304 Nut & bolts, supporting structures including module Mounting Structures shall have to be adequately protected against all climatic condition.

Lightning Protection for PV Array : Design, procure and fixing of lighting arrestor system (ESE type) on the roofs. The air terminal shall be fixed at the top of GI elevation pole with base so as per IEC speciffication/IS, the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required as per IEC specification. Notes : (a) The cost of all equipments, Copper strip upto earth test point,LA, etc., shall be deemed to be included in this item. (b) The cost of sufficient earthing for lightning protection is also included in this item as directed by engr-in-charge and no extra payement will be made to the contractor on this account. (c) Provision of earthing, minimum 5 numbers of earthing and earth strip / cable etc for earth of solar PV module, array, inverter,dc & ac boxes and for LA of protection level 4 etc as per latest IS/MNRE & IREDA norms to be provided and cost of the same is deemed to be included in the item and no extra amount will be paid to the contractor on this account in case of any dispute decision of Accepting Officer will be final and binding to contractor. (The earthing shall be of copper earth plate and having specification as per SSR Item Sr 19474). Solar Inverter / Power Conditioning Unit : Supplying, fixing, testing and commissioning of 50 KW AC (nominal power), Solar power inverter suitable to convert DC power of Solar PV module/ array to AC for further feeding to grid confirming to IEC : 61683 for efficiency, IEC : 62109-1 or equivalent for safety and IEC : 62093 for reliability. The input DC & output AC technical specification of Inverter as specification in PS.

Solar Grid Tie Inverter (Output AC) Make of Solar Inverter : Schneider / Sungrow / Growatt / SMA / ABB (a) AC grid connection type : 3Phase (4W + PE) (b) Nominal Power at unity PF : 50 kW (c) Max AC output power : 50KW (d) Max AC output Apperant power : 50KVA (e) Max AC output Current : 200 A (f) Max AC fault current : 217 A (g) Nominal Output Voltage : 415 V (h) Output voltage range : 415 V ± 20% (j) Output Frequency : 50 Hz ± 3Hz (k) Power factor : > 0.995 (l) Harmonic Distortion Current : < 3% (m) Efficiency : > 98% (n) Standby operation consumption : < 1.5 W (o) Warranty : 10 years

(p) Operating temperature upto 85 degree centigrade (q) The inverter shall have minimum IP-67 protection, ground fault monitoring, grid monitoring, protection for anti-islanding, DC reverse polarity, AC and DC short circuit current and over current, AC and DC over voltage and over temperature. (r) The inverter shall adjust voltage and frequency levels to suit the grid. (s) The inverter shall be self commulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min. (t) Maximum Power Point Tracker (MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximise the energy drawn from the PV array. (u) Monolithic design of inverter is not permitted. (v) The inverter shall have suitable nos of protected inputs (asper design) and outgoing shall be protected by suitable capacity of MCCB. (w)Online monitoring system with following specification to be provided:- (i) Daily Generation (ii) Generation analysis of report (iii) Cumulative monthly and yearly data (iv) SIM based system for 2 years

(x) The inverter should have MODBUS, PROFIBUS, ETHERNET common ports. (y) The inverter shall include appropriate self protection and self diagnostic feature to protect itself and the PV array from the damage in the event of inverter componant failure or from parameters beyond the inverters safe operating due to internal and/ or external causes. Inverter shall have protection arrangement against ground leakage faults, over voltage, SPD & over current. Inverter shall have arrangement for adjustment for adjusting DC input current and shall trip against sustainable fault down stream and shall not restart till fault is rectified. (z) The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741 or equivant IS) and lightening. (aa) PCU must have the feature to work in tandem with other similar PCUs and be able to be successively switched ON and OFF automatically based on solar radiation variations during the day. (bb)Inverter generated harmonics, flicker, DC injection limits, Volt range, frequency range and antiislanding measures should follow latest IEC 62116 / BIS Code.

Protection features- Inverter should have following protections:- (i) Anti islanding. (ii) Over voltage Protection (iii) Over Current Protection (iv) Over temperature protection (v) Reverse polarity Preotection (vi) Surge Protection (vii) Short Circuit (vii) Frequency veriaion.

Bi-directional Net Metering : Quoted rates inclusive of installtion of Net meter of approved make b y GE. Balance of System (BOS) Items/ Components :- The BOS items/ components of the SPV power plants/ systems deployed under this project shall conform to the latest edition with certificate of IEC or equivalent BIS Standards/ MNRE specifications/ as specified in Para 1.01 of 'Minimal Technical Requirements'/ 'Standards for SPV System/ Plants' to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender. Notes : (a) The contractor must visit the site before quoting the rates for this item to asses the site condition so as to decide up on location and layout of SPV, placement of inverter, length of DC cables, lightning arresters, etc., complete. (b) The contractor shall submit complete scheme including electrical diagram of the work, schematic diagram, SPV module layout, placement of LAs, Civil work, etc., complete as per IREDA latest guidelines as applicable, Relevant IEC/IS norms to the GE for approval with in one month of date of commencement of the work.

Comprehensive maintenance Annual/Comprehensive maintenance for (02+03= 05) years including 02 year of DLP of the ON grid Connected roof Top Solar PV Plant for generation of 50 KW along with its components such as Solar PV Modules ,Power Control Unit with inveters,lightening arresters and earthing system installed at location of site. a) M & L for comprehensive maintenance would include washing/cleaning of Roof Top Solar PV Modules as per pre-planned schedule for maximum generation.(As per guidelines issued by MNRE/direction of GE/AGE) and cost of T&P,Labour required at site is deemed to be included b) Checking electrical parameter of the installed power plant . c) Keeping the area neat and clean free from vegetation growth.The maintenance and cleaning of Area near Modules shall be sole responsibility of the Contractor.

(e) Contractor shall carry out the performance monitoring for the Plant Facility on continuous basis and in case of any deviation, the contractor shall perform the due diligence approprieately to find out the actual root cause of such deviation. Any test or inspection required such as thermal imaging, current Voltage (IV) characteristics test etc to analyse such deviation will be the responsibility of the contractor. Thereafter, the corrective action required to mitigate such deviation shall be undertaken by thhe contractor without anyadditional cost. (f) In order to optimize the useful life of the equipment of power plant, the contractor shall carryout necessary routine, breakdown and preventive maintenance . The contractor shall perform periodic overhauls and preventive maintenance required for the plant in accordance with the recommendations of equipment manufacturers. g) Spares such as MCB,MCCBs,Fuses,DC Fuses,Al cards such as input/output Card ,power supply card ,processor card ,PV Modules, Glands,lugs,MC4 connectors,tie connectors,clamps,cable Ties and all other consumables/spares which are required for uninterrupted O&M of the Plant should be kept readily available at Site. h) Earthing Register has to be maintained by the Contractor.The earthing values of all earthing shall be recorded ( LA and Solar Earthing).Any material required to recharge of the earth pit shall be borne by the Contractor.(the cost of new earthing alongwith connected items like earthing strip,excavation etc if required to executed at site is deemed to be incl in the quoted rates.)

(j) CUF quoted by the contractor should not be lower than guaranteed value of 15 percent during the 1st year with maximum 1 percent degradation factor in previous year generation. Accordingly, CUF shall be 14.17 percent at the end of 5th year of installation. Contractor shall maintain minimum capacity Utilization Factor of 13 percent after 5th year. (k) The ACTUAL PERFORMANCE RATIO (APR) shall be equal to or more than the minimum Guaranteed performance ratio of 80%. The performance ratio test should be conducted within 30 days of successful commissioning of the plant. PLANT having performance ratio below 75% shall not be accepted by GE. In such case the contractor at its own cost shall “Make Good” the PLANT so as to be capable to meet the minimum guaranteed performance ratio. This shall be verified by, again carrying out the PR test within a reasonable period of time. Irradiance has to be calculated using Pyrometer which shall be arranged and fixed by contractor with correct orientation. j) Reduction plant down time:- The contractor shall ensure the plant availability upto 99%.However,the plant availability due to grid outage will be considered only if the same are certified by the competent authority/GE. Any other outage which are not attributable to the contractor and are certified by department may also be considered. k)Record shall be maintained by contractor in concultation with deptt for energy generation on daily basis.

All as per srl item no. 1 above, but capacity of ON Grid connected Rooftop Solar Photo-voltaic ( PV) DCR plant 40 KWp and cumulative capacity of inverter minimum 34 KW.

Dynere Engineering Private Limited (BID ID -3384406)