PROVN OF SOLAR POWER PLANT AT KOTA MIL STN

Labour for Design, supplying, erecting, installing, testing and commissioning, consultancy, civil work, and erection of entire system, including topographical survey of Grid connected Rooftop Solar Photo-voltaic ( PV) plant of 70 KWp at Location 18 DIV KLP (Rooftoop system ) under Military station Kota Note. The cost of the components shall be measured and paid separately.

Photo Voltaic (PV) Modules :- The PV modules must conform to the latest edition of any of the following IEC/equivalent BIS Standards for PV module design qualification and type approval: Mono Crystalline Silicon Terrestrial. Crystalline silicon solar cell modules conforms IEC 61215 / BIS 14286, Thin film modules IEC 61646 / Equivalent BIS, Concentrated PV modules IEC 62108 / Equivalent BIS, PV modules (for contruction & safety) must conforms IEC 61730 (Part I & II )/ Equivalent BIS., PV modules corrosive atmosphere IEC 61701 / BIS 61701, PV module in sandy environment must conform IEC 600068-2-68.

Each PV module must use a RF identification tag (RFID), which must contain the following information: (i) Name of the manufacturer of PV Module (ii) Name of the Manufacturer of Solar cells (iii) Month and year of the manufacture(separately for solar cells and module) (iv) Country of origin (separately for solar cells and module) (v) I-V curve for the module (vi) Peak Wattage, Im, Vm and FF for the module (vii) Unique Serial No and Model No of the module (viii)Date and year of obtaining IEC PV module qualification certificate (ix) Name of the test lab issuing IEC certificate (x) Other relevant information on traceability of module as per ISO 9000 series. Note:RFID shall be mandatorily placed inside the module laminate.

Authorized testing laboratories /centre: PV modules must qualify (enclose test reports/certificate from IEC/NABL accredited laboratory) as per relevant IEC standard.Qualification certificate from IEC/NABL accredited laboratory as per relevant standard for any of the higher wattage regular module should be acompanied with the STC report/certificate. For details of Test Labs refer Ministry of New And Renewable Energy website. The report submitted should not be older than 1 year.

PV modules used in solar power plants/ systems must be designed for their output peak watt capacity, which should not be less than 90% at the end of 10 years and 80% at the end of 25 years. PV modules shall have product warranty of 10 years after completion of work. Contractor shall obtain the warranty certificate from the manufacturer and will submit the same to the Eng-in-charge by the contractor.

Silicon Mono Crystalline SPV cells shall be used in the Solar Photo voltaic module. SPV modules should be essentially indigenously manufactured(manufactured in India) irrespective of any other provisions in this tender. The make of SPV shall be SAATVIK/INA/RAYZON/ GOLDI/ WAAREE/ ADANI/VIKRAM / Navitas ( ALMN Approved vendors only )

Peak power rating of the module shall not be less than 530 Wp.

The module efficiency shall be more than 16% at standard test condition and the cell should have minimum fill factor of 0.7 with anti reflective coating. It shall be made of high transmittivity glass & front surface shall give high encapsulation gain. Note:- Anti dust coating on PV modules shall be done at site.

All materials used shall have a proven history of reliability and stable operation in external applications.It shall perform satisfactorily in relative humidity upto100% with ambient temperatures between -4°C and +60°C and shall withstand wind gust upto 180km/h on the surface of the panel. Each and every SPV module shall be checked for conformity with relevant standard and no negative tolerance shall be accepted.

The interconnected cells shall be laminated in vacuum to withstand adverse environmental conditions

The module frame will be made of corrosion resistant materials having aluminium anodized finish.

The bidder shall carefully design & accommodate requisite numbers of the modules in the available area (refer topographical survey) to achieve the rated power in his bid. Note-: Shadow analysis report of the site has to be submitted along with topographical survey . The same shall be incorporated in designing in designing of solar plant in PV syst/PV sol/ NREL software.This report has to be vetted from MNRE approved organisation/ NIT / Govt Research Institute and submitted to Eng-in-chagre by the Contractor.

The modules must be compatible with Inverter MPPT range.

The module shall be provided with a junction box with either provision of external screw terminal connection or sealed type and with arrangement for provision of 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 IP67 rated.

Balance of system (BOS) items/components: The BOS items/components of the SPV power plants/systems deployed under this project must conform to the latest edition of IEC or equivalent BIS Standards /MNRE specifications / as specified 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.

Mounting structure:- (a) Mild steel structure, Hot Dip Galvanised of 80 micron thick, corrosion resistant and electrolytically compatible with material used in modular frame mounting Structure Shall be used. Galvanization shall conform to IS-2629, 4759 & 4736 as applicable. (b) The structure shall be mounted either directly on RCC roof or PCC block of suitable strength which shall be be prepared on RCC roof to withstand the load of the mounting structure. The fastners shall be of stainless steel to fix the mounting structure. (c) It should have suitable strength to withstand windspeed of 150 km/hr .The contractor shall submit the design, length, section, detailed layout etc. of the structure and walkway and will be approved and finalised by Garrison Engineer. Module mounting structure shall require to be customize with respect to the site availability.Test certificate of galvanization shall be submitted by contractor. (d) The contractor shall submit structural design on Stad- Pro based on Wind load The design have to be vetted from NIT/MNRE approved organisation..The mounting steel structure shall be as per IS 2061-1992

The Structure shall be of Fixed type and the design of mounting strucutre shall be as per IS code.

Minimum module ground clearance should be 300 -400mm and Tilt angle of PV module shall not be less than 22 degrees.

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.

Any damage done to water proofing/roof structure/ Galvalume Sheet during installation shall be made good by the contractor at no extra cost.

M&L for cement concrete (1:2:4) type B2 in foundation filling and mass concrete and coping of poles incl necessary form work using 20 mm graded stone aggregate etc

Grid Tied Solar String Inverter-70 KW (3Ph):- Supply, Installation, Testing & commissioning of Grid connected string solar inverter of 70 KW capacity as per the system design having following specifications INPUT (DC) (i) Recommended PV input power - 77000 W (ii) Max DC power for single MPPT - 2600W/2600W/2600W (iii) No of DC inputs- 4/4/4 (12 Nos) (iv) Max input voltage- 1000V (v) Rated input voltage- 700V (vi) MPPT voltage Range - 250V-960V (vii) Full load DC voltage Range- 660V (viii) Max input current per string - 12A (ix) Max DC input short circuit current per MPPT - 48A OUTPUT (AC) (i) Rated power - 70000W (ii) Max AC power - 70000VA (iii) Max output current - 90A (iv) Nominal Grid Voltage- 3/N/PE or 3/PE, 277/480VAC (v) Grid Voltage Range - 422VAC-528VAC (According to local Standard) (vi) Nominal frequency- 50Hz (vii) Grid frequency range- 40Hz-55Hz (According to local Standard) (viii) Active power Adjustable Range - 0-100% (ix) THDi - <3% (x) Power Factor - 1 default (±0.8)

PERFORMANCE:- (i) Max efficiency upto:- 98.6% (ii) MPPT efficiency:- >99.9% PROTECTION:- (i) DC reverse polarity protection (ii)DC Switch (iii) Protection Class/ Overvoltage Category- I/II (iv) Input/Output SPD (II):- PV: Type II Standard, AC: Type II (v) Safety Protection:- Anti islanding, RCMU, ground fault monitoring (vi) Anti reverse poer controller COMMUNICATION:- (i) Standard communication Mode- RS485/Wifi/ Ethernet/ GPRS (optional), SD card, Multi fuction relay (ii) Operation Data Storage - 25 Years GENERAL DATA:- (i) Ambient temp range : -25 °C - +60 °C (ii) Topology - Transformer-less (iii) Degree of protection - IP65 (iv) Allowable relative humidity range - 0-100% (v) Noise: ≤ 60 dB STANDARDS:- EMC - EN 61000-6-2, EN61000-6-4, EN 61000-3-11, EN 61000-3-12 Safety standard- IEC 62109-1/2, IEC 62116, IEC 61727, IEC61683, IEC60068(1,2,14,30) Note:- Inverter shall be capable of synchronisation with grid supply and DG Set supply. (Make-Solis/ Powerone/Ksolare/Growatt/ABB/MICROTEK/LUMINOUS / HITACHI/DELTA ).

Solar Data logger:- A wifi enabled data logging system for plant shall be provided for a plant capacity of more than 50 kWp -To measure the Solar Irradiance an integrating sensor (Pyranometer) mounted in the plane of the array. Read out should be integrated with data logging system.- Wind Speed:An integrated wind speed measurement unit be provided.-Temperature Sensor : Integrated temp, sensors for measuring the module surface temp., inverter inside enclosure temp,and ambient temp to be provided complete with read outs integrated with the data logging system. Note-SCADA system for monitoring of following data through web based application with cloud storage minimum 6 months: (i) Solar irradiance (ii) Wind speed, (iii) Amb temperature (iv) Module surface temp (v) Generation data KWh (per inverter and cumulative) (vi) Instantaneous generation in KW (Each invertor and cummulative) Suitable HMI/Graphs depicting above data shall be readily available for a period through this application.

Supply and fixing of MC4 Solar connector/ PV MC4 connector of following specifications:- (i) Rated current -30 amps (ii) Rated voltage- 1500 V DC (IEC) (iii) Ambient temperature range- -40°C and +90°C (iv) Degree of protection/safety class- IP68/Class II (v) Contact resistance of plug connector- 0.5mΩ (vi) Contact material- Copper tin plated (vii) Cable size- 2.5sqmm to 6.0 sqmm

Supply and fixing , testing and commissioning ACDB ( AC Distribution board) panel of operational voltage upto 800 VAC , insulation voltage upto 1000 VAC, Maximum operating current 630A AC, with internal bus bar made up of copper , with MCCB 125 amps 4 pole. Input Method: Double compression nickel plated cable gland, Output Method: Double compression nickel plated cable gland made up of powder coated CRCA sheet 3.15 mm thick dust , water and vermin proof arrangement (IP67) cubical type suitable for operation of three phase/ single phase, of capacity as per Solar Design with suitable No. of inputs and outputs with fuses, connectors,isolators conforming to IEC 61439-1&2 standards complete all as specified and directed. Make : HAVELLS /L&T/Mersen/Phoenix/Hensel.

DC cable insulated and PVC sheathed, unarmoured cable, UV-stabilized, FRLS single core flexible copper of size 4.0 sqmm

AC cabling, insulated and PVC sheathed single or, multi-core flexible copper cables of 35 sqmm 4 core unarmoured

AC cabling XLPE insulated armoured PVC Sheathed LT (1100 Volts grade) cable with aluminium conductor of size 70 SQMM 3.5 CORE on wall/roof or passing through GI pipes including all fixing arrangements

Lightening protection:- There shall be the required number of suitable Early Streamer Emission (ESE) lightning arrestors installed (As per Design to be submitted by sucessfull bidder) .The air terminal is Early Streamer Emission(E.S.E.) type which shall provide protection not less than 100 meter of radius and fixed at the top of a stainless steel pole with base be atleast 4 meters above the structure to be protected.The air terminal should be working on the principle of early streamer emission using non-radio active technology,needing no external power source.The air terminal should be capable of tracking the lightning stroke 60 micro seconds earlier as compare to passive lightning rod. The air terminal is of stainless steel and it has qualified diameter to resist high values of lightning currents.Roof connection pipe should be capable of withstand in lightning strikes having dimension 60mm OD and thickness of 5 mm. Make: True power or equivalent

Earthing complete with copper earth plate electrode 600 mm x 600 mm x 3.15mm as earthing lead buried directly in ground vertically to a depth not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 Mtr below normal ground level connected to and including copper strip 20x3 mm as earthing lead by means of bolts, nuts, check nuts & washers etc made of brass and connected to earthing test point all as shown in electrical plate No. 5 of SSR Part I of 2009 & as specified or indicated and testing on completion including excavation/earth work in any type of strata PCC ( 1:3:6 ) type C1 earthing chamber, pre cast slab cover 50 mm thick in cement concrete ( 1: 2 : 4 ) type B 1 ( reinforced with welded steel wire fabric (XPM) weight not less than 4 Kg / Sqm), funnel with wire mesh, watering pipe of 20 mm bore medium grade, including copper strip 20X3 mm with GI protection pipe of 40 mm medium grade up to 7.5 meter length, etc complete all as specified.

S&F test point made out of gun metal or phosphorous bronze of size 75x50x5mm duly mounted on epoxy insulator 02 Nos.Drilling of upper & lower portion of test point for incoming & outgoing connections with brass nut bolt to be fitted in and including terminal blockmade out of M.S sheet 2mm thick as per the sample duly painted with two coat of enamel paint over a coat of red oxide primer complete all as specified and directed.

Supply & fixing of Earthing wire insulated and PVC sheathed, unarmoured cable, UV-stabilized , FRLS single core flexible copper of size single core copper 16 sqmm of reputed make drawn through PVC conduit complete

Metering arrangements:- Solar meter:- A separate Energy Meter called Solar Meter shall be provided at the output of PCU/Inverter to record the energy generation from the Solar System. Solar energy meter means a unidirectional meter to be installed at the delivery point of the solar energy system to measure the solar electricity generated. This Energy Meter should be tested along with the Net Meter (Import-Export Meter). Netmeter:- (A) Suitable dual metering arrangements with recording facility shall be provided.The metering arrangements must have feature to measure and record, (i)Parameters of KW,KWh,KVAR,voltage,current,PF and any other metering required to determine efficiency and efficacy of the system. (B) LT 3 Phase 4 Wire Electronic Tri vector Meter with CT ratio should be as per capacity of SPV plant. (i) Standard: IS 13779:1999 / CBIP 88 (ii) Accuracy: Class 0.5 (iii) Reference Voltage - 3x240 V (iv) Basic Current (Ib) - 5 A (v) Maximum continuous current (Imax) - 10 A (vi) Rated Frequency (variation) - 50Hz (±5%) (vii) Power consumption:- Voltage circuit: Less than 1.5 W and 10 VA per Phase at reference voltage, reference temperature and reference frequency Current circuit: Less than 1 VA per phase at basic current, reference frequency and reference temperature (viii) Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height (ix) Display in the event of Power Failure: Internal battery back-up for LCD display (x)Communication port: Galvanically isolated Optical Communication port for data transfer through either CMRI or remote device or both is provided with RS 485 for DLMS protocol (xi) Energy recording – Bidirectional

S & F PVC-U, 20 mm dia ,type A as per IS 13592: 2013 single socketed water pipes of suitable length to cover the whole plant area with provision of nozzles outlet every 10m in order to clean the pv modules complete all as specified and directed by Engineer- in- charge. The cleaning system shall be connected to the water source available at site.The cost of supplying, installation and testing of washing and cleaning system of PV modules is deemed to be included in quoted rate.

Operation and Maintenance & AMC of complete rooftop solar plant installed icluding servicing, repairing and replacement of the parts for 5 years from the date of completion of defect liability of the project. The scope includes:- (a) Operation and maintenance shall include washing / cleaning of Solar PV Modules on weekly basis. (b) Checking Electrical Parameter of the installed power plant. (c) The washing and cleaning of PV modules to be done by using spray nozzles cleaning system. Note:- Cost of spare parts for Comprehensive maintenance shall deemed to be included in the quoted rate.

Note:- (a) Number of inverters / PV modules and other components should as per site requirement or OEM Design. Design of structural drawings of module mounting structure alongwith design calculations shall be submited by the contractor duly vetted from MNRE approved organisation/ NIT/ Govt Research Institute Minimal technical requirements/standards for SPV systems/plants to be deployed as per MNRE are mandatorily to be complied within the design.