PROVISION OF ON GRID WITH HYBRID INVERTERS INSTALLATION OF 180 KW SOLAR POWER PLANTS AT CSD AND OFFRS MESS AT CDM SECUNDERABAD

Design, procure, erection, installation, testing and commissioning including connecting to local utility grid; Roof top Solar Photovoltaic Plant of 45 kW capacity including Solar Photovoltaic Modules(Mono PERC Halfcut panels), DC Cabling, Module Mounting Structures, Array Combining Boxes, Lightning Protection of SPV modules and other accessories, Central Inverter as Power Conditioning Unit, Weather Station and Data Monitoring System all as per detailed specifications given in Particular Specification, latest MNRE/IREDA guidelines and directions, meeting the Domestic Content Requirement (DCR), consisting of all requisite accessories (BOS-Balance of System) and incuding the following main component :- Make for solar panel and invertor :- TATA POWER/ ADANI / WAAREE

(A) Mono PERC Halfcut 144 cell Solar Photovoltaic Modules of 540 Wp or more (module power and number of modules to be selected according to available roof top area & adequate walkway), having cell efficiency more than18% under standard conditions, form fill factor more than 0.76, plant performance ratio > 75%, made of high transmitivity glass front surface and it shall give high encapsulation gain (transmittance above 90% and bending less than 0.3%). The modules shall have the following features :- (a) The electrical parameters of SPV modules under standard test condition of irradiance 1000 W/sqm, AM 1.5 Spectrum and temp 25 degree Celsius shall be as under:- (i) Max Peak Power Pmax : 540Wp or more (ii) Voltage at Max Power : > 41.98 V (iii) Current at Pmax : > 12.99 A (iv) Short Circuit Current : > 13.74 A (v) Open Circuit Voltage : > 49.97 V (vi) Module Efficiency : > 20.99 % (b) Rated output of the modules shall have positive tolerance of 3-5% and no negative tolerance is allowed.

(c) It shall perform satisfactorily in RH 85% with temperature up to +85 degree C and should withstand wind of 200 kmph on the surface of panel. (d) PV modules shall be warrented for their output peak watt capacity, and it shall not fall of its initial value below 90% by the end of first 10 year end and 80% after the end of 25 years. (e) Each module shall have RFID tag encapsulated with solar cell bearing following details :- (i) Name of Manufacturer of SPV Module (ii) Name of Manufacturer of Solar Cell (iii) Month and year of Manufacturing (seperately for cell and module) (iv) Country of Origin (both cell and module) (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. (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) Provision of earthing and earth strip / cable etc for earth of solar PV module/ array 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. (The earthing shall be of copper earth plate and having specification as per SSR Item Sr 19474).

(l) RFID reader is to be provided by contractor (m) Both PV cells and SPV modules shall be of make in India. (n) The minimum Net Annual Generation shall be 1,460 units per Kilo Watts.

(B) 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 relevant 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

(C) DC Cables : Suitable size of XLPE insulated tinned Copper cable (min 6 sqmm of size) of Solar grade, 1100 Volts and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :- (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 avearage voltage drop at full power from PV module to inverter shall be less than 1.5%. (d) Cable batch No, drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice. (e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable size. (f) The cost of interconnecting DC Copper cable, 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.

(D) Module Mounting Structure (MMS) : Design, procure, fixing, support structure made of hot dipped galvanised with min 85 micron thickness including necessary PCC foundation and associated work (cutting, grouting, PCC filling, disposing 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 and the array structure has to be so designed that maximum load is directly on roof beams and columns. 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. All the fastners shall be of Stainless Steel of grade SS316. Notes : (a) Two numbers of anti theft fastners of Stainless Steel on two diagonally opposite corners of each module shall be provided.

(b) The modue mounting structure shall be of fixed to provide maximum generation. (c) MMS design shall be supported with Stadpro Report vetted by Third Party (Gov Institute) and submitted for the approval of the Acepting Officer. (d) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines.