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| 1 | Design, procure, erection, installation, testing and commissioning including connecting to local utility grid; Roof top On-grid Solar Photovoltaic Plant of 20 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 componenet:- Make for solar panel and invertor :- Havells/tTATA power/BHEL |
| 2 | (A) Mono PERC Halfcut 144 cell Solar Photovolaic Modules of540 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 folling 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% in first 10 year end and 80% after the end of 25 years. |
| 3 | (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. Modulesshould be of MNRE & IREDA approved companies and as per latest IEC/IS standards. |
| 4 | (k)Provision of earthingand 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 make in India.(n) The minimum Net Annual Generation shall be 1,460 units per Kilo Watts. |
| 5 | (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 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 temperaturesand shall have efficiency of 99.98% confirmed by appropriate IEC standard.Make : As per OEM |
| 6 | (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. |
| 7 | (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, 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 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. |
| 8 | (E) Lightning Protection for PV Array : Design, procure and fix lighting arrestor system cofirming to IS/ IEC-62305 (Part 1 - 4) on the roofs. The air terminalshall be fixed at the top of GI elevation pole with base so as to be at least two meter above the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required. Notes : (a) The cost of all equipments, Copper strip upto earth test point, 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 and no extra payement will be made to the contractor on this account.(F) Power Conditioning Unit : Procure, fixing, testing and commissioning of 30 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 are as under :-.Input (DC)(a)Max Absolute DC input Voltage : 1100 Vb)Start-up DC input voltage : 200Vc)Operating input DC voltage range : 180 - 1000 V(d)No of independent MPPT : 3(e)MPPT input DC voltage range at Pacr :480 - 850 V DC(f) Max input DC Current : 120 A(g)Maximum input short circuit current : 150 A(h)No of Protected DC inputs : 6 |
| 9 | Output AC(a)AC grid connection type :3Phase (4W + PE)(b)Nominal Power at unity PF : 30 kW(c)Max AC output power : 34KW(d)Max AC output Current : 51.5 A(e)Nominal Output Voltage : 415 V(f)Output voltage range : 415 V ± 20%(g) Output Frequency : 50 Hz± 3Hz(h)Power factor : > 0.995(i) Harmonic Distortion Current : < 3%(j) Efficiency : > 98%(k)Standby operation consumption : < 3 W |
| 10 | (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 suitble nos of protected inputs (asper design) and outgoing shall be protected by ACB/MCCB. |
| 11 | (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) 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. |
| 12 | (G) DG PV SYNCHRONIZATION (ZERO EXPORT ON DG) : Back Feed Protection Controller Hardware enclosed in a Fully Engineered IP 54, Powder Coated Panel with all accessories :-(a)Back Feed Protection Controller Run Time Software customized to configuration,Feedback Management of solar power.(b)Data Logging Facility with 1 Year Cloud Charges included,(c ) Two Level Protection(d) Level-1 ( Primary Protection) : Controller(e) Level-2 : Communication failure |
| 13 | (f)CT / PT - Supply or fitting in any of the Panels(g) Modification in Wiring of any existing panels(h) Cabling for powering back feed protection control panel(j) SEB Main Line/ ACDB Energy Meter of any kindt.(H) 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. |
| 14 | (c)The contractor shall arrange for supervision/ inspection, monitoring from IREDA during concurrancy of the work and performance monitoring after completion as per MNRE guidelines issued for VGF. The SPV cell and modules are to be made in INDIA so that the benefits of VGF can be availed by the department as per latest MNRE OMs.(d) The rate quoted shall inclusive of the all protection system including surge, lightning arresters and necessary earthing all as specified and directed(e)Training : On successful commissioning of the plant, training shall be provided on plant operation and maintenance to a team (Engineers and technicians/ operators) as nominated by department for minimum one month. NOTE(i).Final Bill will be released after SEI inspection and rectification of the same if any observation raised by SEI.(ii). Separate weather monitoring system and data monitiring system to measure performance and output to be installed without any extra cost to monitor solar plant health. |
| 15 | Supply, lay and testing LT XLPE insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables (heavy duty) 1100 Volts grade with stranded aluminium conductor of size3.5 core 25 sqmm complete fixed on wall/ roof/ through pipe all as specified and as directed. |
| 16 | S&F for 25mm inner diaHDPE PIPE (black colour) for protection of cable, etc., including suitable clamps on walls complete all as specified and as directed . |
