PROVISION OF ROOF TOP SOLAR POWER PLANT AT VARIOUS MES UNITS UNDER CE AF NAGPUR

(A) PROVISION OF ROOF TOP SOLAR POWER PLANT OF 1.5 MW AT AFS KANPUR UNDER GE (AF) E/M CHAKERI (W1)

Design, supply, installation, testing and commissioning of grid connected Roof top solar photo voltaic power plant without battery for generation capacity of 1500 KWp including comprising of DCR Solar Photo Voltaic panels / Modules with antiglare coating , Inverters/PCUs, Module mounting structure, Net meter (as applicable) , Generation meter, Array Junction boxes, DC junction/ distribution boxes, AC junction/ distribution boxes, Solar grade DC copper cables, AC cables, Lightning arrestor, surge arrestor, Earthings, civil RCC/ PCC/ earth work, Ladders, including preliminary and pre-operative charges & Comprehensive Maintenance charges for 02 years, other plant accessories complete including miscellaneous items required for satisfactory functioning of roof top solar power plant suitable to be installed at buildings no. (a) Hanger No.3- 200 KWp ( Available area- 3000 sqm), (b) Hanger No.4 - 200 KWp (Available area- 3000 sqm), (c) Hanger No.5- 200 KWp ( Available area- 3000 sqm), (d) Hanger No.6- 200 KWp ( Available area- 3000 sqm), (e) Hanger No.7- 200 KWp ( Available area- 3000 sqm) and (f) Hanger No.8-200 KWp (Available area- 3000 sqm) (g) Hanger No.2- 200 KWp (Available area- 3000 sqm) (h)Hanger No.8 Annex- 100 KWp ( Available area- 2000 sqm) alongwith necessary civil and electrical works required for erection and commissioning of Solar PV plant in accordance with prevaling conditions at AF Stn Chakeri, Kanpur(UP) with fixed type structure on tin shed and comprising of following sub-components/sub-systems which shall meet the specifications as given here-in-after and in tender documents complete all as specified and as directed by Engineer-in-Charge:- A. SOLAR PV MODULE Supply and Fixing mono-facial half cut mono-PERC DCR Solar Photovoltaic module shall be MNRE/GOI and ALMM approved having minimum 520 KWp capacity .The PV modules and Solar Cell used should be made in India having efficiency should be minimum 21% and minimum fill factor 75%, temperature co-efficient power shall be equal to or better than - 0.45%/°C.to be used. The rated power of the solar PV module shall have maximum tolerance up to +3%. and no negative tolerance. It shall perform satisfactorily in RH 85% with temperature up to - 40 degree centigrade to + 85 degree Centigrade and should withstand wind resistance on the surface of panel as per max wind

speed selected for design. The PV modules used must qualify to the latest edition of IEC standards or equivalent BIS standards, i.e., IEC 61215/IS14286, IEC 61853-Part I/IS 16170-Part I, IEC 61730 Part-1 & Part 2 and IEC 62804 (PID).For the PV modules to be used in a highly corrosive atmosphere throughout their lifetime, they must qualify to IEC 61701/IS 61701. The PV modules shall be equipped with IP 65 or better protection level junction box with required numbers of bypass diodes of appropriate rating and appropriately sized output power cable of symmetric length with MC4 or equivalent solar connectors. PV modules shall be warranted for their output peak watt capacity. All PV modules should have a nominal power output more than 90% at STC during the first Ten years and more than 80% during next 15 years. Further, module shall have nominal power output of more than 97% during the first year of installation. PV Module shall also be in conformity to latest minimum technical specifications issued by MNRE & IREDA from time to time. DCR Modules should be of MNRE's ALMM & IREDA approved companies and as per latest IEC/IS standards. SPV Modules shall be essentially indigenously manufactured (Made in India) only for the Makes -Havells/ Adani/ Waaree/ Vikram Solar/ Luminous Note : (i) Selection of module power and number of modules shall be according to design based on the available shadow free roof top area & adequate walkway and final selection to be got approved from GE before commencement of work. Adequate number of module to be installed to obtain DC power ouput in KWp. (ii) Each module shall have RFID tag encapsulated/ laminated inside glass. Following information must be mentioned in RFID tag (a) Name of Manufacturer of SPV Module (b) Name of Manufacturer of Solar Cell (c) Month and year of Manufacturing (separately for solar cell and module) (d) Country of Origin for solar cell and module

(e) Peak wattage, Im, Vm, Vsc, Isc and fill factor of the module (f) Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate (g) Unique serial no and model no of module (h) IV curve of module (j) Date and Year of obtaining IEC PV module qualification certificate (k) Name of test lab issuing IEC certificate (l) Other relevant information on traceability of solar cells and modules as per ISO 9001 and ISO 14001. B. MODULE MOUNTING STRUCTURE (MMS) at Hanger No.2,3,4,5,6,7,8 & Hanger No.8 Annexe AFS Chakeri, Kanpur Design, supply/ procure, fixing, module mounting & support structure made of Hot rolled galvanized steel Grade : S390GD(EN 10346)) with min 80 micron thickness zinc coating/galvanization as per relevant IS code .The structure shall be mounting directly on sheet metal roof or penetrating the sheet metal and fixing to the sub structure. The structure shall be non-corrosive and tilted at an angle suitable to obtain peak output power at site from the available solar radiation. The frames consists of channels, purlin, plates, columns etc. including leg assemblies of array structure. Necessary RCC foundation (if applicable) and associated iron work cutting, drilling, welding, jointing, grouting, PCC/ RCC filling, disposing waste material, etc., complete and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 150 km per hour or as per IS-875 Part-3 (2015). The mounting structure is to be installed at sheet metal roof (as existing at site) and the array structure has to be so designed that maximum load is directly on roof structure to avoid any affect on life & strength of structure.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 fasteners, nut, bolts shall be of Stainless Steel of grade SS 304 or hot dip galvanized and panel mounting clamps shall be of aluminium and must sustain the adverse climatic conditions. The minimum clearance of the lowest point of the structure from the tin shade should be more than 100mm.The module mounting structure shall be securely anchored to the roof structure. The base of the structure should be connected on the Purlin of the tin shed with the proper

riveting. All structure members should be of minimum 2 mm thickness. The contractor quoted rates shall be deemed to inclusive of all civil works for mounting structure and its foundation including roof treatment after grouting and civil works to prevent seepage and damage to roof structure. Contractor to submit structural design and drawings duly vetted by professor of IIT/NIT or by govt institute authorized by MNRE or NISE. Structural material shall be corrosion resistant and electrolytically compatible with the materials used in the module frame, its fasteners, nuts, and bolts .Adequate spacing shall be provided between two panel frames and rows of panels to facilitate personnel protection, ease of installation, replacement, cleaning of panels and electrical maintenance. Note: (i)The contractor shall submit structural design on Stad-Pro based or equivalent software on wind load 150 Kmph, live load and dead load of structure with solar panel & seismic zone, wind speed zone of Chakeri, Kanpur( UP). Any deflection to the mounting structure shall be as per IS 800:2007. Structural design of the mounting structure should be carried out by a consultant/ company approved by the GE. The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines for ease in maintenance. (ii) The structure shall be designed to withstand operating environmental conditions for a period of minimum 25 years. (iii) Any damage done to water proofing/ Roof structure during installation shall be made good by the contractor at no extra cost. Water Leak Protection has to be ensured with Pure Epoxy Resin based chemical anchoring system, wherever damage to structure occurs. (iv) MMS steel shall be as per latest IS 2062: 2011 and galvanization of mounting structure shall be in compliance of IS 4759. (v) The PV array structure design shall be appropriate with a factor of safety 1.5 min or higher factor of safety. (vi)Two numbers of anti-theft fasteners of Stainless Steel on two diagonally opposite corners of each module shall be provided. C.POWER CONDITIONING UNIT(PCU)/SOLAR GRID TIED STRING INVERTER at Hanger No.2,3,4,5,6,7,8 & Hanger No.8 Annexe AFS Chakeri, Kanpur Design, supply, installation, testing and commissioning 3 phase PCU/ string inverters of matching capacity with total SPV wattage of appropriate capacity as per site/ design approved of suitable capacity as given 1500KW AC (nominal power), suitable to convert DC

power of installed Solar PV module/ array in to AC power output for planned building mentioned under Para(1), for further feeding to grid ,if required, confirming to IEC:61683/ IS 61683, IS 16221 (Part 2), IS 16169 and IEC 60068-2 (1,2,14 & 30)/IEC : 62093 (as applicable)/ equivalent BIS standard for efficiency, for safety and for reliability. The inverters shall consist of data loggers for monitoring of solar power generation and solar meters of suitable specification to be installed for complete/ utilization of solar power generated on grid with in the desired location only. The inverter should have MODBUS, PROFIBUS, ETHERNET common ports. 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. There should not be any clipping/ scalping losses due to incorrect DC/AC ratio cap selection of Inverter. The PCU/ inverter shall have an overloading capacity of minimum 10%.The output power factor of the inverter should be suitable for all voltage ranges or sink of reactive power, the inverter should have internal protection arrangement against any sustain fault in the feeder line and against the lightning on the feeder Monolithic design of inverter is not permitted. Make:- HAVELLS/SUNGROW/ GROWATT/ POLYCAB or equivalent make same as the make of PV Panels as approved by GE. General Features of Solar Grid tied Inverter: (a) Standby operation consumption (at night) : < 2 W (b) No load losses: Less than 1% of rated power (c) Allowable Relative Humidity rage : 0 ~ 100 % (d) Ambient temperature range : - 25 degree centigrade to 60 degree centigrade (e) Active power Adjustable range : 0 ~ 100 % (f) Topology : Transformerless (g) Integrated DC switch : Yes (h) Protection : The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741) equivalent IS, DC Reverse Polarity protection, Output overcurrent & output over voltage protection, ground fault monitoring, grid monitoring, AC and DC short circuit current and over current, AC and DC over voltage and over temperature protection., AC & DC Surge protection, prevent lightning damage etc.

(j) Ingress Protection : IP 65 or better (k) Remote Monitoring: Wifi/ GPRS/ RS 485 as necessitated by site conditions & directed by GE. Web based monitoring with historical data storage for analysis (l) Display: LED Warranty : 5 years Min (n) The inverter shall adjust voltage and frequency levels to suit the grid. (o) The inverter shall be self-cumulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronize maximum within one minute or less time. (p) Maximum Power Point Tracker (MPPT) shall be integrated in the inverter/ PCU to maximize energy drawn from the array. Charge controller (if any)/ MPPT units environmental testing should qualify IEC 60068-2 (1,2,14,30)/ Equivalent BIS standard. (q) The inverter shall have suitable Nos of protected inputs (as per design) and outgoing shall be protected by ACB/MCCB. (r ) All inverters/PCUs shall be IEC 61000 compliant for electromagnetic compatibility, harmonics, Surge, etc. (s) 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 component failure or any deviation of parameters beyond the inverters safe operating range 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. (t) Typical technical features of the inverter shall be as follows:- i). Switching devices: IGBT/MOSFET

ii). Control: Microprocessor/DSP iii). Nominal AC output voltage and frequency: as per CEA/State regulations iv). Output frequency: 50 Hz v. Grid Frequency Synchronization range: as per CEA/State Regulations vi). Ambient temperature considered: -20°C to 60°C vii). Humidity: 95 % Non-condensing viii). Protection of Enclosure: IP-54 (Minimum) for indoor and IP-65(Minimum) for outdoor. ix). Grid Frequency Tolerance range: as per CEA/State regulations x). Grid Voltage tolerance: as per CEA/State Regulations xi). No-load losses: Less than 1% of rated power xii). Inverter efficiency (Min.): >93% (In case of 10 kW or above with in-built galvanic isolation) >97% (In case of 10 kW or above without inbuilt galvanic isolation) xiii). THD: < 3% xv. PF: > 0.9 (lag or lead) xiv). Should not inject DC power more than 0.5% of full rated output at the interconnection point and comply with IEEE 519. (u) Invertor should provide remote monitoring system for accessing following parameters viz grid voltage and frequency, DC voltage and power from solar panels, inverter output power, and the total energy produced (Daily, Monthly, quarterly , Half Annually and Yearly). Additionally, parameters like load power (consumption), and system status (e.g., "run" or fault codes) etc. Web based or app based system to display these parameter with cyber security encryption for remote monitoring of theses parameter to be be provided by OEM. The input DC & output AC technical specification of Inverter are as under :-. Input(DC) (a) Max input Voltage : 1100 V (b) Rated Input Voltage : 600 V (c) Start-up input voltage : 200 V (d) Operating input DC voltage range : 300 - 950 V (e) No of independent MPPT : Must be suitable to accommodate installed DC SPV array & their cap. Min 2 to 10 (as per approved design based on No of array strings) (f) MPPT operating voltage range : 180 - 960 V (g) Max input DC Current : As per approved array string design

(h) Maximum input short circuit current : As technically required & suitable as per approved array string design (j) No of Protected DC inputs/ strings : 6 to 20 (as per approved design based on No of array strings) Output (AC) (a) AC grid connection type: 3/N/PE (b) Rated Power at unity PF: Suitable for SPV DC cap installed at building. (c) Max AC output power : 110% of rated power (d) Max AC output Apparent power : As per Inverter rated output (e) Max AC output Current : As per Inverter rated output (f) Max AC fault current : As per Inverter rated output (g) Nominal Output Voltage : 415 V (h) Grid Output voltage range : According to SEB standard (j) Rated Grid Frequency : 50 Hz (k) Output Frequency : 50 Hz ± 3Hz (l) Power factor : > 0.9 (Lag or lead) (m) Thermal Harmonic Distortion i (THDi) : < 3% (n) MPPT Efficiency : > 99% (o) EU efficiency : 97.5% (p) No of Protected DC inputs All the Inverters should contain the following clear and indelible Marking Label Warning Label as per IS16221 Part II, clause 5. The equipment shall, as a minimum, be permanently marked with: (i) The name or trademark of the manufacturer or supplier. (ii) A model number, name, or other means to identify the equipment, (iii) A serial number, code or other marking allowing identification of manufacturing location and

the manufacturing batch or date within a twelve-month time. (iv) Input voltage, type of voltage (a.c. or d.c.), frequency, and maximum continuous current for each input. (v) Output voltage, type of voltage (a.c. or d.c.), frequency, maximum continuous current and for a.c. outputs, either the power or power factor for each output. (vi) The Ingress Protection (IP) rating D. DC DISTRIBUTION / ARRAY JUNCTION BOXES at Hanger No.2,3,4,5,6,7,8 & Hanger No.8 Annexe AFS Chakeri, Kanpur Supply and Fixing DC junction boxes of suitable capacity, rating & Nos (as per design approved)/ OEM recommendations having suitably rated inputs and output terminals 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 Plastic with IP 65 protection or better standard in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and suitable arrangement for earthing connections as per relevant standard. Make:MNRE/GOI approved. (e)The incomming and outgoing cables from box, panel shall be properly sealed through proper glands. (f) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V or system voltage as approved designed 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. E. AC DB PANEL at Hanger No. 2,3,4,5,6,7,8 & Hanger No.8 Annexe AFS Chakeri, Kanpur - 08 Nos”. AC Disconnect switch (MCCBs) shall be of matching capacity as per inverter rating. Make:- Schneider/Siemens/ABB/L&T/Havells or equivalent as approved by GE for each location. ACDB Panel of suitable rating (Inverter AC capacity) shall be provided for interconnection of Solar Power Plant with proposed LT Panels near existing transformer and further connected to grid. Each ACDB shall be made of CRCA sheet of appropriate 2 mm thick duly Powder Coated as per colour approved by the GE. It shall be dust, water & vermin proof arrangement with IP 56 protection .