UPGRADATION AND AUGMENTATION OF ELECTRIC SUPPLY INCLUDING ROOF TOP SOLAR SYSTEM IN BHARATPUR MIL STN

Amount

ROOF TOP SOLAR PLANT

PV Modules :- Each Module consist of capacity not less than 550wp, Halfcut Mono crystalline PV Modules. Design, Supply, Installation, Testing and Commissioning of Solar PV Module. The PV modules used must qualify to the latest edition of IEC PV module qualification test or equivalent BIS standards. PV modules must be tested and approved by one of the IEC authorized test centers. Module Warranty :- The manufacturer should warranty the Solar Module(s) to be free from the defects and/or failures specified below for a period not less than twenty five (25) years from the date of commissioning. All photovoltaic modules should carry a linear performance warranty from second year. The solar PV modules offered should not degrade more than 2.5% for first year and not more than 0.7% from second year of its rated power. During the first 10 years and entire life span of 25 years the solar modules should not degrade more than 10% and 20% of its rated power respectively. The PV Modules should comply following IEC:- IEC 61215/BIS 14286, IEC 61646 / Equivalent BIS , IEC 62108 / Equivalent BIS , IEC 61730(Part I & II) / Equivalent BIS , IEC 61701 / BIS 61701 , IEC 600068-2-68.

(a) To obtain 550 KWp minimum required Numbers of Half cut Mono crystalline solar PV modules each having efficiency more than 21% at standard test condition, fill factor more than 0.75, plant performance ratio more than or equivalent to 75% & made of high transmittivity glass and glass front. surface shall give high encapsulation gain. (transmittance above 90% and bending less than 0.3%) Electrical parameters of 550 Wp solar PV module under STC of irradiance 1000 W/m2 & temperature 25°C will be as under :- Max Peak power Pmax :>550 Wp Current at Pmax Ipm : 13 A (Approx) Voltage at Pmax Vpm : 42 Volt (Approx) Short circuit current Isc : 14 A (Approx) Open circuit voltage Voc : 50 Volts (Approx)

(i) Rated output of modules shall have positive tolerance of 3-5% & no negative tolerance is allowed. (ii) It shall perform satisfactorily in relative humidity 85 ± 5% with temperature -10 °C to +85°C (Cell) and should withstand wind 150 Km/Hr on the surface of the panel. (iii) PV modules must be warranted for their output peak watt capacity, which shall not be less than 90% of the initial value at the end of 10 years and 80% of the initial value at the end of 25 years. (iv) Each module shall have RFID tag encapsulated with Solar Cells bearing the following details. RFID reader will be provided by contractor.

● Name of manufacturer of PV module ● Name of manufacturer of solar Cell ● Month and year of manufacture (Separated for cell & module) ● Country of origin (separately for solar cell & module) ● Peak wattage, Im, Vm and fill factor of the module. ● Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate. ● Unique Serial No and model No of Module. ● I-V curve of Module

(v) The temperature co-efficient for the module shall not be more than 0.50%/°C. (vi) Every module must have by pass diode of suitable capacity. (vii) PV module must conform to latest edition of IEC 61215/IS14286. In addition, the modules must conform to IEC 61730 Part-I & II for construction and testing & safety qualification & conforming to IEC 62804 PID. (viii) It shall also in conformity of latest minimum technical specifications issued by MNRE from time to time. Modules should be of 144 cells configuration and should be of MNRE approved Companies/agencies in catagory/rating ''SA-1A''

(ix) Provision of earthing & earth strip/cables etc. for earth for solar PV module/Array etc. as per latest IS/MNRE norms to be provided and the cost of the same is to be included in this item and no extra amount will be paid to the contractor on this account. (x) RFID reader to be provided by contractor. Total 07 location will be considred as below:- (i) Building No P-24 (260 Sqm) - (30 Kw) - 1 No (ii) Building No P-26 (3900 Sqm) - (30 Kw) - 1 No (iii) Building No P-164 (600 Sqm) - (30 Kw) - 1 No (iv) Building No P-01 (956 Sqm) - (30 Kw) - 1 No (v) Building No P-106 (400 Sqm) - (30 Kw) - 1 No (vi) Building No P-71 (300 Sqm) - (30 Kw) - 1 No (vii) Building No P-292 (676 Sqm) - (30 Kw) - 1 No NOTE: (i) The design of Solar power plant to be vetted by GE. (ii) Only Make in India Solar module & cell should be used.

Module Mounting Structure :- Design , Supply , Fixing Module Mounting/Fixed , Structure (For SPV Plant of Combined Capacity of 210KW) Made of Hot Dipped Galvanized structure 80 microns zinc coating as per IS 4759 Including construction of nacessary RCC Foundation and assosiated work (Cutting,grouting,disposal material etc complete) and suitable to withstand wind speed upto 170Km/hour as per IS 875 Part-III. Each Structure should have angle of inclination as per the site condition to optimize the maximum power generation in year and provisions for titling of solar pannels for seasonal variation. However to accommodate more capacity the angle inclination may be reduced until the plant meets the specified performance ration requirement complete all as per recommended by manufacturer and approved by GE after vetting from NIT/IIT as specified and directed. Note - structure to be design based of building wise location and capacity. The structure to be designed as per OEM drawing considering the block condition.

The responsibility of testing and installation of structure is of contractor However the design will be approved by GE before execution of work. Total 07 location will be considred as below:- (i) Building No P-24 (260 Sqm) - (30 Kw) - 1 No (ii) Building No P-26 (3900 Sqm) - (30 Kw) - 1 No (iii) Building No P-164 (600 Sqm) - (30 Kw) - 1 No (iv) Building No P-01 (956 Sqm) - (30 Kw) - 1 No (v) Building No P-106 (400 Sqm) - (30 Kw) - 1 No (vi) Building No P-71 (300 Sqm) - (30 Kw) - 1 No (vii) Building No P-292 (676 Sqm) - (30 Kw) - 1 No Note:- (i) Rate should be included fibre reinforced UV resistant elastomeric liquid and heat reflective coating after scraping of surface. (ii) Rate for making good is deemed to be included for making roof leakage/seepage proof.

Supply, installation and testing of the proposed system shall consist of three (3) numbers of 10 kW hybrid off-grid inverters, configured for a total capacity of 30 kW for rooftop solar application. The inverters shall be of advanced hybrid design, capable of operating in both off-grid and grid-interactive modes, with seamless switching between solar, battery, and optional grid inputs to ensure uninterrupted power supply. Each inverter shall have an inbuilt MPPT charge controller and support a rated continuous output of 10 kW, delivering a pure sine wave, three-phase AC output at 230V/400V AC ±5%, 50 Hz ±0.5 Hz, with an output power factor of 0.8 lagging to unity. The inverter system must support intelligent load sharing, synchronization, and parallel operation between units for efficient performance under varying load conditions. The system shall support a wide PV input voltage range of 350V to 650V DC with a maximum PV voltage of up to 750V DC and include at least 2 independent MPPT trackers per inverter for optimized solar energy harvesting. The inverters shall be compatible with high-voltage battery banks and be suitable for maintanance free Lithium-ion batteries for 30KW storage.

The proposed battery bank shall have a total storage capacity of 30 kW, configured for a nominal system voltage of 360V DC (or as per inverter manufacturer specifications), and shall be capable of providing sufficient backup as per site requirements. The battery bank shall include all necessary protections, interconnections, battery racks, and monitoring provisions. (Cost of Battery is deemed to be included in item rate) The inverter shall operate with an efficiency of ≥ 94%, feature overload handling up to 110% for 60 seconds and 150% for 10 seconds, and provide integrated protections such as input/output over-voltage, under-voltage, over-temperature, battery reverse polarity, short circuit, and surge protection. Each inverter must include an intelligent display panel (LCD/TFT) for monitoring key parameters like PV input, load output, battery status, energy yield, and system faults. Additionally, the system shall support communication interfaces including RS-485, CAN, Ethernet, and optionally Wi-Fi/GPRS for remote monitoring via mobile app or web portal.

Cooling shall be through forced air (fan-cooled), and the inverters shall be suitable for operation in ambient temperatures ranging from -10°C to +55°C. Enclosure rating shall be minimum IP20 for indoor or IP54/IP65 for outdoor use. All equipment must be compliant with international standards including IEC 62109, IEC 62040, IEC 61683, ISO 9001/14001, CE, BIS, and MNRE-approved where applicable. The system shall include all required accessories like AC/DC distribution panels (as per site requirements), MC4 connector alongwith cable, fuses, MCBs, SPDs, mounting hardware and shall be installed and commissioned as a complete project solution and site requirement. The inverter shall be supplied with minimum warranty of 5 years. Note: Contractor will submit the detail specifications of battery alongwith warranty certificate (for 10 years) before installing battery rack with parameters, efficiency (>90%), yearwise storage loss, lifetime. The battery efficiency should not be below the specifications by the manufacturer over the period of time, otherwise complete battery should be replaced by the contractor without any extra cost.

DC Cables, HDPE Conduit ISI UV resistant, and supporting Accesories :- One Core 4 Sqmm Cu 1.5kV , UV protected XLPO Solar Grade Cable Type 1. IS-1554 Part-1,Temp range:- 10Deg C to +120Deg C, Voltage range-1.5KV,excellent resistance to heat, cold, water, oil, UV radiation, flexible. Life of cable-more then 25 year. Cable should be annealed Hight conduction copper conductor with XLPO insulation, UV protected. XLPO having working voltage -1500V,UV resistant for outdoor installation IS/IEC 60227/IS 694,For AC/DC cables Voltage drop= 2% limited. The DC cables from the SPV module array shall run through a UV-stabilized PVC conduit pipe of adequate diameter with a minimum wall thickness of 1.5mm. All cables and connectors for use for installation of solar field must be of solar grade which can withstand harsh environment conditions including High temperatures, UV radiation, rain, humidity, dirt, salt, burial and attack by moss and microbes for 25 years and voltages as per latest IEC standards. DC cables used from solar modules to array junction box shall be solar grade copper (Cu) with XLPO insulation and rated for 1.1kV as per relevant standards only. Cable Routing/ Marking: All cable/wires are to be routed in a HDPE Conduit ISI UV resistence and suitably tagged and marked with proper manner by good quality ferule or by other means so that the cable easily identified. In addition, cable drum no. / Batch no. to be embossed/ printed at every one meter

Supply, fixing and testing of DC Cables, HDPE Conduit ISI UV resistant, and supporting Accesories :- One Core 6 Sqmm Cu 1.5kV , UV protected XLPO Solar Grade Cable Type 1. IS-1554 Part-1,Temp range:- 10Deg C to +120Deg C, Voltage range-1.5KV,excellent resistance to heat, cold, water, oil, UV radiation, flexible. Life of cable-more then 25 year. Cable should be annealed Hight conduction copper conductor with XLPO insulation, UV protected. XLPO having working voltage -1500V,UV resistant for outdoor installation IS/IEC 69947,For AC/DC cables Voltage drop= 2% limited. The DC cables from the SPV module array shall run through a UV-stabilized PVC conduit pipe of adequate diameter with a minimum wall thickness of 1.5mm. All cables and connectors for use for installation of solar field must be of solar grade which can withstand harsh environment conditions including High temperatures, UV radiation, rain, humidity, dirt, salt, burial and attack by moss and microbes for 25 years and voltages as per latest IEC standards. DC cables used from solar modules to array junction box shall be solar grade copper (Cu) with XLPO insulation and rated for 1.1kV as per relevant standards only. Cable Routing/ Marking: All cable/wires are to be routed in a HDPE Conduit ISI UV resistence and suitably tagged and marked with proper manner by good quality ferule or by other means so that the cable easily identified. In addition, cable drum no. / Batch no. to be embossed/ printed at every one meter.

Supply and fix other Misc items such as Ferrules-0 to 9 (Each number is hundred in one packet)a to z (Each letter is hundred in one packet) PU Foam 750ML, Silicon Sealant,Electrical Tape,RED, YELLOW, BLUE, BLACK, GREEN.

Supply, laying and testing cable XLPE Insulated screened PVC bedded, galvanized steel strip or wire armoured, electric power cables, heavy duty, 1100 Volts grade with stranded aluminium conductor of size 35 sq mm 3.5 core, complete all as specified & directed.

M&L earthing complete as per electrical plate No. 3 of MES SSR Part-I with galvanised earth plate electrode 60 cm x 60 cm x 6.0 mm thick, buried directly vertically in ground in a pit depth not less than 2.25 metres below ground level with top edge of earth plate at a depth not less then 1.5 metre below normal ground level connected to and including Galvanised iron strip 32mm x 6mm by means of bolts, nuts check nuts and washers of brass. Earthing strip shall be protected by galvanised iron or steel pipe 40 mm bore light grade and connected to continuous earth wire on pole / test point. Watering pipe shall be 20 mm bore GI medium grade. The earthing shall be of inclusive of excavation & earth work in any type of soil, charcoal, salt, funnel PCC pit and RCC cover complete all as specified & tested complete.

S&F earth continuity conductor or main earthing lead fixed to wall or on batten or recess or chases or buired in ground or drawn in conduit/pipe or fixed to poles or any other indicate situation for 25 x 3 mm aluminium strip.

M & L Earth continuty conductor or main earthing lead fixed or buried in ground or drawn in conduit/pipe or fixed to poles or any other indicates situation or looping earthing etc. as required by using galvanised iron 32 x 6 mm strip as earthing lead all as specified and directed by Engineer - in - Charge.

S&F Air termination, single pointed aluminium rod 12 mm dia and 300 mm long.

S&F monkey guard PVC spikes having angular spikes, translusent, suitable to tie in GI frame, GI pipes, fixed on wall etc around the panels to the full length of perimeters, on the border post, structure etc all as specified and as directed by Engr-in-charge.

Supplying and laying rainforced precast concrete cable cover, class LV, type 1, flat, size 200 mm x 150mm x 40mm

Supply & Fix of Solar Meter for monitoring of monthly production of the plant with CT, PT and related accessories as specified and directed.

Notes for Serial Item Nos. 1.0 to 15.0 above:- 1. Minimum five (05) years warranty from the date of completion of work as certified by GE for Roof Top Solar Plant (i.e. Item No. 1.0 to 15.0) shall be submitted by the contractor. 2. The repair/replacement cost during this warranty period to make the solar system fully functional satisfactorily is deemed to be included in the quoted rates by the contractor.

EXTERNAL WATER SUPPLY

Supply installation, testing & commissiioning of Gnaular chlorination COMBINE dosing pump and motor (Interconnected) FRP solution preparation cum settling tank 170 Ltrs capacity fitted with lid, port hole, inlet/outlet/drain connection sludge depositin facility etc and fitted with 900 RPM motor & PVC agitator combined with 100 Ltrs capacity dozing/ storage tank with lid, port hole, inlet/ outlet/ drain connection level gauge etc either fitted with 900 RPM motor and PVC agitator or with out motor and agitator as all specified and completed (preparation tank 170 Ltr, Dozing pump 100 ltr)

S&F GI tubing medium grade marked including all fittings laid in tranches/ fixed on wall of size 20mm bore all as specified and directed

M&L for Gun metal gate or globe valve with iron wheel head (ISI Marked), screwed both ends for iron pipe and fixed of size 20mm bore

EXTERNAL ELECTRIC SUPPLY

M&L for cable protection cover with sub Class`B` bricks old size laid dry, flat perpendicular across the cable in trenches specified & directed by Engg in charge.

Supply, laying and commissioning XLPE insulated screened, PVC bedded galvanised steel strip or wire armoured electric power cables (heavy duty) with aluminium conductor 11000 volts grade , suitable for HT 11 KV (E) System laid in trenches/ ducts/ encased in GI pipe/ fixed to poles including road bore with GI pipe upto 50 RM jointing & testing complete all as specified and dircted of cross sectional area 120 sqmm 3 core

M&L for cable end termination, jointing kit, HT 11 KV grade,heat shrinkable, indoor type complete with jointing material suitable for HT XLPE cable 120 sqmm x 3 core complete all as specified and directed .

M&L for cable, jointing kit, HT 11 KV grade, heat shrinkable, straight through type complete with jointing material suitable for HT XLPE cable b) 120 sqmm x 3 core complete all as specifi\ed and directed .

M&L for cable end termination, jointing kit, HT 11 KV grade, heat shrinkable, outdoor type complete with jointing material suitable for HT XLPE cable 120 sqmm x 3 core complete all as specified and directed.

Supply, install, erection, commisioning and testing HT 11 KV.outdoor extensible type , cubical , 3-way (RRL-2LBS+1VCB)), Gas (SF6) Insulated RMU including comprising with 2 Nos x LBS (Load break switches) and 1 No x VCB of rating of each 630 Amp 3 phase 50 cycles 12 KV, 20kA/ 3 Sec Ambient temperature - (-5 degree Celsius to +55 degree Celsius), Manual Operated SF6-Breaker having copper bus bar 1000Amp , cast resin tank with , LV Current transformer compatible with self powered relay & 11 KV regin cast PTs (one set of 3 Nos) with saperate metering chamber complete including comprising of following all as specified and directed.

Each Load break switch will include the following: (i) SF6 three position switches with position ON-OFF-EARTH (ii) Manual Operated spring mechanism ON-OFF-EARTH for 630A Load Break switch. (ii) Mechanical indicators for position ON-OFF-EARTH. (iii) Mimic diagram at the front facia of RMU (iv) Socket for Capacitive Voltage Indicator ( "Live Cable “ Indicating LEDs energized through Capacitive Voltage Dividers.) (v) Padlocking facility (vi) Cable box suitable for cable termination of 1 No. 3 core 120 sq.mm. XLPE cable. ''Each Circuit Breaker will include the following: (i) Manually operated SF6 insulated VCB 3 pahse 630A 12 KV rating circuit breaker having resin cast tank and Earthing Switch with full making capacity with position ON-OFF (ii) Manual Line disconnector with three position switches ON-OFF-EARTH (ii) Anti reflex operating handle. (iii) Auxiliary switches 6 NO + 6NC with wiring (iii) Shunt Trip coil (230V AC) for external trip signal.

Accessories with each RMU includes : (i) Operating handle - 1 No (ii) Right angled Cable boots- 4x sets Make Siemens /equivelent. (iii) Capacitor Voltage indicator type HR-ST - 4 Nos. Make Hortsmann. Saperate Metering chamber includes :- (i) 3 Phase, 3 Limb draw out type bus connected Epoxy potential transformer, ratio 11KV/√3/110V/√3 AC accuracy 1.0, burdon 50 VA - 01 (ii) Digital type voltmer -1No (iii) RYB indication - 1set Note :-(i) RMU shall be outdoor PCC platform mounted. (ii) Civil work PCC platform ) for RMU is deemed to be included in the unit rate quoted by contractor. The PCC platform details as per the manufacturer's instructions. Note:- (i) Before procurement, specifications, drawings & design shall be submitted to GE and get it approved by GE. (ii) Factory test to be done in presence of rep of Accepting Officer before despatch. The cost incurred for factory inspection will be paid by contractor.

M&L Earthing complete as per electrical plate No 3 of MES SSR Part I with galvanised steel plate earth electrode 60 cm x 60 cm x 6.0mm, burried directly vertically in ground in a pit of depth not less than 2.25 metres below ground level with the top edge of earth plate at a depth not less than 1.5m below normal ground level connected to and including galvanised iron or steel earth strip lead 32X6mm by means of bolts, nuts, check nuts and washers of galvanised iron or steel earthing wire protected by galvanised iron or steel pipe 40mm bore light grade and connected to continuous earth strip on pole/ test point. Watering pipe shall be 20mm bore GI medium grade including excavation and earth work in any type of soil, PCC pit and RCC cover complete all as specified and directed by Engineer in Charge

EARTHWORK & EXCAVATION

Excavation in trenches, n. exc 1.5 Mtr wide and n. exc 1.5 Mtr in depth for foundation etc or for shafts, wells, cess pits, manholes, pier holes, laying cables errection of poles / struts/stays etc n.exe 10 Sqm on plan not exceeding 1.5 metre in depth and getting out in soft/loose soil as specified & directed by Engg in charge.

Returning, filling in including spreading, levelling, watering and well ramming in layers n. Exc 25 cm thick as specified & directed by Engg in charge.

Removing of excavated soil to a distance n. Exc 50 Mtr and depositing where directed at a level n. Exc 1.5 Mtr above the starting point specified & directed by Engg in charge.

Supply & spread unwashed dry river sand for sand cushioning for covering the under ground cable in trenches specified & directed by Engg in charge. (Note :- Punning thickness shall be measured.)

M/s godara infratech and power industries (BID ID -3369556)

Subhash Infraengineers Pvt. Ltd. (BID ID -3367412)