PROVN OF ON-GRID SOLAR PLANTS 106 KWp IN HQ 33 WEU ,PM HALL (P-177A), SUKTHANKAR BLOCK (P-400) AND RNS GALLEY, NAVAL BASE KOCHI

Amount

Designing, supply, erection, installation, commissioning and testing of roof top solar photovoltac power plant (ON-GRID) on existing building No P-400, (Sukthankar Block) capacity 40KWp (AC) fixed tilt type, and power evacuation at 415V 3 Phase system all as per guildelines/norms issued by MNRE & Indian metrological dept approved solar radiation data viz direct normal irradiance, global horizontal irradiance etc complete comprising with the following:-

PV MODULE

(a) Supply, errection installation, commisioning and testing solar PV modules capable for generating 40 KWp(AC) electricity at 415V 3Phase system. These solar PV modules shall be as per approved design parameters, with mono perc silicon solar cells minimum of 370 Wp or above / Panel & efficiency not less than 20-22 %, confirming to IEC 61215, IEC 61730, IEC 61701, IEC 61646, IEC 62108 and must be tested and approved by one of the IEC authorised test center. Solar PV module should be of approved indian brand only and qualify under the domestic content requirement (DCR) norms of NVVN/SECI and testing requirement by MNRE the PV modules will be warrented for a minimum period of 25 years. Solar PV modules used in system must be warrented for their output peak watt capacity, which should not be less than 90% at the end of ten years and 80% at the end of twenty five years. Each solar PV modules must use RF identification tag the following information must be mentioned in RFID used in each module.

(b) Name of maufacture of PV module, Name of manufacture of solar cell, month & year of manufacture (for solar cell & module) country for originie ( It is manadatory to use cells and modules manufactured in India). I-V curve of module, wattage, L-M, V-M & FF for the module, unique serial No & model No of the module,Date and Year of IEC PV qualification certificate. The PV modules used in solar power projects must qualify the latest edition of the following Inernational Electrotechnical Commission (IEC) OV modules qualification test or equivalent BIS standards. The PV module must be tested and approved by one of the IEC authorised test and centers. In addition a PV module qualification test certificate as per IEC standard, issued by EDTC, Bangalore or solar energy center will aso be valid.

(c) BIS standards :- Mono perc solar cell modules : IEC 61215/BIS 14286, thin film modules : IEC 62108/equivalent BIS, concentrator PV module : IEC 62108/ equivalent BIS, PV modules sandy environment : IEC 600068-68, PV modules corrosive atmosphere : IEC 61701/BIS 61701, PV modules ( for construction & safety) : IEC 61730 (part I & II) equivalent BIS

(d) Supply and lying and testing required qty of DC solar grid cable 1 x 4 sqmm multi strand tinned copper conductor, confirming to relavant IS, weather proof UV resistant with operating temperature upto 120 degrees, minimum rated volatge 1100V for inter connection of SPV modules including suitable size of cable lugs, male & female MC4 connectors & joints etc.

(e) Supply, errection, installation, commissiong and testing required qty of junction boxes/SMbs of 40 KWp AC output all as per approved design & layout plan for combining output of solar PV modules DC rating of breaker designed rating with string fuses on both postive and negative side of string complete with SMB volatge rating 1000V, copper busbar, weather proof enclosure with NEMA rating complete.

(f) S&L and testing required qty of DC solar grid cable 2 runs 1 x 16 sqmm multistrand tinned copper conductor through PVC conduit 20mm dia ISI marked, weather proof UV resistant with operating temperature upto 120 degrees for connection from string junction box to invertor/PCUs including suitable type of cable lugs, male & female MC4 connectores & joints etc

(g) Supply, errection, installation, commissioning and testing solar PV modules capable for generating 40 KWp (DC to AC 415V in three phase system ) all as per approved design parameters & capable of generating output voltages of 415V AC at rated load condition with efficiency not less than 98% conforming to IEC 600982-2/VDE standards with power reduction, LVRT with protection for anti-islanding, ground fault mentioning, grid monitoring,AC & DC over voltage and undervoltage protection, AC & DC short/ over current protection, and DC reserve polarity protection, graphic display etc all as specified and directed.

POWER CONDITIONING UNIT (INVERTER UNIT) (h) Nominal voltage : 415V +/-10%, 3 phase, 50Hz, control : Microproccessor/DSP, switching device: IGBT/MOSFET, Grid freq synchronization : 3 Hz or more, Ambient temperature -20 degree C to 50 Degree C, Humidity : 95% non- condensing, protection of enclosure : IP 20 (Indoor)/IP 65 (outdoor), No load losses <1% of rated power, Inverter efficiency :>97% (without inbuilt galvanic isolation), >93% (with inbuilt galvanic isolation), PF>0.9, thd,<3%. The inverter should have inertnal protection arrangement against any sustainable fault in feeder line and against the lighting on feeder, should have isolation trasformer, the inverter generated harmonics, filcker,DC injection limits, volt range frequency range and anti-islanding measures should follow the latest guidelines/IEC 62116/BIS code.

(j) Technical requirement for BoS items of SPV plants: Technical specifiaction of power conditioners including MMPT & protection for use in grid solar power plant are as under:- Environmental testing : IEC 60068-2/EqIS, efficient measurement :IEC 616833/ is 61683, product safety :IEC 62109-1 & 2, Grid connectivity interface:IEC 61727 : 2004, Inerconnection PV investors: IEC 62116, Electromagnetic interface:IEC 610002,3,6, Batteries: As per relavanet BIS std, Cables:IEC 60227/IS 3043:1986, Earthing /Lightening :IEC 62561/IS 3043:1986, Surge arrestors:IEC 60634-5-53/ revevant IS code, surge arrestors :IEC 60634-5-53/relevant IS code, circuit breakers:IEC 60947,11, III 60947 EN 50521, junction boxes & enclosures : IP 65/IP 21, meters as per DISCOM guildelines/IS/ 16444, grid connectivity : as prevalent in the state/as per CA, warrenty: the mechanical structures, electrical works and SPV power system, must be warrented for a minimum of 5 years.

(k) Supply, installation, commissiong and testing of LT 415V grid pannels outdoor type for power evacuation and grid intercoonection systems with the existing LT panel directed by Engineer-in-charge at site with rated capacity of circuit breakers at both side, busbar, CTs, digital metering, relays gross metering etc all as approved design parameters with totally enclosed, fully interlocked, metal clad powder coated enclosure including PCC foundation complete. Note: Earthing work & LT cable of size required for connection of inverter to grid panel shall be measured and paid seperately

(l) modification of existing LT panel/Feeder pillar box by extension of busbar /cable for meter connection with and including MCCBs off rated capacity, sheet metal enclosure complete & connecting.

(m) Material and labour for required qty of lightning protection and earthing for SPV modules etc as per IE rule, MNRE guide line & BIS all as per approved plan complete with galvanised earth plate electrode 600 x 600 x 6mm thick burried directly in ground vertically (earthpit not less than 2.25mtr deep below normal ground level) with top edge of plate not less than 1.5mtr below normal ground level connected to and including GI strip 32 x 6mm size protected with GI medium grade pipe 40mm dia for earth electrode upto test point by means opf GI nuts, bolts, check nuts and washers including earth work excavation, PCC (1:3:6) type C1 pit and RCC cover (1:2:4) type B1 and funnel, with necessary charcoal, salt etc complete all as per electrical plate No 3 of SSR part - I

(n) M&L for aluminium strip of size 25 x 3mm thick for roof/down conductor fixed on isulators/saddles of suitable size for SPV modules lightning protection (o) Material & labour for artistic painting in black letters with yellow back ground for solar array structure,junction box,earth chambers,PCU's,DB's etc all as specified and as directed.

(p) S&L synthetic rubber mat of size 2m x 1m x 10mm -01 No each inverter panel.

(q) MMS works will be measured and paid separatly under relevend item below

Note (i) (a) Before quoting the bid, Contractor or his authorised Engineer / consultant must visit the proposed site to study the site condition. (b) Before commencement of work, contractor shall submit design details along with working drawings & lay out plan building wise including quantity and make required for each items to Accepting Officer for approval. The working drawing must includes the following:- (i)Single line/Schematic diagram of Solar PV power plant (ii)No.of solar panels (iii) Designing of Solar PV strings layout, SMBs / junction boxes , Cable route etc (iv) Details of Mounting Structure tilting angle, size of sections, junction box,position, LT Cable Network (DC & AC) layout, Lightening Protection System, Earthing System Invertor type & make etc. (v) Confirmation of area with capacity (vi) Any other details required for successful installation commissioning, testing and smooth and stable operation of Solar PV plant shall be deemed to be included in the quoted rate.

Note (ii) (a) The mechanical structures, electrical works and overall workmanship of the Grid solar power plant must be warrented for a minimum of 5 years (b) All Mechanical, Electrical works shall be carried out as per relevant BIS/IS/equivalent standard norms only and also in accordance with the latest edition of the Indian Electricity Act / rules formed thereunder and as amended from time to time. (c) Any other works (mechanical, electrical & Civil) connected to installation, testing & functional requirement of solar photovoltaic power plant of capacity 40 KW (AC) all as mentioned above and which is not mentioned or included in this Schedule A , but necessary shall be carried out by the contractor and quoted rate shall deemed to include for the same. (d) Contractor shall provide adequate Spares required minimum for 02 year maintenace including DC & AC items under scope of work as per OEM recommendation. (e) Installation will be taken over after peak power generation and provision of one set of maintenance schedule and training to MES staff.

Note (iii) (a) Entire plant shall be tested after successful commissioning by Rep of Accepting Officer. (b) The bidders shall read Errata to Appx 'A' to Notice of tender on serial page No.14 of tender and ensure participation of solar power firms having requisite experience and MOU in this effect shall be attached in Cover I alongwith other documents to qualify bid evaluation. The entire work shall be got executed through solar power firms as approved by GE. The adequately experienced firms as per NIT are excempted from submission of MOU.MOU will be permitted between only one eligible solar firm and one MES enlisted /un-enlisted contractor. (c) Contractor shall organize presence of an electrical consultant at site at the time of commissioning with no additional charges to MES. The consultant / site engineer shall have adequate expertise in the form of knowledge/ experience in this field. He shall be able to guide the site team on the steps/ procedure/ precautions to be adopted during commissioning. Also, he shall be able of extempore trouble-shooting in case of any technical problems encountered on SPV portions up to connection to existing LT distribution system.

All as per item No 01 (ie 1.01 to 1.22)above but capacity 25 KWp for RNS Galley.

All as per item No 01 (ie 1.01 to 1.22)above but capacity 15 KWp for PM Hall

All as per item No 01 (ie 1.01 to 1.22)above but capacity 26 KWp for HQ 33 WEU

M&L for module mounting structure (MMS) fabricated from Hot Dip galvanised structure of suitable size with specified tilt angle according to site requirement & optimum angle to achieve max benefit of solar energy & suitable to with stand 200 Kmph wind speed including necessary foundation/ coping cement work on existing roof top all as directed by Engineering- in- charge and as per approved design parameters complete. Note :- The contractor shall make good the water proofing treatment to the satisfaction of E-in-charge after installation of MMS structure

Supply and Lay UG cable in trenches/passing through pipes/fixed on walls or poles cable XLPE insulated, screened, PVC bedded, steel strip or wire armoured electric power cables (Heavy duty) 1100 Volts grade with stranded aluminium conductor of size 3.5 core 25 sqmm with suitable cable gland all as specified and as directed.

Supply and Lay UG cable in trenches/passing through pipes/fixed on walls or poles cable XLPE insulated, screened, PVC bedded, steel strip or wire armoured electric power cables (Heavy duty) 1100 Volts grade with stranded aluminium conductor of size 4 core 16 sqmm with suitable cable gland all as specified and as directed.

S&F MCCB 4 pole 415V adjustable type 100 Amp with breaking capacity 25kA with enclosure all as specified and as directed.

S&F MCCB 4 pole 415V adjustable type 63 Amp with breaking capacity 25kA with enclosure all as specified and as directed.

S&F MCCB 4 pole 415V adjustable type 40 Amp with breaking capacity 25kA with enclosure all as specified and as directed.

Material and labour for earthing complete with galvanised earth plate electrode 600x600x6 mm thick buried directly in ground (earth pit not less than 2.5 m below normal ground level) with top edge of earth plate not less than 1.5m below normal ground level, connected to galvanized iron strip 32X6 mm by means of electric arc welding of galvanised iron or steel as shown in electrical plate No 3 of SSR Part I, connected to earth test point and the equipment on the other side complete all as specified, including testing and commissioning complete all as directed. Note : (a) The unit rates quoted shall be deemed to include the cost of excavation and earth work in any type of soil, common salt & charcoal dust in alternate layers, PCC 1:3:6 as in pit, precast RCC 1:2:4 type B-1 with necessary reinforcement as in cover & frame for pit, funnel, watering pipe 20 mm bore GI pipe light grade, protection pipe 40mm bore GI pipe light grade etc. (b) The quoted rates shall also deemed to include the cost of earth test point and earth strip/GI earthing and protection pipe upto 7.5 meter beyond the earth plate electrode.

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