SETTING UP OF 100 KW SOLAR POWER PLANT AT NSRY KOCHI

Amount

Designing, supply, erection, installation, commissioning and testing of roof top solar photovoltaic power plant (ON-GRID) on existing building NSRY capacity 50KW (AC) fixed tilt type, and power evacuation at 415V 3 Phase system all as per guidelines / norms issued by MNRE & Indian metrological dept approved solar radiation data viz direct normal irradiance, global horizontal irradiance etc complete comprising with the following:-

(a) Supply, erection installation, commissioning and testing solar PV modules capable for generating 50 KWp (AC) electricity at 415V 3Phase system. These solar PV modules shall be as per approved design parameters, with mono crystalline silicon solar cells & efficiency not less than 14-18%, 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 centre. 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 warranted for a minimum period of 25 years. Solar PV modules used in system must be warranted 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 manufacture of PV module, Name of manufacture of solar cell, month & year of manufacture (for solar cell & module) country for originie ( It is mandatory 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 International Electro technical 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 centres. In addition a PV module qualification test certificate as per IEC standard, issued by EDTC, Bangalore or solar energy centre will also be valid.

(c) BIS standards :- Mono crystalline silicon 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) 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 150Kmph wind speed all as per approved design parameters complete.

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

(f) Supply, erection, installation, commission and testing required qty of junction boxes / SMBs of 50 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 positive and negative side of string complete with SMB voltage rating 1000V, copper busbar, weather proof enclosure with NEMA rating complete.

(g) S&L and testing required qty of DC cable 2 runs 1 x 6 sqmm multistrand tinned copper conductor through PVC conduit 25mm dia heavy grade ISI marked with conduit accessories, 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 connectors & joints etc

(h) Supply, erection, installation, commissioning and testing Grid tie solar power conditioning unit / inverter of capacity 50 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 monitoring, grid monitoring,AC & DC over voltage and under voltage protection, AC & DC short/ over current protection, and DC reserve polarity protection, graphic display etc all as specified and directed.

(j) Nominal voltage : 415V 10%, 3 phase, 50Hz, control : Microprocessor/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>0.9, THD,<3%. The inverter should have internal protection arrangement against any sustainable fault in feeder line and against the lightning on feeder, should have isolation transformer, the inverter generated harmonics, flicker, DC injection limits, volt range frequency range and anti-islanding measures should follow the latest guidelines/IEC 62116/BIS code.

(k) Technical requirement for BoS items of SPV plants: technical specification of power conditioners including MMPT & protection for use in grid solar power plant are as under:- Environmental testing : IEC 60068-2/Eq IS, efficiency measurement :IEC 616833/ is 61683, product safety :IEC 62109-1 & 2, Grid connectivity interface:IEC 61727 : 2004, Interconnection PV inverters: IEC 62116, Electromagnetic interface:IEC 610002,3,6, Batteries: As per relevant BIS std, Cables:IEC 60227 / IS 3043:1986, Earthing /Lightning :IEC 62561 / IS 3043:1986, Surge arrestors:IEC 60634-5-53/ relevant 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 guidelines / IS 16444, grid connectivity : as prevalent in the state/as per CA, warranty: the mechanical structures, electrical works and SPV power system, must be warranted for a minimum of 5 years.

(l) Supply, installation, commission and testing of LT 415V grid panels outdoor type for power evacuation and grid interconnection systems with the existing LT panel directed by Engineer-in-charge at site with MCCB of suitable capacity 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: Earth work & LT cable of size required for connection of inverter to grid panel shall be measured and paid separately

(m) modification of existing LT panel/Feeder pillar box by addition / alteration to existing bus bar for connection with and including MCCBs off rated capacity, sheet metal enclosure complete & connecting.

(n) Material and labour for required qty of earthing for lightning protection 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 buried directly in ground vertically (earth pit 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 or up to 7.50m by means of 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

(o) M&L for aluminium strip of size 25 x 3mm thick for roof / down conductor fixed on insulators / saddles of suitable size for SPV modules lightning protection

(p) M&L for artistic painting in black letters with yellow background for solar array structure, junction box, earth chambers, PCU's, DB's etc all as specified and as directed.

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

GENERAL NOTES:- (a) Before quoting the bid contractor or his authorized engineer / consultant shall 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 with scale building wise including quantity and make required for each items duly vetted by SICA / NISE to Accepting Officer for approval. The working drawing must include the following:- (i) Single line/schematic diagram of solar PV power plant. (ii) Designing of solar PV strings layout, SMBs/junction boxes cable route etc. (iii) Details of mounting structure tilting angle, size of sections, junction box position, Lt cable network (DC & AC) layout lightening protection system earthling system inverter type & make etc. (iv) Any other details required for successful installation commissioning testing and smooth and stable operation of solar PV plant. (v) The mechanical structures electrical works and overall workmanship of the Grid solar power plant must be warranted for a minimum of 5 years. (vi) 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 there under and as amended from time to time. (vii) Any other works (mechanical, electrical & Civil) connected to installation testing & functional requirement of solar photovoltaic power plant of capacity 100 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. (c) Contractor shall provide adequate spares required minimum for 1 year maintenance including DC & AC items under scope of work. (d) Entire plant shall be tested after successful commission by Rep of Accepting Officer. (e) Contractor shall organize presence of an electrical consultant at site at the time of commissioning without any 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. Contractor will submit credentials of the proposed consultant for approval of GE prior to availing their service.

Excavation in trenches not exceeding 1.5 m wide and not exceeding 1.5 m in depth for laying of LT UG Cable and getting out in soft / loose soil complete all as specified and directed

Returning, filling in including spreading, levelling, watering and well ramming soil, in layers not exceeding 25 cm thick all as specified and directed.

Removing excavated surplus soil to a distance not exceeding 50m and depositing where as directed at a level not exceeding 1.5 mtr above the starting point all as specified and directed.

M&L for River sand Cushioning for Cable all as specified and directed. Note:- Punned thickness of sand shall be measured and paid

Supply and lay one layer of new sub class 'B' bricks for protection of UG cable laid flat butting to each other complete all as specified and directed. Note:- While laying, the length of the brick shall be at right angle to the central axis of cable.

M&L XLPE insulated, armoured heavy duty LT electric cables with aluminium conductor, 1100 volts grade, cross sectional area 50 sqmm 3.5 Core laid in trenches/duct/floor including suitable size of cable lugs and cable gland etc and connecting complete all as specified and directed .

Supply and lay in trenches / fixed on walls / poles GI tubing medium grade with all fittings of 40mm dia complete all as specified and directed.

S&F MCCB 4 pole 415V adjustable type 100Amp with breaking capacity 16 KA with enclosure complete all as specified and directed.

M&L for earthing complete with galvanised steel earth plate electrode 60 cm x 60cm x6 mm thick, buried directly in ground (earth pit not less than 2.25 meter deep below ground level) with top edge of plate not less than 1.5 meters below normal ground level, connected to galvanised earth strip 32 x 6 mm upto length 7.5 mtr by means of bolts, nuts and washers of galvanised steel all as shown in electrical plate No. 3 connected to earthing test point complete all as specified and indicated including testing on completion. Note :- The rate is deemed to be inclusive of the cost of complete earth work in any type of soil. PCC 1:3:6 type C-1 for chamber,RCC 1:2:4 type B1 for cover slab 50 mm thick, reinforcement 8 mm CTD bars @ 100 mm c/c both way, necessary form work, handle, charcoal dust 20mm dia GI med grade for watering and 20mm dia GI med grade earth lead protection pipes with funnel and wire mesh complete all as specified and directed.

Cutting existing Concrete/metal/bituminous road/PCC hard standing or tie walk way any type nexc 45cm width and nexc 30cm in depth in hard strata and making good the distributed surfaces to match with the existing using PCC 1:4:8: type D2 using 40mm graded stone aggregate 150mm thick over rammed earth. Note: The quoted rate shall inclusive of returning filling in, watering, well ramming in layers, disposal of surplus material to distance n.exc 50m, complete all as specified and as directed.

POWER ONE MICRO SYSTEMS PVT LTD

M/s.Rejoy Constructions