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| 1 | Design,supplying,erecting,installing,testingandcommissioning, consultancy, civil work including module mounting structure, and erection of entiresystem, including topographical survey of Grid connected Rooftop Solar Photo-voltaic ( PV)plant of 20 KWp at Location Base Victualing Yard (Rooftop system )under GE (NW) Kunjali Note. (i) The quoted rate for the items shall be as per scope of work givenat item No 1.00 to 19.00 respectively(ii) General layout diagram shall be got approved from accepting officer by the contractor. |
| 2 | Photo Voltaic (PV)Modules :- The PV modules must conform to the latest edition of any of the following IEC/equivalentcapacity of 540/545/535 Wp solar photo voltaic modules,BIS Standards for PV module design qualification and type approval: Mono Crystalline Silicon Terrestrial. Crystalline silicon solar cell modules conforms IEC 61215 / BIS 14286, Thin film modules IEC 61646 / Equivalent BIS, Concentrated PV modules IEC 62108 / Equivalent BIS, PV modules (for contruction & safety) must conforms IEC 61730 (Part I & II )/ Equivalent BIS., PV modules corrosive atmosphere IEC 61701 / BIS 61701, PV module in sandy environment must conform IEC 600068-2-68. |
| 3 | EachPVmodulemustuseaRFidentificationtag (RFID),whichmustcontainthe followinginformation: (i)NameofthemanufacturerofPVModule(ii)Nameofthe Manufacturer of Solar cells (iii) Month and year of the manufacture(separately for solar cells and module)(iv) Country of origin : Make in INDIA only .(v)I-V curveforthemodule (vi)PeakWattage,Im,VmandFFforthemodule (vii)Unique Serial No and Model No of the module (viii)Date and year of obtaining IEC PV module qualification certificate(ix) Name of the test lab issuing IEC certificate(x) Other relevant informationontraceabilityofmoduleasperISO9000series.Note:RFIDshallbe mandatorily placed inside the module laminate. (xi)Makes of panels provided shall confirm to MNRE specifications/standards and must be registered in the ALIMM. (XII)0.25% spare quantity of modules shall be provided by the contractor for repair/ replacemnt purpose.(xiii)Additional modules shall be provided by the contractor to meet t the specified power output, in case the requied output is not achieved during testing and commissioning, at no extra cost.(xiv)Each PV module used in any solar power project must have and RF identification tag. (xv) Any damage done to water proofing/roof structure/ Galvalume Sheet during installation shall be made good by the contractor at no extra cost. (xvi) An indicative single line diagram is attached herewith as per Appendix \"A\". However the detailed drawings shall be provided by the contractor as per the specifications of the contract for approval of the Accepting Officer.(xvii) All drawing shall be submitted with in one month, and necessory approval from the Accepting Officer shall be obtained prior tothe actual commencement of the work.(xviii)Any other item/work requied for the successfull commissioning of the project. Nothing extra shall be paid. (xix) The contractor shall inform to the CWE/GE for pre-dispatch inspection of solar modules at factory premises.The factory inspection and testing shall be carried out by the nominated rep of accepting officer.The inspection & testing at work site after installation arragement shall be made by the contractor and the cost of the same shall be deemed to be included in unit rate quoted by the contractor. |
| 4 | Authorised testing laboratories/centre: PV modules must qualify(enclosetest reports/certificate from IEC/NABL accredited laboratory) as per relevant IEC standard.Qualification certificate from IEC/NABL accredited laboratory as per relevant standard for any of the higher wattage regular module should be acompanied with the STC report/certificate. For details of Test Labs refer Ministry of New And Renewable Energy website. The report submitted should not be older than 1 year. |
| 5 | PVmodules usedinsolar powerplants/systems mustbe designedfor their output peakwattcapacity,whichshouldnotbe less than 90%at the end of10 years and 80% at the end of 25 years. PV modules shall have product warranty of 10 years after completion of work. Contractor shall obtain the warranty certificate from the manufacturer and will submit the same to the Eng-in-charge by the contractor. |
| 6 | SiliconMonoCrystalline SPVcells shall be usedinthe SolarPhotovoltaicmodule. SPVmodulesshould beessentiallyindigenouslymanufactured(orgin of County Make in INDIA)irrespectiveofany otherprovisionsinthistender. |
| 7 | Peak power rating of the module shall not be less than 535Wp. |
| 8 | The module efficiency shall be morethan 16% (CUF) at standard test condition and the cell should have minimum fill factor of 0.7 with anti reflective coating. It shall be made of high transmittivity glass & front surface shall give high encapsulation gain.Note:- Anti dust coating on PV modules shall be done at site. |
| 9 | Allmaterialsusedshallhaveaprovenhistoryofreliabilityandstableoperationin externalapplications.Itshallperformsatisfactorily inrelativehumidity upto100%with ambient temperatures between -4°C and+60°C and shall withstand wind gust upto 180km/h on the surface of the panel. Each and every SPV module shall be checked for conformity with relevant standard and no negative tolerance shall be accepted. |
| 10 | The interconnected cells shall be laminated in vacuum to withstand adverse environmental conditions |
| 11 | Themoduleframewillbemadeofcorrosionresistantmaterialshavingaluminium anodized finish. |
| 12 | The bidder shall carefully design & accommodate requisite numbers of the modules in the available area (refer topographical survey) to achieve the rated power in his bid.Note-: Shadow analysis report of the site has to be submitted along with topographical survey . The same shall be incorporated in designing in designing of solar plant in PV syst/PVsol/NRELsoftware.ThisreporthastobevettedfromMNREapproved organisation/NIT / Govt Research Institute and submitted to Eng-in-chare by the Contractor. |
| 13 | The modules must be compatible with Inverter MPPT range. |
| 14 | Themoduleshallbeprovidedwithajunctionboxwitheitherprovisionofexternal screwterminalconnectionorsealedtypeandwitharrangementforprovisionofby- passdiode.Thebox shallhavehinged,weatherprooflidwithcaptivescrewsand cable gland entry points or may be of sealed type and IP67 rated. |
| 15 | Balance of system (BOS)items/components: The BOS items/components of the SPV power plants/systems deployed under this project must conform to the latest edition of IECorequivalentBISStandards/MNREspecifications/asspecified para1.01of minimaltechnicalrequirements/standardsforSPVsystem/plantstobedeployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender. |
| 16 | Module Mountingstructure:- (a)Mildsteel structure, Hot Dip Galvanised of 80 micron thick, corrosion resistant and electrolytically compatiblewithmaterial usedinmodularframemountingStructureShallbeused confirming to IS 2062 : 1992 Galvanization shall conform to IS-2629, 4759 & 4736 as applicable.(b) The structure shall be mounted either directly on RCC roof or PCC block of suitable strength which shall be be preparedon RCC roof to withstand the load of the mounting structure. The fastners shall be of stainless steel to fix the mounting structure.(c)It should have suitable strength to withstand windspeed of 180 km/hr .Thecontractorshallsubmitthedesign,length,section,detailedlayoutetc.ofthe structureandwalkwayandwillbeapprovedandfinalisedbyGarrisonEngineer. Modulemountingstructureshall requiretobe customizewithrespecttothesite availability.Test certificate of galvanization shall be submitted by contractor.(d) The contractor shall submit structural design on Stad- Pro based on Wind loadThe design have to be vetted from NIT/MNRE approved organisation..The mounting steel structure shall be as per IS 2061-1992 |
| 17 | The Structure shall be of Fixed type and the design of mounting strucutre shall be as per IS code. |
| 18 | Minimummodule groundclearance shouldbe 300 -400mmandTilt angle of PVmodule shall not be less than 22 degrees or as per manufacturs instruction. |
| 19 | AllfastenersshallbeofStainlesssteel-SS304Nut&bolts,supportingstructures including module Mounting Structures shall have to be adequately protected against all climatic condition. |
| 20 | M&L for cement concrete (1:2:4) type B2 in foundation filling and mass concrete and coping of poles incl necessary form work using 20 mm graded stone aggregate etc |
| 21 | Grid Tied Solar String Inverter-20 KW (3Ph):-Supply,Installation,Testing&commissioning of Gridconnected string solar inverter outdoor type, minimum IP 65 rating of 20 KWAC output at 50 o C ambient temperature. Minimum european efficiency of the inverter shall be 98% load as per IEC 61683 standard for measuring efficiency. Maximum DC input voltage shall be 1000 V and inverter supplied shall have upto 10% additional DC input capacity. (Array to inverter ratio 1:1) , 3 phase AC Nominal output voltage 415V (with ±10% range). frequency 50Hz (±10% range) PF at rated output capacity:1 (with range from 0.8lag to 0.8 lead), Total ITHD :3% , Operating temperature range : -20 o C to +60 oC. All inverter should consist o associated control, protection and data logging devices and remote monitoring hardware and compatible with software used for string level monioring all as specified and as directed. Other important features / protection required in the inver are as under :- Notes : (i) Automatic morning wake up and nightly shutdown.(ii) Mains (Grid) Over-under voltag and frequency protection(iii) Galvanic isolation and fool proof protection against ISLANDING .(iv) Included authentic tracking of the solar arrays maximum power opeation voltage (MPPT). (v) Array ground fault detection. (vi) LCD and piezoelectric keypad operator interface menu driven.(vii) Automatic fault conditions reset for all parameter like voltage, frequency and / or black out (viii) Metal oxide varistor (MOV) type surge arrester on AC and DC terminals for over voltage protection from lightning-induced surges (ix) Provn for input and output isolation (x) Invertor shall be installed on GI stand made by the angle size50mm x 50 mm x 6mm.Structure burried in ground and shall be 450mm above ground level. Grid connectivity : Relevant CERC/RERC regulations and grid code as ammended and revised from time to time shall be complied. Invertor shall adjust the voltage and frequency levels to suit the grid complete all as specified and directed. |
| 22 | Supplyandfixing of MC4 Solar connector/ PV MC4 connector of followingspecifications:-(i) Rated current -30 amps(ii) Rated voltage- 1500 V DC (IEC)(iii) Ambienttemperature range- -40°C and+90°C(iv) Degree of protection/safety class- IP68/Class II(v) Contactresistance of plug connector- 0.5mΩ(vi) Contact material- Copper tin plated(vii) Cable size- 2.5sqmm to 6.0 sqmm |
| 23 | Supply, fixing , testing andcommissioning ACDB( ACDistribution Board)panel of operational voltage upto 800 VAC , insulation voltage upto 1000 VAC, Maximum operating current 200A AC, with internal bus bar made up of copper , with MCCB 100 amps 4 pole. Input Method: Double compression nickel plated cable gland, Output Method: Double compression nickel plated cable gland made up of powder coated CRCA sheet 3.15 mm thick dust , water and vermin proof arrangement (IP67) cubical type suitable for operation of three phase/ single phase , of capacityasperSolarDesignwithsuitableNo.ofinputsandoutputswithfuses, connectors,isolatorsconforming to IEC 61439-1&2standards complete all as specified and directed.. |
| 24 | Supply, fixing , testing andcommissioning of 6 string combiner box (with DC Fuses) DCDB( DCDistribution Board)panel of operational voltage upto 500 VDC , Maximum output current 125A, with internal bus bar made up of copper , with suitable capacity input and outpur breaker. Input Method: Double compression nickel plated cable gland, Output Method: Double compression nickel plated cable gland made up of powder coated CRCA sheet 3.15 mm thick dust , water and vermin proof arrangement (IP67) cubical type suitable for operation of three phase/ single phase , of capacityasperSolarDesignwithsuitableNo.ofinputsandoutputswithfuses, connectors,isolatorsconforming to IEC 61439-1&2standards complete all as specified and directed. |
| 25 | Cables and wires:-(i)fortheDCcabling,XLPE insulatedandsheathed,UV-stabilized,FRLSsingle coreflexiblecoppercablesshallbeused;Multi-corecablesshallnotbeused.The minimumDCcablesizeshallbe4.0sqmmcopperandsizeshallbeselected considering the maximum voltage drop of 2%.(ii) For the AC cabling, XLPE insulated and PVC sheathed single or, multi-core flexible copper cables of 35 sqmm 4 core unarmoured shall be used considering the maximum voltage drop of 1 %.Outdoor AC cables shall have a UV-stabilized outer sheath.(iii) The total voltage dropon the cable segments from the solar PVmodules tothe solar grid inverter shall not exceed 2.0%.(iv)Thetotalvoltagedroponthecablesegmentsfromthesolar gridinverter tothe building distribution board shall not exceed 1%.(v) All DC and AC cables from the SPV module and Inverter shall run through a Pre- Galvanized aluminium/HDG cable trays of height not less than 40 mm and width not less than 50 mm.(vi)CablesandwiresusedfortheinterconnectionofsolarPVmodulesshallbe provided with solar PV connectors (MC4) and couplers.(vii) All cable trays shall be clamped to the rooftop, walls and ceilings with clamps atintervals not exceeding 50 cm. |
| 26 | 9(a) M&L for DC cableinsulatedandPVC sheathed, unarmoured cable, UV-stabilized,FRLSsingle coreflexiblecopper of size 4.0 sqmm |
| 27 | 9(b) M&l for AC cabling, insulated and PVC sheathed single or, multi-core flexible copper cables of 16 sqmm 4 core unarmoured |
| 28 | 9(c) M&L for AC cablingXLPE insulated armoured PVC Sheathed LT (1100 Volts grade) cable with Copper conductor of size 35 SQMM 3.5 CORE on wall/roof or passing through GI pipes including all fixing arrangements . All as specified and directed. |
| 29 | Lightening protection:- There shall be the required number of suitable Early Streamer Emission(ESE)lightningarrestorsinstalled(AsperDesigntobesubmittedby sucessfull bidder) .The air terminal is Early Streamer Emission(E.S.E.) type which shallprovide protection not less than 100 meter of radius andfixed at the top of astainless steel pole with base be atleast 4 meters above the structure to be protected.The air terminal should be working on the principleofearlystreameremissionusingnon-radioactivetechnology,needingno externalpowersource.Theairterminalshouldbecapableoftrackingthelightning stroke 60 micro seconds earlier as compare to passive lightning rod. The air terminal is of stainless steel and it has qualified diameter to resist high values of lightning currents.Roofconnectionpipeshouldbecapableofwithstandinlightningstrikeshaving dimension60mm OD and thickness of 5 mm. All a specified and directed. |
| 30 | Material and labour for Earthing complete with copper earth plate electrode 600 mm x 600 mm x 3.15mm as earthing lead buried directly in ground vertically to a depth not less than 2.25 Mtr deep below ground level with top edge of the plate not less than 1.5 Mtr below normal ground level connected to and including copper strip 20x3 mm as earthing lead by means of bolts, nuts, check nuts & washers etc made of brass and connected to earthing test point all as shown in electrical plateNo. 5 of SSR Part I of 2009 & as specified or indicated and testing on completion including excavation/earth work in any type of strata PCC ( 1:3:6 ) type C1 earthing chamber, pre cast slab cover 50 mm thick in cement concrete ( 1: 2 : 4 ) type B 1 ( reinforced with welded steel wire fabric (XPM) weight not less than 4 Kg / Sqm),funnel with wire mesh, watering pipe of 20 mm bore medium grade, including copper strip 20X3 mm with GI protection pipe of 40 mm medium grade up to 7.5 meter length, etc complete All as specified and directed. |
| 31 | S&F in repair of test point made out of gun metal or phosphorous bronze of size 75x50x5mm duly mounted on epoxy insulator 02 Nos.Drilling of upper & lower portion of test point for incoming & outgoing connections with brass nut bolt to be fitted in and including terminal blockmade out of M.S sheet 2mm thick as per the sample duly painted with two coat of enamel paint over a coat of red oxide primer complete all as specified and directed. |
| 32 | Supply & fixing of Earthing wireinsulatedandPVC sheathed, unarmoured cable, UV-stabilized,FRLSsingle coreflexiblecopper of size single core copper 25 sqmm of reputed make drawn through PVC conduitcomplete all as specified and directed. |
| 33 | Meteringarrangements:-Solar meter:-A separate Energy Meter called Solar Meter shall be provided at the output of PCU/Inverter to record the energy generation from the Solar System.Solar energy meter means a unidirectional meter to be installed at the delivery point of the solar energy system to measure the solar electricity generated. This Energy Meter should be tested along with the Net Meter (Import-Export Meter).Netmeter:-(A)Suitabledualmeteringarrangementswithrecording facility shallbeprovided.Themeteringarrangementsmusthavefeaturetomeasure and record, (i)Parameters of KW,KWh,KVAR,voltage,current,PF and anyother metering required to determine efficiency and efficacy of the system.(B) LT3Phase4WireElectronicTrivectorMeterwithCTratio shouldbeasper capacity of SPV plant.(i) Standard: IS 13779:1999 / CBIP 88 (ii) Accuracy: Class 0.5(iii) Reference Voltage - 3x240 V(iv) Basic Current (Ib)- 5 A(v) Maximum continuous current (Imax) - 10 A(vi) Rated Frequency (variation) - 50Hz (±5%)(vii) Power consumption:- Voltage circuit: Less than 1.5 Wand 10 VA per Phase at referencevoltage,referencetemperatureandreferencefrequencyCurrentcircuit: Lessthan1VAperphaseatbasiccurrent,referencefrequencyandreference temperature(viii) Display type: 8 digit 7 segment backlit LCD display, not less than10 mm character height(ix) Display in the event of Power Failure: Internal battery back-up for LCD display (x)Communicationport:GalvanicallyisolatedOpticalCommunicationportfordata transfer througheither CMRI or remote device or bothis provided withRS 485for DLMS protocol(xi) Energy recording – Bidirectional |
| 34 | S & F U-PVC, 20 mm dia ,type A as per IS 13592: 2013 single socketed water pipes of suitable lengthtocoverthewholeplantareawithprovisionofnozzlesoutlet every 10min order to clean the PV modules complete all as specified and directed by Engineer- in- charge.Thecleaningsystemshallbeconnectedtothewatersourceavailableat site.The cost of supplying, installation and testing of washing and cleaning system of PVmodulesisdeemedtobeincludedinquotedrate.All as specified and directed. |
| 35 | Note:- (a) Number of inverters / PV modules and other componentsshould as per site requirementor OEMDesign. Designof structural drawings of module mounting structure alongwith design calculations shall be submited by the contractor duly vetted from MNRE approved organisation/ NIT/ Govt Research InstituteMinimal technical requirements/standardsfor SPVsystems/plants tobe deployedas perMNREaremandatorilytobecompliedwithinthedesign. (b) all the Components- Country of orgin (Make in INDIA only) |
