Tender For Provision Of Roof Top Solar Plants 125 Kw At Certain Buildings At Mil Station Gaya; 1 Design, procure, erection, installation, testing and commissioning including connecting to local utility grid; Roof top On-grid Solar Photovoltaic Plant of 50kWp capacity including Solar Photovoltaic Modules, DC Cabling, Module Mounting Structures, Array Combining Boxes, Lightning Protection of SPV modules and other accessories, Central Inverter as Power Conditioning Unit, Weather Station and Data Monitoring System all as per detailed specifications given in Particular Specification, latest MNRE/IREDA guidelines and directions, meeting the Domestic Content Requirement (DCR), consisting of all requisite accessories (BOS-Balance of System) and incuding the following main componenets:-Make In India: Solar Panel & Solar Cell: Monocrystalline PV Modules & PV Cells : TATA / BHEL / HMV / Waaree Energies Ltd / Vikram / Adani / Emmvee / Premier Energies Solar Invertor/ Power Conditioning Unit (PCU) : DELTA / SUNGROW / GROWATT / POLYCAB / HAVELLS / FIMER.Note: 50 KWp (i.e. 50 KW AC out put) (02 Nos) solar roof top plant will be installed at Demo Coy and DSC Bldg including annualmaintenance cost 2 years till completion of defect liability period. The completion of work (Phase-I ) after installation ,testing and and commissioning of plant.During defect liability period, contractor will carry out following activity:-The scope include:(i). Cleaning once in a month. (ii). CompetentpersonsthroughAuthorizedServicecentrewillalwaysbe deputed to respond the calls who are aware of safety and statutory norms.(iii). For monthlycleaningand preventivemaintenanceactivity - team of one expert Engineer &two semi-skilled technicians will be deputed and they will submit monthly report. (iv).sensors & Data Logger once in 2 month:- (a) Sensor healthiness.(b). Optical Fibre Communication loop healthiness(c). Data logging accuracy(d). Frequency- Monthly (v). Reliability Centred Maintenance once in a month:- (a).Preventivemaintenance ofthecompleteplant-Stringhealthiness, presenceof burnmarksorlocalhotspots,Inverterchecking, checkingof healthiness of power distribution panels etc. (b). Integrity improvement (proper identification of strings and all cables)(c). Frequency-Monthlyvi. Breakdown Calls:- (a).Toberespondedwithintwohrsandresolutionwithin24to48hrsfor minor issues like string problem etc. on a working day.(b). Call log notification time will start from the time a mail has been triggered by the Solar Log system or Customer reports any abnormality(c). Visits of any OEM Engineer will be organized vendor/contractor wherever specialized input is required for addressing the breakdowns at site without any extra cost after completion of 2 years of Defect Liability Period,contractor will provide additional maintenance of the Solar Plant for further 3 years as per scope of maintenance referred above (i.e. total maintenance period 2+3 years).Note:- (Inverter capacity 25/ 50KW as applicable with 05 years warranty) 2 Sl Item 1 Contd….(A) Mono Crystaline Silicon Solar Photovolaic Modules of500 Wp or more (module power and number of modules to be selected according to available roof top area & adequate walkway), having cell efficiency more than18% under standard conditions, form fill factor more than 0.76, plant performance ratio > 75%, made of high transmitivity glass front surface and it shall give high encapsulation gain (transmittance above 90% and bending less than 0.3%). The modules shall have the folling features :-(a)The electrical parameters of SPV modules under standard test condition of irradiance 1000 W/sqm, AM 1.5 Spectrum and temp 25 degree Celsius shall be as under:-(i) Max Peak Power Pmax : 500 Wp or more(ii)Voltage at Max Power : > 39 V(iii) Current at Pmax : > 9 A(iv) Short Circuit Current : > 10 A(v)Open Circuit Voltage : > 47 V(vi) Module Efficiency : > 19 %(b) Rated output of the modules shall have positive tolerance of 3-5% and no negative tolerance is allowed.(c) It shall perform satisfactorily in RH 85% with temperature up to +85 degree C and should withstand wind of 200 kmph on the surface of panel.(d) PV modules shall be warrented for their output peak watt capacity, and it shall not fall of its initial value below 90% in first 10 year end and 80% after the end of 25 years. 3 Sl Item 1 Contd….(e) Each module shall have RFID tag encapsulated with solar cell bearing following details :- (i)Name of Manufacturer of SPV Module(ii) Name of Manufacturer of Solar Cell(iii)Month and year of Manufacturing (seperately for cell and module)(iv) Country of Origin (both cell and module)(v)Peak wattage, Im, Vm and fill factor of the module(vi) Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate.(vii)Unique serial no and model no of module(viii)IV curve of module(f)The temperature coefficient of power for the module shall not be more than 0.50% per degree Celcius.(g) Every module must have bypass diode of suitable capacity.(h) PV module must confirm to latest edition of IEC 61215/ IS 14286. In addition the modules must confirm to IEC 61730 Part I and II for construction and testing & safety qualifications and confirming to IEC 62804 PID.(j) It shall also be in confirmity to latest minimum technical specification issued by MNRE & IREDA from time to time. Modulesshould be of MNRE & IREDA approved companies and as per latest IEC/IS standards.(k)Provision of earthingand earth strip / cable etc for earth of solar PV module/ array etc as per latest IS/MNRE & IREDA norms to be provided and cost of the same is deemed to be included in the item and no extra amount will be paid to the contractor on this account. (The earthing shall be of copper earth plate and having specification as per SSR Item Sr 19474). 4 Sl Item 1 Contd….(l)RFID reader is to be provided by contractor(m)Both PV cells and SPV modules shall be make in India. 5 (B)Junction Boxes : Supply and fix junction boxes of suitable Nos (as per design)/ OEM recommendations inputs and suitably rated output 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 Plast with IP 65 protection in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and maintenance free earthing as per relecant standard. The junction box shall have suitable arrangement of the following :-(a)The strings are required to be connected to the copper bus bar through individual fuses.(b) Provide arrangement for disconnection (DC dis-connection switch) for each SJB/ SCB.(c)Provide a test point for each sub group for quick fault location and to provide group array isolation.(d)Each array box shall be of relevant IEC standard.(e) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V with suitable arrangement of its connection. Reverse blocking and bypass diodes shall work for extreme temperaturesand shall have efficiency of 99.98% confirmed by appropriate IEC standard.Make : As per OEM 6 Sl Item 1 Contd…(C)DC Cables : Suitable size of XLPE insulated tinned Copper cable (min 6 sqmm of size) of Solar grade, 1100 Volts and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :-(a) All cables and connectors for use of installation shall be of Solar grade which can withstand harsh enviromnetal conditions including high temperature, UV radiations, rain, dirt, burial and attack by moss and microbes for 25 years and voltage as per latest IEC/ IS.(b) All the cables / wires shall be provided with UV resistant printed ferrules for DC side.(c) The size of the cable shall be such that avearage voltage drop at full power from PV module to inverter shall be less than 1.5%.(d)Cable batch No, drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice.(e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable size. (f) The cost of interconnecting DC Copper cable, MS cable trays, and earth work for trenches/ MS cable trays suitable to accommodate Solar grade cables from SPV module upto inverters are included in the item. 7 Sl Item 1 Contd….(D)Module Mounting Structure (MMS) : Design, procure, fixing, support structure made of hot dipped galvanised with min 85 micron thickness including necessary PCC foundation and associated work (cutting, grouting, PCC filling, dispoing waste material, etc., complete) and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 200 km per hour. The mounting structure is to be installed at RCC Roofs and the array structure has to be so designed that maximum load is directly on roof beams and columns. 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 fastners shall be of Stainless Steel of grade SS316. Notes : (a) Two numbers of anti theft fastners of Stainless Steel on two diagonally opposite corners of each module shall be provided. (b) The modue mounting structure shall be of fixed to provide maximum generation. (c) MMS design shall be supported with Stadpro Report vetted by Third Party (Gov Institute) and submitted for the approval of the Acepting Officer. (d) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines. 8 Sl Item 1 Contd….(E) Lightning Protection for PV Array : Design, procure and fix lighting arrestor system cofirming to IS/ IEC-62305 (Part 1 - 4) on the roofs. The air terminalshall be fixed at the top of GI elevation pole with base so as to be at least two meter above the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required. Notes : (a) The cost of all equipments, Copper strip upto earth test point, etc., shall be deemed to be included in this item. (b)The cost ofearthing for lightning protection (F) Power Conditioning Unit : Procure, fixing, testing and commissioning of 50 KW AC (nominal power), Solar power inverter suitable to convert DC power of Solar PV module/ array to AC for further feeding to grid confirming to IEC : 61683 for efficiency, IEC : 62109-1 or equivalent for safety and IEC : 62093 for reliability. The input DC & output AC technical specification of Inverter are as under :-.Input (DC)(a)Max Absolute DC input Voltage : 1000 Vb)Start-up DC input voltage : 360 - 500 V (Default 420V)c)Operating input DC voltage range : 300 - 950 V(d)No of independent MPPT : One(e)MPPT input DC voltage range at Pacr :480 - 800 V DC(f) Max input DC Current : 110 A(g)Maximum input short circuit current : 160 A(h)No of Protected DC inputs : 8-20 9 Sl Item 1 Contd….(G)Output AC(a)AC grid connection type :3Phase (4W + PE)(b)Nominal Power at unity PF : 50 kW(c)Max AC output power : 50 KW(d)Max AC output Apperant power : 50 KVA(e)Max AC output Current : 70 A(f) Max AC fault current : 1.25 to 2.5 times of rated current(g)Nominal Output Voltage : 415 V(h)Output voltage range : 415 V ± 20%(j) Output Frequency : 50 Hz± 3Hz(k)Power factor : > 0.995(l) Harmonic Distortion Current : < 3%(m) Efficiency : > 98%(n)Standby operation consumption : < 1.5 W 10 (p)Operating temperature upto 85 degree centigrade(q)The inverter shall have minimum IP-67 protection, ground fault monitoring, grid monitoring, protection for anti-islanding, DC reverse polarity, AC and DC short circuit current and over current, AC and DC over voltage and over temperature. (r) The inverter shall adjust voltage and frequency levels to suit the grid.(s)The inverter shall be self commulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min.(t) Maximum Power Point Tracker (MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximise the energy drawn from the PV array(u)Monolithic design of inverter is not permitted.(v)The inverter shall have suitble nos of protected inputs (asper design) and outgoing shall be protected by ACB/MCCB. 11 Sl Item 1 Contd….(x)The inverter should have MODBUS, PROFIBUS, ETHERNET common ports.(y) 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 componant failure or from parameters beyond the inverters safe operating 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.(z)The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741) equivant IS and lightening.(aa) 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. 12 Sl Item 1 Contd…. (H) Balance of System (BOS) Items/ Components :- The BOS items/components of the SPV power plants/ systems deployed under this project shall conform to the latest edition with certificate of IEC or equivalent BIS Standards/ MNRE specifications/ as specified in Para 1.01 of Minimal Technical Requirements/ Standards for SPV System/ Plants to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender.Notes : (a)The contractor must visit the site before quoting the rates for this item to asses the site condition so as to decide up on location and layout of SPV, placement of inverter, length of DC cables, lightning arresters, etc., complete.(b) The contractor shall submit complete scheme including electrical diagram of the work, schematic diagram, SPV module layout, placement of LAs, Civil work,etc., complete as per IREDA latest guidelines as applicable, Relevant IEC/IS norms to the GE for approval with in one month of date of commencement of the work. 13 Sl Item 1 Contd…. (c) The rate quoted is deemed to be inclusive of the all protection system including surge, lightning arresters and necessary earthing all as specified and directedd) Quoted rates inclusive of necessary faciility for monitoring of solar power generation through app along with necessary sim card and recharge for 2 years(e)Training : On successful commissioning of the plant, training shall be provided on plant operation and maintenance to a team (Engineers and technicians/ operators) as nominated by department for minimum one month. 14 (J) Operation and Maintenance for preventive maintenanceof 50 kwp x 2 plants (Demo ii coy & 5 DSC pln) Roof top solar plant for a period Year of 3 years after 2 year Defect liability periodfrom project completion date:The scope include:i. Cleaning once in a month. (ii). CompetentpersonsthroughAuthorizedServicecentrewillalwaysbe deputed to respond the calls who are aware of safety and statutory norms.(iii). For monthlycleaningand preventivemaintenanceactivity (one expert engineer and two semi-skilled technicians will be deputed and they will submit monthly report.(iv). sensors & Data Logger once in 2 month a.Sensor healthinessb. Optical Fibre Communication loop healthinessc. Data logging accuracyd. Frequency- Monthlyv. Reliability Centred Maintenance once in a montha.Preventivemaintenance ofthecompleteplant-Stringhealthiness, presenceof burnmarksorlocalhotspots,Inverterchecking, checkingof healthiness of power distribution panels etc.b. Integrity improvement (proper identification of strings and all cables)c. Frequency-Monthlyvi. Breakdown Callsa.Toberespondedwithintwohrsandresolutionwithin24to48hrsfor minor issues like string problem etc. on a working day.b. Call log notification time will start from the time a mail has been triggered by the Solar Log system or Customer reports any abnormality c. Visits of any OEM Engineer will be organized vendor/contractor wherever specialized input is required for addressing the breakdowns at site (without any extra cost).vii. Rate to be included for( 02+03) years Operation andMaintenance.viii.Retain 5% of amount quoted against this item till Total 02+03=05 yearsafter completion of date .However this amount could be released after submission of FDR/BGB in favour of concerned GE.Note:- For items : Solar cell and Solar Panel shall be Make In India.- The output specified will be AC output of Solar Power Plant.-The system/ RMU/ Busbar will be compatible with infrastructure of State Electricity Board.-MNRE/NSRE approved vendor will vet the design, supervise execution and will commission Solar Plant Work and will also certify the design output (agreement between authorised vendor and contractor to be submitted).-Necessary compatibility certificate of healthiness of Solar Power Plant infrastructure with State Electricity Board infrastracture shall be submitted by representative of State Electricity Board through the contractors.- During defect liability period one expert engineer and two semi skilled techicians will also monthly visit to provide service and shall submit monthly report to Engineer-in-charge.- The Contractor isrequiredto quotedthierRatefor Operation and Maintenance of Total 02+03=05 years andNo extraamount shall be paid on this acount. 15 Design, procure, erection, installation, testing and commissioning including connecting to local utility grid; Roof top on car parking structure, On-grid Solar Photovoltaic Plant of 25 kWp capacity including Solar Photovoltaic Modules, DC Cabling, Module Mounting Structure, Array Combining Boxes, Lightning Protection of SPV modules and other accessories, Central Inverter as Power Conditioning Unit, Weather Station and Data Monitoring System all as per detailed specifications given in Particular Specification, latest MNRE/IREDA guidelines and directions, meeting the Domestic Content Requirement (DCR), consisting of all requisite accessories (BOS-Balance of System) and incuding the following main componenets:-Make : (MAKE IN INDIA)Monocrystalline PV Modules & PV Cells : TATA / BHEL / HMV / Waaree Energies Ltd / Vikram / Adani / Emmvee / Premier EnergiesSolar Invertor/ Power Conditioning Unit (PCU) : DELTA / SUNGROW / GROWATT / POLYCAB / HAVELLS / FIMERNote:including annualmaintenance cost 2 years till completion of defect liability period. The completion ofmain work after installation ,testing and and commissioning of plant.(25KW AC O/P)Note:- (Inverter capacity 25/ 50KW as applicable with 05 years warranty) 16 Sl Item 1 Contd….(A) Mono Crystaline Silicon Solar Photovolaic Modules of500 Wp or more (module power and number of modules to be selected according to available roof top area & adequate walkway), having cell efficiency more than18% under standard conditions, form fill factor more than 0.76, plant performance ratio > 75%, made of high transmitivity glass front surface and it shall give high encapsulation gain (transmittance above 90% and bending less than 0.3%). The modules shall have the folling features :-(a)The electrical parameters of SPV modules under standard test condition of irradiance 1000 W/sqm, AM 1.5 Spectrum and temp 25 degree Celsius shall be as under:-(i) Max Peak Power Pmax : 500 Wp or more(ii)Voltage at Max Power : > 39 V(iii) Current at Pmax : > 9 A(iv) Short Circuit Current : > 10 A(v)Open Circuit Voltage : > 47 V(vi) Module Efficiency : > 19 %(b) Rated output of the modules shall have positive tolerance of 3-5% and no negative tolerance is allowed.(c) It shall perform satisfactorily in RH 85% with temperature up to +85 degree C and should withstand wind of 200 kmph on the surface of panel.(d) PV modules shall be warrented for their output peak watt capacity, and it shall not fall of its initial value below 90% in first 10 year end and 80% after the end of 25 years. 17 Sl Item 2 Contd….(e) Each module shall have RFID tag encapsulated with solar cell bearing following details :- (i)Name of Manufacturer of SPV Module(ii) Name of Manufacturer of Solar Cell(iii)Month and year of Manufacturing (seperately for cell and module)(iv) Country of Origin (both cell and module)(v)Peak wattage, Im, Vm and fill factor of the module(vi) Date of year of obtaining IEC PV module qualification certificate including the test lab issuing IEC certificate.(vii)Unique serial no and model no of module(viii)IV curve of module(f)The temperature coefficient of power for the module shall not be more than 0.50% per degree Celcius.(g) Every module must have bypass diode of suitable capacity.(h) PV module must confirm to latest edition of IEC 61215/ IS 14286. In addition the modules must confirm to IEC 61730 Part I and II for construction and testing & safety qualifications and confirming to IEC 62804 PID.(j) It shall also be in confirmity to latest minimum technical specification issued by MNRE & IREDA from time to time. Modulesshould be of MNRE & IREDA approved companies and as per latest IEC/IS standards.(k)Provision of earthingand earth strip / cable etc for earth of solar PV module/ array etc as per latest IS/MNRE & IREDA norms to be provided and cost of the same is deemed to be included in the item and no extra amount will be paid to the contractor on this account. (The earthing shall be of copper earth plate and having specification as per SSR Item Sr 19474). 18 Sl Item 2 Contd….(l)RFID reader is to be provided by contractor(m)Both PV cells and SPV modules shall be make in India.(n) The minimum Net Annual Generation shall be 1,460 units per Kilo Watts. 19 (B)Junction Boxes : Supply and fix jucntion boxes of suitable Nos (as per design)/ OEM recommendations inputs and suitably rated output 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 Plast with IP 65 protection in compliance with IEC 62208 and shall be UV resistant, fire retardant. It shall have surge protection and maintenance free earthing as per relecant standard. The junction box shall have suitable arrangement of the following :-(a)The strings are required to be connected to the copper bus bar through individual fuses.(b) Provide arrangement for disconnection (DC dis-connection switch) for each SJB/ SCB.(c)Provide a test point for each sub group for quick fault location and to provide group array isolation.(d)Each array box shall be of relevant IEC standard.(e) Each array junction box shall have suitable bypass & reverse blocking diodes for maximum DC blocking voltage of 1000V with suitable arrangement of its connection. Reverse blocking and bypass diodes shall work for extreme temperaturesand shall have efficiency of 99.98% confirmed by appropriate IEC standard.Make : As per OEM 20 Sl Item 1 Contd…(C)DC Cables : Suitable size of XLPE insulated tinned Copper cable (min 6 sqmm of size) of Solar grade, 1100 Volts and UV resistant for outdoor installations confirming to IEC : 60227/15694 & 60502/ IS : 1554 (Pt I&II) and shall be as under :-(a) All cables and connectors for use of installation shall be of Solar grade which can withstand harsh enviromnetal conditions including high temperature, UV radiations, rain, dirt, burial and attack by moss and microbes for 25 years and voltage as per latest IEC/ IS.(b) All the cables / wires shall be provided with UV resistant printed ferrules for DC side.(c) The size of the cable shall be such that avearage voltage drop at full power from PV module to inverter shall be less than 1.5%.(d)Cable batch No, drum No, IS code and size and make shall be metioned on every one meter or as per OEM practice.(e) The wiring of the module interconnection shall be in UPVC/HDPE pipe of suitable size. (f) The cost of interconnecting DC Copper cable, MS cable trays, and earth work for trenches/ MS cable trays suitable to accommodate Solar grade cables from SPV module upto inverters are included in the item. 21 Sl Item 1 Contd….(D)Module Mounting Structure (MMS) : Design, procure, fixing, support structure made of hot dipped galvanised with min 85 micron thickness including necessary welding and associated work (cutting, grouting, PCC filling, dispoing waste material, etc., complete) and fixing mounting arrangement suitable for SPV modules so as it can withstand wind speed of 200 km per hour. The mounting structure is to be installed at MS car parking structure and the array structure has to be so designed that maximum load is directly on main supporting structure of car parking coumns. 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 fastners shall be of Stainless Steel of grade SS316. Notes : (a) Two numbers of anti theft fastners of Stainless Steel on two diagonally opposite corners of each module shall be provided. (b) The modue mounting structure shall be of fixed to provide maximum generation. (c) MMS design shall be supported with Stadpro Report vetted by Third Party (Gov Institute) and submitted for the approval of the Acepting Officer. (d) The height of Roof top MMS shall be as per latest MNRE & IREDA guidelines. 22 Sl Item 2 Contd….(E) Lightning Protection for PV Array : Design, procure and fix lighting arrestor system cofirming to IS/ IEC-62305 (Part 1 - 4) on the car parking roofs. The air terminalshall be fixed at the top of GI elevation pole with base so as to be at least two meter above the structure to be protected. Its height above roof level shall be depend upon the level of protection and protection radii required. Notes : (a) The cost of all equipments, Copper strip upto earth test point, etc., shall be deemed to be included in this item. (b)The cost of sufficient earthing for lightning protection is also included in this item and no extra payement will be made to the contractor on this account.(F) Power Conditioning Unit : Procure, fixing, testing and commissioning of 25 KW AC (nominal power), Solar power inverter suitable to convert DC power of Solar PV module/ array to AC for further feeding to grid confirming to IEC : 61683 for efficiency, IEC : 62109-1 or equivalent for safety and IEC : 62093 for reliability. The input DC & output AC technical specification of Inverter are as under :-.Input (DC)(a)Max Absolute DC input Voltage : 1000 Vb)Start-up DC input voltage : 360 - 500 V (Default 420V)c)Operating input DC voltage range : 300 - 950 V(d)No of independent MPPT : One(e)MPPT input DC voltage range at Pacr :480 - 800 V DC(f) Max input DC Current : 110 A(g)Maximum input short circuit current : 160 A(h)No of Protected DC inputs : 8-20 23 Sl Item 2 Contd….(G) Output AC(a)AC grid connection type :3Phase (4W + PE)(b)Nominal Power at unity PF : 25 kW(c)Max AC output power : 25 KW(d)Max AC output Apperant power : 25 KVA(e)Max AC output Current : 44 A(f) Max AC fault current : 1.25 to 2.5 times of rated current(g)Nominal Output Voltage : 415 V(h)Output voltage range : 415 V ± 20%(j) Output Frequency : 50 Hz± 3Hz(k)Power factor : > 0.995(l) Harmonic Distortion Current : < 3%(m) Efficiency : > 98%(n)Standby operation consumption : < 1.5 W 24 (p)Operating temperature upto 85 degree centigrade(q)The inverter shall have minimum IP-67 protection, ground fault monitoring, grid monitoring, protection for anti-islanding, DC reverse polarity, AC and DC short circuit current and over current, AC and DC over voltage and over temperature. (r) The inverter shall adjust voltage and frequency levels to suit the grid.(s)The inverter shall be self commulated with Pulse Width Modulation (PWM) technology and shall be capable of synchronise maximum with in one min.(t) Maximum Power Point Tracker (MPPT) confirming to IEC 62093 shall be integrated in the inverter to maximise the energy drawn from the PV array(u)Monolithic design of inverter is not permitted.(v)The inverter shall have suitble nos of protected inputs (asper design) and outgoing shall be protected by ACB/MCCB. 25 Sl Item 2 Contd….(x)The inverter should have MODBUS, PROFIBUS, ETHERNET common ports.(y) 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 componant failure or from parameters beyond the inverters safe operating 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.(z)The inverter should have provisions of Galvanic isolation, anti-islanding protection (IEEE 1547/UL 1741) equivant IS and lightening.(aa) 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. 26 Sl Item 2 Contd…. (H) Balance of System (BOS) Items/ Components :- The BOS items/components of the SPV power plants/ systems deployed under this project shall conform to the latest edition with certificate of IEC or equivalent BIS Standards/ MNRE specifications/ as specified in Para 1.01 of Minimal Technical Requirements/ Standards for SPV System/ Plants to be deployed during this financial year under the programmes of MNRE available on MNRE website as on last date of quoting of tender.Notes : (a)The contractor must visit the site before quoting the rates for this item to asses the site condition so as to decide up on location and layout of SPV, placement of inverter, length of DC cables, lightning arresters, etc., complete.(b) The contractor shall submit complete scheme including electrical diagram of the work, schematic diagram, SPV module layout, placement of LAs, Civil work,etc., complete as per IREDA latest guidelines as applicable, Relevant IEC/IS norms to the GE for approval with in one month of date of commencement of the work. 27 Sl Item 2 Contd…. (c) The rate quoted is deemed to be inclusive of the all protection system including surge, lightning arresters and necessary earthing all as specified and directedd) Quoted rates inclusive of necessary faciility for monitoring of solar power generation through app along with necessary sim card and recharge for 2 years(e)Training : On successful commissioning of the plant, training shall be provided on plant operation and maintenance to a team (Engineers and technicians/ operators) as nominated by department for minimum one month. 28 (J) Operation and Maintenance for preventive maintenanceof 25 kwp plants (Demo ii coy & 5 DSC pln) Roof top solar plant for a period Year of 3 years after 2 year Defect liability periodfrom project completion date:The scope include:i. Cleaning once in a month. (ii). CompetentpersonsthroughAuthorizedServicecentrewillalwaysbe deputed to respond the calls who are aware of safety and statutory norms.(iii). For monthlycleaningand preventivemaintenanceactivity (one expert engineer and two semi-skilled technicians will be deputed and they will submit monthly report.(iv). sensors & Data Logger once in 2 month a.Sensor healthinessb. Optical Fibre Communication loop healthinessc. Data logging accuracyd. Frequency- Monthlyv. Reliability Centred Maintenance once in a montha.Preventivemaintenance ofthecompleteplant-Stringhealthiness, presenceof burnmarksorlocalhotspots,Inverterchecking, checkingof healthiness of power distribution panels etc.b. Integrity improvement (proper identification of strings and all cables)c. Frequency-Monthlyvi. Breakdown Callsa.Toberespondedwithintwohrsandresolutionwithin24to48hrsfor minor issues like string problem etc. on a working day.b. Call log notification time will start from the time a mail has been triggered by the Solar Log system or Customer reports any abnormality c. Visits of any OEM Engineer will be organized vendor/contractor wherever specialized input is required for addressing the breakdowns at site (without any extra cost).vii. Rate to be included for( 02+03) years Operation andMaintenance.viii.Retain 5% of amount quoted against this item till Total 02+03=05 yearsafter completion of date .However this amount could be released after submission of FDR/BGB in favour of concerned GE.Note:- For items : Solar cell and Solar Panel shall be Make In India.- The output specified will be AC output of Solar Power Plant.-The system/ RMU/ Busbar will be compatible with infrastructure of State Electricity Board.-MNRE/NSRE approved vendor will vet the design, supervise execution and will commission Solar Plant Work and will also certify the design output (agreement between authorised vendor and contractor to be submitted).-Necessary compatibility certificate of healthiness of Solar Power Plant infrastructure with State Electricity Board infrastracture shall be submitted by representative of State Electricity Board through the contractors.- During defect liability period one expert engineer and two semi skilled techicians will also monthly visit to provide service and shall submit monthly report to Engineer-in-charge.- The Contractor isrequiredto quotedthierRatefor Operation and Maintenance of Total 02+03=05 years andNo extraamount shall be paid on this acount. 29 Supply and lay 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 size95 Sqmm x 3.5 Core. 30 Supply and lay 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 size70 Sqmm x 3.5 Core. 31 M & L for earthing complete with galvanized steel earth plate electrode 60 cm x 60 cm x 6 mm thick buried directly in ground vertically (earth pit not less than 2.25m deep below ground level) with top edge of the plate not less than 1.50 mtr deep below normal ground level, connecting to GI earth wire 4mm dia by means of bolts, nuts, check nuts, and washers of galvanized iron or steel including 15 mm dia. medium grade protection pipe for earth lead complete with charcoal and common salt including watering arrangement with galvanized iron pipe light grade 20 mm dia, PCC Chamber, CI frame and cover, MS funnel with wire mesh all as shown in electrical plate no 3 of SSR part I including excavation and earthwork in any type ofsoil/strata and testing on completion. Note:- GI earth wire 4 mm dia and 15 mm dia protection pipe upto 7.5 mtr from earth plate is deemed to be included in rate quoted. 32 Supply and fix microprocessor based three phase electronic temper proof solar net meter CT operated, energy meter for net metering LT supply and grid solar with communication port, accuracy class 0.5, 3 phase, 240 Volts 100/5 A confirming to IS:13779. 33 Supply, fixing & laying GI tubing medium grade with one socket both end threaded in any length including cutting threading connection in new or old position and all type of GI new fittingsfor laid in trenches/ wall/ceiling/ floor/ all as specified and directed of25 mm bore GI pipe size 34 Supply, fixing & laying GI tubing medium grade with one socket both end threaded in any length including cutting threading connection in new or old position and all type of GI new fittingsfor laid in trenches/ wall/ceiling/ floor/ all as specified and directed of 20 mm bore GI pipe size 35 S & F Gun metal globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixedingfor 20mm bore size 36 S & F Gun metal globe or gate valves, with iron wheel head, screwed both ends for iron pipe and fixedingfor 25 mm bore size 37 M&L for Rotational polyethylene water storage tank of capcacity 1000 Ltrs (cylindrical vertical top) hoisted and fixed on round base of PCC1:2:4 in position all as specified 38 Supply installation of ball brass valve high pressure with polyethen float and planet complete screwed for for GI pipe 20 MM . 39 Supply install testing and commissioning offix pressure pump up to 1 H.P 40 Supply and fix installation testingPVC hose pipe type-1, 25 mm dia, 30 mtr long for cleaning of panels with spray Jet . 41 M&L for tapping/ cutting from GI/DI pipe any diameter including suitable size tee/fitting for 25 mm dia GI pipe complete all as specified. 42 M & L for sub main wiring with approved colour coding as per IS with two single core PVC insulated FRLS cable with stranded copper conductor of size 6 Sq mm nominal area and drawing into suitable size of PVC non metallic rigid heavy duty PVC conduit of white/ ivory colour and its accessaries ISI marked heavy duty of suitable size including concealed in wall etcone run of PVC insulated with 6.0 Sqmm (nominal area) stranded copper conductor FRLS cable as earth wire complete all as specified and as directed. Note:- Two runs of 6 sqmm cable,one run of 6 sqmm cable and one run of PVC conduit will be measured as one unit. 43 S & F sheet metal enclosure MCB DB SPN 2 way with 200 Amps rated bus bar 240 volts double door with magnitic locking system including necessary provision for inserting the DBs in wall by cutting the brick/stone masonary etc and making good of distrubed surface to match with existing colour of wall complete all as specified and as directed. 44 S & F for MCB Single pole and neutral rated capacity 32 Amps, 240 Volts breaking capacity 10 KA, C curve complete all as specified and as directed. 45 M&L for mild steel framed work such as grills,gratingsetc with endsof bars shoulderedand or riveted,or forged into spikes,framed guard bars,barred iron doors ,ladders,walkwaysand similarworks conforming to fe290,gde E-165 ( iron ladder for 3 buildings) 46 Excavation in trenches n. exc 1.5 m wide and n.exc 1.5 m in depth and getting out soft /loose soil complete all as specified and as directed for laying of under ground cable/pipe etc. complete all as specified and as directed 47 Returning, filling in, including spreading, leveling, watering and well ramming in layers n. exc 25 cm thick in soft/loose soil,complete,all as specified and directed. 48 Removing surplus excavated material to a distance not exc 50 meter and depositing where directed at level not exc 1.5m above the starting point,complete,all as specified and directed. 49 Material and labour for providing sand cushioning with dry fine sand including filling, spreading, levelling in layers in cable trench with approved quality of sand for protection of under ground cable complete all as specified and directed. 50 Supplying & laying burnt clay bricks, sub class B, designation 75,old size laid in trenches over cable protection complete all as specified and directed. 51 S&F steel work in tubular trusses including special shaped washer etc complete using ERW or induction butt welded tubes confirming to I.S. 1161-1998
