82663/E8 PROVN OF ROOF TOP SOLAR POWER GENERATION SYSTEM IN CERTAIN BUILDINGS AT HQ SAC (U) AREA UNDER GE AF TRIVANDRUM

M&L for survey of site and design , supply , installation and commissioning of ON Grid Roof top Solar plant of capacity 110 KWp (AC) including civil/ electrical infrastructure size as designer recommendation with housing inverter, electrical/ electronic equipment associated with solar plant as per latest IS duly vetted from Govt. approved vetting authority, Supply , installation testing and commissioning of Solar ON Grid roof top solar plant as per approved design in the roof top of Auditorium Bldg and Unit armory building at HQ SAC area, Trivandrum, comprising of following as per latest IS specifications as follows:-

i) Solar Panels ( PV Modules) 575 Wp Topcon Halfcut Monoperc Bifacial Solar Panel- MNRE certified - 192 Nos ii) Solar ON Grid inverters 20 KW , 3 Phase - 06 Nos iii) Mounting structures for SPV Panels including PCC Works iv) Array junction box IP 66 & 66 DCDB with inbuilt Fuse / MCBs and SPDS - 6 Nos v) AC Combiner boxes (ACDB) along with MCBS , SPD devices etc - 6 Nos vi) Electrical Material , ISO certified UV Protected DC Cables and accessories of suitable sizes as per standard along with suitable UPVC conduits for laying of DC cables vii) A C Cables of suitable sizes including UPVC conduits for connections from Inverter to AC combiner boxes viii) Copper bonded chemical earthing of required quantity along with suitable sizes of earth continuity strips and Earth chamber with test points for Solar mounting structures, DCDBs, AC DBs, Inverters, etc ix) Lightning arresters of required quantity along with copper lightning conductors and copper earth continuity conductors laying on roof top with epoxy type insulated supports incl test points terminals x) Out door type LT Panel board of suitable size incl suitable sizes bus bars along with switch gears such as Incoming / out going MCCBs of suitable capacities incl Metering equipments and CTS and connections to existing Solar metering Panels

GENERAL NOTES :- Detailed Site plan, layout and schematic diagram should be submitted by contractor for approval of accepting officer along with OEM recommendation. All misc items /works which are not covered under schedule but are required for satisfactory completion job is deemed to be included in the unit rate. The items of work mentioned in item 1.0 & 1.1 hereinabove shall be executed as per following:- (a) The above item shall be quoted and executed on ground based on Contractor’s own design on Performance Guarantee Basis. The Performance Guarantee is related to achieving the 110 KWp generation with specified efficiency and efficacies. The Contractor shall also be responsible for desired operational efficiency and desired efficacies of the System during its life cycle of minimum fifteen years duly considering the ground situation. (b) The design shall be got vetted from any one of the following agencies(Approved Agencies):- (i) National Institute of Solar Energy (NISE) (ii) Sardar Swarn Singh National Institute of Renewable Energy Development Agency (iii) Any other Govt Approved solar plant design agency.

(c) The successful Contractor shall submit the following document duly vetted by any one of the approved agency, within Four weeks of placement of work order for approval of Accepting Officer. (i) Design Calculations : The tenderer should work out design based on the conditions prevalent at HQ SAC Trivandrum ground situation and site conditions as existing. The complete design calculations using PVSYS & PVSOL Software or any other software shall be submitted. (ii) Plan depicting layout of all equipment's of the PV syatem.This shall be self contained and self explanatory representation of layout of equipment's and sub-system. The dimensioned drawing of the site of work clearly marked with all subsystems components etc shall be submitted. (iii) Schematic Diagram of the electrical system: This shall contain specifications, sizes, current, voltage and fault levels rating of all cables, switch gears and instrumentation & control systems and all metering and interlocking and transformer specification / HT switch gear with capacity , LT control panel, LT/ HT cable size & Specification etc. (iv) All the documents/ technical details mentioned above duly vetted as specified above shall be approved by Accepting officer before placing final order. The GE may approve the document with concurrence of Accepting Officer as submitted by contractor or may suggest modification/ alteration in documents/ technical specifications duly supported with reasons for the same. The work shall be executed based on the approval. (v) The design drawings and other technical details submitted by the successful contractor, along with all calculations, drawings, technical write ups etc shall become department property. Department may use these subsequently as deemed necessary. The contractor shall have no claim on these document and their subsequent use by the department.

(d) During execution the contractor must engage experienced engineer in the same field for supervision, monitoring and execution. The consultant shall certify that execution of the work has been done satisfactorily. The consultant shall certify that the work has been executed in accordance with vetted and approved design. All cost and charges for engagement of consultant shall be born by the contractor. (e) Department will give completion of the work to the contractor only on the basis of basis of completion report submitted by the consultant engaged by the contractor for design. (f) After Execution of project the contractors will verify generation of electricity as per vetted design in the PVSYST/PVSOL report submitted and connection of the same with existing 11 kV network. (g) The contractor shall ensure suitable arrangement for solar PV panels. (h) Contractor shall liase with the state electricity department for necessary permission / commissioning of ON Grid type solar panel at MES MRS substation system (j) Contractor needs to provide all necessary equipment/ control system required for On Grid (11 KV after step up transformer) power plant with existing commercial (11 KV) system. (k) 3.5 The Maintenance of the Power plant during defect liability period (by employing a skilled labour for at least once in a week or whenever necessary in addition to weekly maintenance) shall be the responsibility of tenderer and the quoted rate shall be deemed to be included for this provision. A register shall be maintained to record the same. If the contractor fails to maintain the plant as above, necessary amount shall be deducted from the performance Guarantee on completion of defect liability period (l) contractor should train the departmental personnel's for operation/ Maintanance for three months by OEM technical representative from date of commissioning/ completion (which ever is later) of solar plant.

Supply, laying & testing XLPE Insulated screened, PVC bedded , galvanised steel strip or wire armored , electric power cables heavy duty with stranded aluminium conductor, 1100 V grade of 3.5 core 240 sqmm complete all as specified and as directed

Supply laying & testing cable XLPE Insulated screened, PVC bedded , galvanised steel strip or wire armoured , electric power cables heavy duty with stranded aluminium conductor, 1100 V grade of 3.5 core 95 sqmm complete all as specified and as directed.

Excavation in trenches not exe 1.5 m wide and not exe. 1.5m in depth and getting out in soft / loose soil for laying of underground cables complete all as specified and as directed.

Supply and laying sub class 'B' old size bricks laid flat, dry with width of brick laid across the axis of the cable complete all as specified and as directed

Returning filling in two parts ie using riddle soil obtained from excavated soil up to 30 cm (8 cm below cable) and refilling the remaining depth of trench over the bricks using excavated soil complete all as specified and as directed.