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| 1 | O&M activity |
| 2 | Management of complete O & M activities by O&M incharge. I. One (1) Engineer (B. Tech in Electrical Engg.) with 33 kV Power station/switchyard working experience to be appointed who will be the overall O & M in-charge of the plant. Major responsibilities of O&M incharge :(i) Allotment of work to all the O&M staff and supervision of O&M works as per schedule approved by BHEL. (ii) Sending Daily, weekly and Monthly report to BHEL by mail. (iii) Interaction with customer / NTPC/ SLDC etc.iv) Co-ordinating and liasioning with SRLDC for declaring forecast and DSM data on daily basis as per grid protocol. (v) Coordinating with sub-station upon grid failures /cable faults and implementing the needful steps to restore the plant to normal operation. (vi) Monthly downloading of data from ABT meter using CMRI / as instructed by NTPC. (vii) Maintaining plant records and log books, stock register and reporting to BHEL.(viii) Trouble-shooting and Updation of SCADA system if required as instructed by BHEL. (ix) Theft incidents: immediate reporting to BHEL, filing FIRs at police stations on BHEL behalf, coordination for site inspection by insurance companies and clearance of insurance claims, logging of events (date, time) and maintaining records.(x) Accidents: immediate reporting to BHEL, coordinating with hospitals, logging of events (data, time) and maintaining records. Payment for Services of O & M in Charge shall be as per attendance records maintained and deductions will be passed in case of non-availability (Proportional basis). |
| 3 | Plant Operation works such as(i) Logging of DC, AC, grid parameters (current, voltage, power, energy) at PCUs, HT panels, transformer temperatures, equipment tripping/ breakdown, grid outage as per BHEL formats.(ii) SCADA data station / HMI PC operations/operation for daily monitoring of weather parameters, trend graphs and urgent reporting to BHEL in case of any problems / anomalies observed with any of the parameters, resolving communication issues between SCADA and other equipment, healthiness of all equipment. (iii) Supervision of electricians deployed per shift. Minimum 2 (Two) technicians (with Diploma in Electrical with 3 years of experience). They should have necessary skills in operating electrical / electronic / mechanical equipment, taking measurements, data logging / maintaining registers, preparation of reports in computer. The O&M works mentioned are indicative. All the activities required for O&M shall be carried out by technicians as instructed by BHEL. Monthly reports to be prepared and submitted by mail to BHEL for the various parameters including Earth resistance, String current, Energy exported etc. as per report formats finalized by BHEL.Diploma technician must be certified for operating installations of 33KV and above. Certificate / license copy to be submitted to BHEL before commencement of O&M works.One technician to be posted in Night shift operation.Measurement of above avtivities shall be done as per O&M Log book records maintained. Deductions shall be passed in O&M Contractor Bills for any activities not completed. |
| 4 | Electrical operation works (i) Logging of plant operation data as instruction of technicians.(ii) Attending faults in electrical systmes and reporting Minimum 4 (Four) electricians with field experience in solar plant to be deployed. They should have necessary skills in attenting faults in DC/AC systems under supervision of technicians. The O&M works mentioned are indicative. One electrician to be posted in Night shift operation.Measurement of above avtivities shall be done as per O&M Log book records maintained. Deductions shall be passed in O&M Contractor Bills for any activities not completed. |
| 5 | Carrying out Preventive and Breakdown maintenance as per O & M schedule / OEM guidelines / maintenance manual such as a) Cleaning, tightness checks, lubrication and other maintenance of equipment -PCUs, HT panels, Inverter transformers, Auxiliary transformers, ACDB, FCBC, UPS, Battery banks, SCBs, SCADA, WMS, Fire Alarm, ESE Lightning arresters, earthing, light fitting -indoor and outdoor etc.Minimum 1 technicians (Diploma/ITI) and minimum 1 Labour to be allocated for this activity.(i) List of equipemts is indicative. Maintenace of all the equipments installed in plant is in vendor\"s scope. (ii) Periodic maintenance shall be preferably carried out during early morning or evening to avoid generation loss. (iii) Whenever a fault has occurred, the contractor has to attend to rectify the fault & the fault must be rectified within 48 hours from the time of occurrence of fault. (iv) Major spares such as complete equipment failures of CT, PT, LA, Breaker, Isolator, SCB, PCU, transformer, cables, HT termination and jointing kits etc. if any will be supplied by BHEL. (v)Minor spares and consumables such as MCBs, all type of Fuses (for SMB, PCU and for all other equipments), Lights in PV area, switch yard & buildings , fans, indication lamps, gaskets, silica gel, transformer oil for top-up. Acid for battery, Fastners, termination kits, cable lugs, glands and heat shrinkable sleeves of all required sizes, MC4 connectors, PCU dust filter,sanitary fittings. if required shall be supplied by vendor. vi) In case of Maintenance activity / failure / damage / accident / replacement / repair required for any of the plant equipment such as Solar modules, HT panels, all transformers etc. or for any other site related activities, unloading, erection, installation, charging, co-ordination with agencies involved, etc., shall be in O & M vendor’s scope. Arrangement ofCrane / hydra / JCB/ additional labour hiring / Ladder, etc., for arranging replacement of failed equipment shall also be in the scope of O&M vendor. (vii) All tools and tackles, measuring instruments, testing equipment required for maintenance activities shall be arranged by O&M vendor.Measurement of above avtivities shall be done as per O&M Log book records maintained. Deductions shall be passed in O&M Contractor Bills for any activities not completed. |
| 6 | Operation & Maintenance of Module washing System installed by BHEL. Washing of SPV modules fitted on floater – Solar array consists of total 94680 number of PV modules distributed in 10 blocks. Each PV modules must be cleaned at least thrice in a month by using water and Wiper. Use of wiper/mop is must. Cleaning of modules shall be carried out block wise. All type of tools & tackles required for operation & maintenance of module washing system shall be arranged by contractor. Cleaning of floater and pathways also need to be attended as and when required. (i) Required labourers (Minimum 18 Nos.) to be allocated to complete this activity withing the schedules time period.(ii) Reservoir Water shall be used for the modules cleaning. (iv) All the consumables for cleaning of modules such as cleaning brushes, mopping sticks etc. shall be arranged by vendor. Detergent/any other chemicalshall not be used for module cleaning without written permission from BHEL/NTPC. (v) In case of natural cleaning of solar modules by rains and cleaning not carried out, no payment will be done for that cycle within the month. (vi) Three cycles of cleaning by wiping of entire solar modules has to be completed in a month by the vendor. In case, lesser quantity of solar modules are cleaned, proportionate payment will be made for quantity of solar modules cleaned up to last day of each month. (vii) Each solar module is of 2m x 1m size and mounted on each Pontoon. (viii) The module washing system installed by BHEL comprising Booster pumps, HDPE pipe network, Valves, hose pipes etc. O & M of the system shall be in contractor\"s scope. All type of tools and tackles required for maintenance of MWS shall be arranged by contractor.Measurement of above activity shall be done as per cycle basis. Deductions shall be passed in O & M Contractor Bills for any incomplete work.Bidder shall supply minimum 30 number of life jacket and maintain the same throught O & M period. Personnel enterting the pond and pond embankment area must wear the same all the time. in case of faliure to wear, bidder are liable for fine imposed by BHEL/NTPC. |
| 7 | Deployment of 7 (Seven) Unarmed Security Guards 24x7including national holidays for the entire plant including pond side and at switchyard to be deployed min. 2 nos. each in 1st and 2nd shift. 3 nos. in third shift.(i) Securing entire plant area.(ii) In case of theft, FIR to be lodged by O&M vendor. (iiI) If theft incidents are due to negligence of O&M vendor such as shortage of security, the loss recovery shall be done from vendor.Measurement of Services of Security guards shall be as per attendance records maintained and deductions will be passed in O&M Contractor Bills in case of non-availability at site. |
| 8 | General maintenance works such as Daily housekeeping activity for Main Control room and Electrical Equipment Rooms including toilets, Garbage removal from solar array area, grass cutting at transformer yard, switchyard, and for clearing vegetation which may foul with Ropes and wires of the floater system from the bund area, repair of plumbing works, Sintex tanks, cleaning of sewerage lines, septic tanks, soak pits if required, minor civil repair works such as leakages, doors, windows, rolling shutters, ventilators, floor/ tiles/ wall cracks, cleanning of drains etc. (i) Required labourers (Minmum 1 for general Housekeeping and 1 nos. for grass cutting and specific housekeeping work) to be allocated for this activity. (ii) All the buildings - Main Control room and Electrical Equipment Rooms to be mopped daily and surroundings to be kept clean.(iii) All toilets to be cleaned daily.(iv) Regular Grass cutting at transformer yard, switchyard, and for clearing vegetation which may foul with Ropes and wires of the floater system from the bund area.(v) All tools & consumables required for this activity shall be in vendor\"s scope.Measurement of above activities shall be done as per O & M Log book records maintained. Deductions shall be passed in O & M Contractor Bills for any activities not completed. |
| 9 | Floater and Floater Pathways maintenance : Periodic maintenance shall be carried out for checking the floater condition, sign of crack/ damage, Tightning of mooring ropes and any other maintenace needed to maintain healthiness of floating island as per OEM\"s O & M Manual.This includes replacement of faulty PV Modules, floaters used for PV modules, nut, connections between floaters etc.Minimum two Persons required for maintenance of Floater Island. Periodic maintenance shall be carried out for checking the floater condition, sign of crack/ damage, sinking of floaters, fitment of HDPE floater caps, tightness of nuts & lock nuts, fitment of PV Module mounting arrangement, any looseness of spreader bars, any tightening of mooring ropes, and any other maintenance needed to maintain healthiness of floating island. In case a mooring line is found too tight and the spreader bar is also visibly dropping in water, then the same to be immediately informed to BHEL team. This includes replacement of faulty PV Modules, floaters used for PV modules etc. and any other maintenance needed to maintain healthiness of floating island as per OEM\"s O & M Manual. |
| 10 | DRONE INSPECTION WITH THERMAL IMAGING OF FLOATING SOLAR PLANT Frequency of drone survey for thermography shall be weekly per block during the PG test period of the plant for period of three to four months and thereafter shall be monthly once per block during the regular O&M period. Experienced operator shall be made available for operating and conducting the regular Drone survey of the system as above till end of the O&M period. Mantaining and upkeep of the Drone with accessories such as Thermal Camera, software and hardware for obtaining and analysing the survey inpurts for O&M purpose shall be under scope of the O&M vendor. Necessary approvals shall be obtained from Owner (NTPC) for movement of the drone over the reservoir. |
| 11 | MEASUREMENT OF WATER DEPTH OF THE RESERVOIR AND MOORING LINE LENGTHSThe water depth in the Kayal shall be measured by O & M contractor fortnightly and report of the same shall be provided to BHEL. Contractor shall measure the water depth as per co-ordinates given by BHEL through ultrasonic water level or through conventional method. Minimum 20 points to be measured for water depth in one measurement. The measurement shall be taken through boat and required no. ofpersons, as suitable. All the mooring line lengths as detailed in table 1 shall be pulled from the spreader bar side and the extra slack length to be noted and entered against the mooring line no. This activity shall be done fortnightly and report to be submitted to BHEL. |
| 12 | Annual maintenance of all transformers with respect to BDV measurement, PPM measurement and Oil filtering as required, DGA test, tightness of cables, earthing and hardwares, replacement of gasket, silica gel breather, paint touchup, arresting oil leakages and oil topup work of all transformers (33KV and aux transformers) and other related electrical works.Through OEM / competent testing agencies as approved by BHEL. All required tools, tackles, testing and measuring instruments, Oil filtration kit, DG setand transformer oil for top-up etc. to be arranged by vendor.The Annual Maintenance activities shall be carried out as per OEM schedule and will be measured only when all activities listed are completed. Payment for any Maintenance not carried out shall be deducted from O&M Contractor Bills. |
| 13 | Annual testing and calibration of 33 kV HT panel equipment such as VCBs, CTs, PTs, Numerical relays, electromechanical relays, MFMs etc at 4 nos. of inverter cum switchyardThrough OEM / competent testing agencies as approved by BHEL. All required tools, tackles, testing and measuring instruments, DG set etc. to be arranged by vendor. This shall be asper the schedule mentioned in O & M schedule. |
| 14 | Calibration of Weather Monitoring Station equipmentWeather monitoring station equipment to be calibrated at IMD or OEM recommended labs as per calibration period of individual equipment as recommended by OEM. |
| 15 | Checking and re-filling of Fire extinguishers and sand buckets as requiredAll the fire extinguishers to be checked for healthiness and re-filling to be carried out as and when required as per validity of fire safety. |
| 16 | Maintenance and Servicing of Furniture, Water purifier, fans, lights etc. Complete maintenance and servicing of equipment as and when required to be carried out by vendor. |
| 17 | Painting of all metal structures (non-galvanized), PEB Rooms, rolling shutters, switchyard and transformer yards fencing and gates etc.Painting of all metal structures shall be carried out once in every year. |
| 18 | Providing internet leased line connection of min. 1 MBPS speed including required hardware for 24 hours internet facilityInternet connection to be taken in the name of NTPC.Monthly charges to be paid by Contractor. |
| 19 | Coordination and liasoning with CEA for renewal of CEA approval and other statutory bodies as applicable.Vendor shall coordinate and liason with CEA for renewal of complete plant approval including 33KV Transmission line/ cable and NTPC side substation bays. Official charges if any to CEA will be paid by Contractor. BHEL will re-imburse the same as extra than BOQ rate. |
| 20 | Arrangement of one scuba diver at site for any type of works under waterPeriodic underwater Inspection of anchroing ropes and mooring arrangements shall be done as per requirement of site. |
| 21 | Arrangement of Jeep/car for for daily movement of the O&M staff along with BHEL personnel from reservoir area to Switchyard area and around the bund roads for necessary checks The Contractor shall arrange for a vehicle throughout the tenure of the O&M contract for daily movement of the O&M staff along with BHEL personnel from reservoir area to Switchyard area and around the bund roads for necessary checks. The vehicle shall be a car/jeep with all requisite valid fitness and registration documents, permits, licensed driver and compulsorily have the NTPC-CISF Gate permit for entry to switchyard and NTPC EMD and other offices inside the Thermal plant. |
| 22 | Arrangement of Drinking water for O & M Staff in Control room i. Arrangement of Bottled Water Dispenser (Voltas/Any reputed make) with heating, normal and cooling mode. Operation, maintenance and upkeep of the equipment shall be in Contractor\"s scope.ii. Daily ararngement of Bottled water for drinking purpose. |
| 23 | Monthly recharge of SIM cards (3 nos.)Recharge for SIM Card Installed in mini RTU (2 no\"s) and one Sim Card for SLDC communication |
