| 1 | Design, engineering, supply, erection, installation, testing and commissioning, including synchronization with the local utility grid, of a 50 kWp Rooftop On-Grid Solar Photovoltaic (SPV) Power Plant. The system shall conform to the latest MNRE / IREDA guidelines, applicable CEA regulations, relevant IEC/IS standards, and shall comply with Domestic Content Requirement (DCR). The scope shall include all Balance of System (BOS) components, accessories, protection, and interconnections necessary for safe, efficient, and reliable operation of the plant.
The system shall comprise, but not be limited to, the following major components:
Solar Photovoltaic Modules:High-efficiency, DCR-compliant mono/polycrystalline PV modules.IEC 61215 / IEC 61730 certified, PID-resistant, and with minimum 25 years performance warranty.
Module Mounting Structures:Hot-dip galvanized MS/Aluminium structures designed for rooftop installation.Aerodynamic, corrosion-resistant, tilt-optimized for site latitude.Wind speed resistance as per IS 875 / latest standards.
DC Cabling and Array Junction Boxes / Combiner Boxes
| 1.00 | EACH JOB |
| 2 | UV-protected, weather-resistant DC cables (IEC 62930 / TUV certified).
String monitoring / protection with fuses, SPD (Surge Protection Devices), isolators, and MC4 connectors.
Lightning Protection and Earthing:Comprehensive lightning and surge protection for PV arrays and electrical equipment.
Maintenance-free earthing system as per IS/IEC standards.
Power Conditioning Unit (Central / String Inverter):Grid-tied inverter with minimum 98% efficiency, anti-islanding protection, and remote monitoring capability. Compliance with IEEE 1547 / IEC 62116 / CEA grid regulations.
AC Cabling, Distribution Board & Grid Interface:AC cabling as per IS/IEC standards.
Synchronization with LT grid panel including necessary breakers, isolators, meters, and protection devices.
Weather Monitoring Station (WMS):Measurement of solar irradiance, module temperature, ambient temperature, wind speed, and direction.
Remote Monitoring & Control System (SCADA / Data Logger):Web-based monitoring system with real-time and historical performance data.
remote diagonistics, reporting and fault alerts.
Balance of System (BOS) and Accessories
Cable trays, conduits, junction boxes, signage, safety devices, and all other accessories required for a complete working system. | | |
| 3 | Solar Photovoltaic Modules: The proposed Solar Photovoltaic (SPV) plant shall deploy high-efficiency Mono-Crystalline Silicon modules of 540 Wp or higher capacity, optimally configured to suit the rooftop area for safe O&M. Each module shall have a minimum cell efficiency of 18% at Standard Test Conditions (STC), with a fill factor of at least 0.76, and the plant shall achieve a Performance Ratio (PR) of not less than 70% under normal operating conditions. Modules shall be designed with anodized aluminum frames for stability, IP67/IP68-rated junction boxes with bypass diodes for reliability, and high-transmittance tempered glass (>90% transmittance, optical loss <0.3%) for enhanced durability and energy gain. Make : VIKRAM solar,WAAREE, TATA,ADANI,RENEWSYS
Max Peak Power Pmax : 540Wp or more, Voltage at Max Power : > 41 V, Current at Pmax: > 12 A, Short Circuit Current: > 13 A, Open Circuit Voltage: > 49 V, Module Efficiency: > 20 % | | |
| 4 | All modules shall comply with international and national standards, including IEC 61215 / IS 14286, IEC 61730 (safety), and IEC 62804 (PID resistance), as well as latest MNRE/IREDA specifications. Modules shall carry encapsulated RFID tags containing details of the manufacturer, solar cell origin, month/year of manufacturing, IV curve, and country of origin. Factory inspection shall be carried out to confirm these details, and the contractor shall intimate the inspection schedule in advance for verification of the above parameters by the officer nominated by the Accepting Officer. Electrical performance shall be guaranteed with a positive tolerance of 3 5% and no negative tolerance, a maximum power temperature coefficient of 0.50%/ C, and the ability to withstand operating conditions of 85% RH at +85 C and wind speeds up to 200 kmph. Earthing arrangements using copper earth plates shall be included in the scope, as per IS/MNRE/IREDA norms, without extra cost. The PV modules shall be DCR-compliant (Domestic Content Requirement) to align with MNRE policies. | | |
| 5 | Warranty terms include a minimum 10-year product warranty against manufacturing defects, and a performance warranty of at least 90% of rated capacity at 10 years and 80% at 25 years. The system is expected to deliver a minimum net annual generation of 1,450 kWh per kWp. Further, the contractor shall prepare the complete system design, including rooftop layout, array configuration, and module mounting arrangement, ensuring the roof is not damaged. The mounting structure design shall be robust, corrosion-resistant, and suitable for the building type. Both the shadow analysis and the mounting structure design shall be vetted and certified by a Government Engineering College before installation to ensure structural stability, technical soundness, and long-term performance reliability. | | |
