NLC India has invited bids to procure 579.74 MWp solar modules for an 810 MW project at Rajasthan Rajya Vidyut Utpadan Nigam’s solar park at Pugal in Bikaner district.

Bids must be submitted by December 30, 2025. Bids will be opened on the same day.

Bidders must furnish an earnest money deposit of ₹43.27 million (~$483,709.6) and a document fee of ₹20,000 (~$223.54).

Selected bidders must submit a performance bank guarantee of 5% of the contract value.

The scope of work entails the manufacturing, supply, packing and forwarding, and transportation of the solar modules for the projects. It also entails providing transit insurance for these modules.

Selected bidders must provide the methodology for installing and commissioning the modules. They must provide demonstrations or training on the handling, installation, and commissioning of the modules to NLC India Renewables’ balance-of-systems contractor, if required.

Successful bidders must submit a minimum insurance coverage of 6% of the total order value for 25 years.

The solar modules must be bifacial and suitable for a system voltage level of 1,500 V, with a minimum fill factor of 0.75 and a bifaciality of at least 70±5%.

Additionally, the solar modules must utilize monocrystalline or TOPCon silicon technology. They must have a peak power rating of 580 MWp, dimensions of 2,272 (±20) mm × 1,133 (±3) mm, and a rounded-off wattage of at least 5 W, with no negative tolerance.

The modules must have a minimum design mechanical load of 1,600Pa downward and upward when fixed at a hole distance of 400 mm. Their back must be made of glass, with a thickness of 2 mm for glass-to-glass framed modules.

The solar modules must comply with the Approved List of Models and Manufacturers (ALMM). They must have a temperature coefficient of power per module of over -0.37%  per ^oC.

The solar glass must be heat-strengthened or semi-tempered, low-iron glass, with a thickness of 2 mm for a glass-to-glass framed module. The glass must have a transmittance of over 90% and bending of less than 0.3%.

The interconnected solar cells must be vacuum laminated to withstand adverse environmental conditions. The modules must use ultraviolet-ray-resistant ethylene-vinyl acetate (EVA) with at least 70% gel content for polyolefin elastomer, or EVA-polyolefin elastomer-EVA.

Framed modules must have frames made of corrosion-resistant materials, preferably with an anodized aluminum finish. The anodization thickness must be at least 15 microns.

The modules must have at least three bypass diodes. Their junction boxes must be IP 68-rated and weatherproof. They must be fitted at the back and be capable of withstanding standard wiring or conduit connection. Each junction box must also contain a bypass diode.

These modules must have a workmanship warranty for at least 12 years. The modules must also be warranted to have a minimum peak output wattage of 90% at the end of 12 years and 80% at the end of 30 years from the receipt of the last batch.

Each solar module must use a radio frequency identification tag for traceability. And two 1,200 mm stranded UV-resistant cables terminating directly with the DC plug-in connector.

The order must be completed within 180 days. Delays will attract a price reduction of 0.5% per week of late supply, capped at 5%.

Bidders must be ALMM-listed manufacturers and have supplied at least 200 MW of solar modules to customers before the bid opening date. At least one of their orders must have a minimum 50 MW capacity.

Alternatively, bidders can be a group, holding, or subsidiary company of entities meeting these requirements.

Bidders must have a positive net worth. They must have a minimum average annual turnover of ₹1.73 billion (~$19.33 million) over the previous three consecutive financial years.

Recently, NLC India invited bids to arrange 1,850 acres of land for the development of interstate transmission system-connected solar power projects and associated equipment, along with the extra-high-voltage transmission line and land fencing.

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