The West Bengal Green Energy Development Corporation Ltd (WBGEDCL) has issued a tender for a 1.5 MW grid-connected rooftop solar power project at Kalyani Layer Farm in Nadia district, West Bengal.The estimated project cost is Rs 93.8 million (~USD 1.09 million). Bids must be submitted by 19 September 2025, and they will be opened on 22 September 2025.Tender Terms and Financial RequirementsInterested bidders must submit:• An earnest money deposit of Rs 1.87 million (~USD 21,744)• A tender document fee of Rs 10,000 (~USD 116), plus 18 per cent GSTThe successful bidder must also provide a performance bank guarantee equal to 10 per cent of the awarded contract value. If the quoted bid value is less than or equal to 80 per cent of the estimated cost, an additional 10 per cent security is required.Scope of Work and TimelineThe scope includes the design, manufacturing, supply, commissioning, and reliability testing of the rooftop solar installation, along with operation and maintenance for five years. The completion period is 120 days from the date of site handover.Any delays will attract liquidated damages of 0.5 per cent per week, up to a maximum of 5 per cent of the total contract price.The solar modules used must conform to the Ministry of New and Renewable Energy’s (MNRE) Approved List of Models and Manufacturers (ALMM).Eligibility CriteriaTo qualify, bidders must have:Executed at least one government or public sector solar project of 500 kW or above in the last five yearsDelivered one project worth 40 per cent of the estimated cost, two projects of 30 per cent each, or one ongoing project 80 per cent completedA minimum average annual turnover of 30 per cent of the project cost over the past three yearsWorking capital or bank credit equivalent to at least 30 per cent of the project valueRecent DevelopmentsIn a related move, the West Bengal Renewable Energy Development Agency recently issued a request for proposals to install 10 MW of rooftop solar capacity across multiple districts in the state, signalling the region’s expanding commitment to decentralised renewable energy generation.