Gujarat has issued a tender to solarise government buildings under a 50 megawatt (MW) rooftop programme that bundles supply, installation, commissioning and a 10-year maintenance obligation. The Gujarat Energy Development Agency will assess contractors periodically on installations completed, systems commissioned and progress against stipulated timelines and may reallocate sites from those that fail to meet milestones. The procurement mandates domestic content for photovoltaic cells and modules, DCR compliance and a minimum module rating of 400 Wp with 19.5 per cent efficiency.

The tender sets technical and quality standards aligned with applicable IEC and BIS norms and requires modules to withstand wind speeds of up to 150 kmph. Modules must carry a 10-year material warranty and performance warranties limiting degradation to 10 per cent after 10 years and 20 per cent after 25 years. Systems will be battery-less, grid-connected rooftop installations incorporating mounting structures, inverters, protection equipment, cabling, earthing and metering and must comply with Gujarat Electricity Regulatory Commission (GERC) net-metering regulations and DISCOM connectivity requirements.

Bidders must provide performance security covering the entire 10-year comprehensive maintenance contract period, with release conditional on successful completion, submission of quarterly maintenance reports and maintaining a performance ratio above 70 per cent in every quarter. Payment options include a 30 per cent advance against an equivalent bank guarantee, staged payments linked to installation and commissioning and a consolidated option after third-party inspection and rectification of any deficiencies. Eligibility requires an average annual turnover of at least Rs 70 million (70 mn) and proven experience in rooftop solar projects in Gujarat.

The tender was issued on 24 August 2026 and bids are due on three September 2026 with technical bids scheduled to open the same day. Other states have used tenders to scale rooftop solar on government buildings, with Delhi’s Indraprastha Power Generation Company Limited (IPGCL) offering a 50 megawatt implementation split into 25 packages of two MW each under a RESCO model and Rajasthan and Haryana running large programmes including packages of 33 MW and earlier listings totalling 511 MW. Gujarat’s approach differs by bundling long-term maintenance with supply and commissioning to secure performance and cut fossil-fuel electricity consumption.