GRE Renew Enertech has won the Solar Energy Corporation of India’s (SECI) auction to set up 1 MW rooftop solar systems at the Rashtrapati Bhavan under Tranche III of RTSPV under the renewable energy service company model.

GRE Renew Enertech quoted a tariff of ₹2.7 (~$0.03)/kWh to win the entire tendered capacity.

The systems will be set up in five buildings in Rashtrapati Bhavan.

The tender was floated on September 10, 2025.

The project entails the design, erection, testing, and commissioning of the solar systems.

It also involves providing operation and maintenance (O&M) services for 25 years.  GRE Renew must ensure preventive and breakdown maintenance, cleaning, replacement of defective parts, insurance, online monitoring, and joint meter readings.

The rooftop systems must be commissioned within nine months of signing the power purchase agreement.

GRE Renew must obtain net metering and grid connectivity for the projects.

The project must use solar modules and cells from the Ministry of New and Renewable Energy’s Approved List of Models and Manufacturers.

The modules used must be warranted to deliver at least 90% of their peak output at the end of 10 years and 80% at the end of 25 years.

GRE Renew must pay service charges of ₹1,350 (~$15.06)/kW plus GST to SECI for administrative overheads and coordination with the client organization, government authorities, and others. The service charges will also comprise pre-commissioning and commissioning expenses, as applicable.

Only commercially established and operational technologies must be used to minimize technology risk and achieve timely commissioning.

The annual capacity utilization factor should be at least 15%.

Recently, SECI awarded 5.8 MW of the 6.25 MW capacity to Enfros Solutions, Himalayan Solar, Stockwell Solar, and Sesola Power Projects to set up rooftop solar projects across nine government institutions in six states.

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