After the Middle Vaitarna hydroelectric initiative, the Brihanmumbai Municipal Corporation (BMC) is set to establish a 100 MW floating solar power plant across the Tansa and Modak Sagar dams, marking a major step in the city’s renewable energy transition.

The project will be developed, financed, operated, and maintained by Mahatma Phule Renewable Energy and Infrastructure Technology Limited (MahaPreit) under a 25-year Build, Finance, Operate, and Transfer (BFOT) model.

According to BMC officials, the floating solar facility will generate around 219 million units of power annually, enabling annual savings of Rs 1.65 billion through subsidised electricity supply.

As part of a larger renewable energy plan encompassing Tansa, Modak Sagar, Vihar, Tulsi, and Powai lakes, the project will be fully funded by MahaPreit at an estimated cost of Rs 5.46 billion. The power generated will be supplied via Maharashtra State Electricity Distribution Company Limited (MSEDCL) infrastructure through open access, providing tariff benefits to high-consumption units such as the Pise Panjrapur and Bhandup water treatment complexes.

A senior civic official explained that the BFOT model ensures zero upfront cost for BMC, with electricity priced at Rs 4.25 per unit for the next 25 years. “By harnessing our reservoirs for renewable generation, Mumbai can significantly cut its carbon footprint, reduce dependency on fossil fuels, and achieve major cost savings — all without any need for land acquisition or additional approvals,” the official said.

The initiative forms a key part of the Mumbai Climate Action Plan, designed to promote sustainability and low-carbon urban growth through renewable energy integration.

Meanwhile, progress continues on BMC’s Middle Vaitarna hybrid power project, which combines 20 MW hydroelectric and 80 MW floating solar capacity. Approved by the State Water Resources Department in August 2025, the Rs 5 billion project covers 4.9 hectares of reserved forest land and is expected to produce around 208 million units of power annually once operational.

Together, these renewable energy ventures reflect Mumbai’s growing commitment to sustainable infrastructure, aiming to make the city a leader in urban green energy generation.