CESC Green Power, a wholly owned subsidiary of Calcutta Electric Supply Corporation (CESC), is establishing solar cell and module manufacturing facilities, as well as other renewable energy value chain and ancillary manufacturing facilities, across India.

These facilities include an over 3 GW solar cell and module manufacturing plant, a battery manufacturing plant, a 60 MW renewable energy project, and multiple ancillary units with an investment of up to ₹50 billion (~$567.54 million).

CESC said it will provide CESC Green Power with fiscal support to ensure the project’s financial closure and implementation. This support will include equity infusion, strategic assistance, and institutional facilitation.

This year, India’s solar module manufacturing capacity under the Approved List of Models and Manufacturers (ALMM) reached the 100 GW milestone, up from just 2.3 GW in 2014, according to Union Minister for New and Renewable Energy Pralhad Joshi.

To accelerate the domestic manufacturing capacity across the solar value chain, the government has introduced ALMM List-II for solar cells, effective from June 2026. Starting September 1, 2025, all tenders require developers and installers to use solar modules compliant with the ALMM List-II for solar cells.

On August 1, 2025, the Ministry of New and Renewable Energy issued the first ALMM List-II for solar cells, enlisting nine domestic manufacturers with a cumulative annual production capacity of 13,067 MW.

In July this year, CESC issued a request for selection to set up a 40 MW/80 MWh standalone battery energy storage system in Kolkata under the build, own, operate, and transfer model.

In January, Purvah Green Power, another subsidiary of CESC, won a 150 MW interstate transmission system-connected wind-solar hybrid power project from CESC.

Last August, CESC acquired a 63.91% equity stake in Purvah Green Power at the cost of ₹2.05 billion (~$24.48 million). Purvah was a wholly-owned subsidiary of Crescent Power, which is a subsidiary of CESC.