TNGECL Tenders 15 MW Solar and 45 MWh BESS Project in Thiruvarur

Tamil Nadu Green Energy Corporation Limited (TNGECL) has rolled out a new tender that’s catching the eyes of solar developers. The project? A 15 MW solar plant paired with a 15 MW/45 MWh battery energy storage system (BESS) in Thiruvarur. Bids must be in by December 29, 2025, with the bid opening slated for the next day.

Why This Project Matters

Solar power isn’t just about panels on rooftops anymore. With battery storage entering the mix, projects like this one are setting the stage for reliable, round-the-clock renewable energy. Thiruvarur’s solar potential, combined with BESS, could be a game-changer for Tamil Nadu’s grid stability.

The BESS Factor

Battery storage might sound like high-tech jargon, but it’s simple—think of it as a giant power bank for the grid. The 45 MWh capacity here can store excess solar energy during the day and release it after sundown. Companies like Tesla and LG Chem are already proving this tech works at scale.

Timeline and Logistics

December 29, 2025, is the deadline for submissions—no extensions mentioned yet. The bid opening on December 30 will reveal who’s in the running. If you’re a developer, now’s the time to sharpen your pencils.

Solar in Tamil Nadu: A Snapshot

Tamil Nadu isn’t new to solar. With its high irradiation levels, the state has been a frontrunner in India’s renewable push. Projects like this one could push it closer to grid parity—where solar costs match conventional power.

Challenges? Of Course

Land acquisition and grid connectivity are always tricky. But with TNGECL backing the project, developers might find smoother sailing. And let’s not forget the elephant in the room—battery costs. While prices are dropping, they still make up a chunk of the project’s budget.

What’s in It for Developers?

Aside from the obvious—a slice of Tamil Nadu’s solar pie—this project offers long-term revenue potential. With net metering policies evolving, feeding stored energy back to the grid could be lucrative.

Final Thoughts

Solar plus storage isn’t the future—it’s here. TNGECL’s Thiruvarur project is a clear signal that batteries are becoming a staple in India’s energy mix. Will this tender spark a storage boom? Only time will tell, but the industry’s definitely watching.