In a landmark stride for sustainable energy in India, Secretary of Power Pankaj Agarwal has formally initiated the Commercial Operation Declaration (COD) process for the second 250 MW unit of the 1,000 MW Tehri Variable Speed Pumped Storage Plant (PSP) in Uttarakhand. Operated by THDC India Limited, the Tehri PSP stands as the nation’s largest hydropower complex run by a central PSU and the first of its kind to adopt variable‑speed technology thdc.co.in+15himachaltonite.com+15indianmasterminds.com+15.
Conducted virtually from New Delhi, the launch ceremony featured top dignitaries including Additional Secretary Akash Tripathi, Joint Secretary Mohammad Afzal, NTPC CMD Gurdeep Singh, and THDCIL CMD R.K. Vishnoi. Secretary Agarwal lauded the project as a major milestone for grid flexibility and India’s clean energy future observenow.com+10thenewsmanofindia.com+10government.economictimes.indiatimes.com+10. The inclusion of variable‑speed turbines—supplied by GE Vernova—equips the plant to adapt dynamically to grid demands, making it a pivotal asset for integrating variable renewable energy sources indianmasterminds.com+4saurenergy.com+4garhwalpost.in+4.
CMD Vishnoi highlighted that with all four units in operation, the Tehri Hydro Power Complex will offer 2,400 MW of power, further enhancing India’s energy independence. He emphasized that the PSP enables peak‑load generation and grid stabilization, supporting the nation’s energy sovereignty thdc.co.in+15thenewsmanofindia.com+15thenewsmanofindia.com+15. The commencement of this second unit, six days after the first, underscores THDCIL’s technical expertise and rigorous project management.
The Tehri PSP’s strategic design—four reversible 250 MW units linked to the Tehri and Koteshwar Dams—allows surplus power to be stored during low demand and released as needed, delivering an estimated 2,442 MU of clean energy annually eprmagazine.com+15infralog.in+15thenewsmanofindia.com+15pioneeredge.in+2thdc.co.in+2observenow.com+2. This reversible operation enhances system reliability while reducing dependence on fossil fuel peaker plants.
As India marches towards its renewable energy targets and net‑zero ambitions, the Tehri PSP illustrates how advanced hydropower can balance large-scale solar and wind integration. With Unit 3 and Unit 4 slated for commissioning by September 2025, this project paves the way for similar initiatives across the country . The commissioning of the second unit not only marks an engineering victory but also reaffirms the nation’s commitment to building a resilient and sustainable energy future.
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