Tehri variable speed PSP's first unit of 250 MW begins commercial operations
New Delhi:
THDC India Limited
(THDCIL) announced the commencement of the commercial operation declaration (COD) process of the first 250 megawatt (MW) unit of the 1,000 MW Variable Speed Pumped Storage Plant (PSP) at Tehri in Uttarakhand.
According to the company, the Tehri PSP is the largest of its kind developed by any Central Public Sector Enterprise (CPSE) and the first variable speed PSP in the country.
The COD process of the unit was virtually addressed by Union Minister of Power, Housing and Urban Affairs Manohar Lal. The event was attended by Pankaj Agarwal, Secretary, Ministry of Power; Akash Tripathi, Additional Secretary, Ministry of Power; Gurdeep Singh, Chairman and Managing Director (CMD), NTPC; and senior officials of THDCIL.
'The successful operation of the first unit of India's first Variable Speed Pumped Storage Plant at Tehri is not just a technological achievement by THDCIL, but a bold stride towards India's energy self-reliance. The project will significantly strengthen our grid stability and support the integration of renewable energy.
Variable speed technology
allows us to manage power flow with precision,' the minister said.
Pankaj Agarwal said, 'The Variable Speed Pumped Storage Plant at Tehri is a path-breaking development that significantly strengthens our grid flexibility. It plays a pivotal role in our mission to integrate increasing amounts of renewable energy and transition towards a cleaner, more reliable energy ecosystem.'
NTPC CMD Gurdeep Singh said, 'This milestone reflects the high-end engineering capabilities of Indian PSUs in the hydropower sector. It sets a powerful precedent for future PSP developments across the nation.'
R.K. Vishnoi, CMD, THDCIL, said, 'Once fully operational, this project will elevate the Tehri Hydro Power Complex's capacity to 2,400 MW, making it India's largest Hydropower Complex. This project will be instrumental in converting off-peak surplus energy into peaking power, enhancing grid resilience and supporting round-the-clock power availability.'
The 250 MW variable speed unit and its associated power electronics have been supplied by GE Vernova, which is also part of the project consortium alongside Hindustan Construction Company (HCC) and other stakeholders.
The project is designed to provide flexible peaking power and critical grid balancing support, enabling management of intermittent renewable energy generation.
The commissioning event also saw the participation of L.P. Joshi, Executive Director (Tehri Complex), and other senior officials from THDCIL and GE Vernova
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