New Delhi: In a significant milestone for India’s hydropower sector, NHPC Limited has successfully commenced the Wet Commissioning of Unit-I (250 MW) of its flagship 2000 MW Subansiri Lower Hydroelectric Project (HEP). The event, which took place on 24th October 2025, marked the successful mechanical run of the machine — officially launching the commissioning phase for the first unit of India’s largest hydroelectric power project.
This achievement underscores NHPC’s ongoing efforts to contribute to India’s renewable energy transition while enhancing its hydroelectric generation capacity.
A Major Leap for India’s Clean Energy Mission
The commencement of Wet Commissioning for Unit-I is a defining moment for India’s clean energy aspirations. Once fully operational, the Subansiri Lower HEP will significantly enhance India’s green power capacity, playing a critical role in ensuring sustainable energy growth.
With an installed capacity of 2000 MW, this project is poised to be a game-changer in India’s renewable energy sector, helping meet the rising power demand in the northeastern region while contributing to the country’s net-zero emissions targets.
The Subansiri Lower HEP will be a major source of clean, renewable energy, reducing dependency on fossil fuels and supporting the national agenda for energy security and sustainability.
NHPC Leadership Marks the Historic Occasion
The wet commissioning ceremony was graced by senior leadership from NHPC, including:
- Mr. Bhupender Gupta, CMD, NHPC
- Mr. Sanjay Kumar Singh, Director (Projects)
- Mr. Suprakash Adhikari, Director (Technical)
- Mr. Mahesh Kumar Sharma, Director (Finance)
- Mr. Uday Sakharam Nirgudkar, Independent Director
- Mr. Santosh Kumar, CVO
- Mr. Rajendra Prasad, Executive Director & Head of the Project
In addition to these officials, senior officers from NHPC’s Corporate Office and the Subansiri Lower Project were also present to witness this remarkable achievement, highlighting the collective effort behind this milestone.
CMD, NHPC Calls It a Symbol of India’s Green Future
Speaking at the event, Mr. Bhupender Gupta, CMD of NHPC, expressed immense pride in the project’s success. He emphasized that the achievement was not just a technical milestone but also a symbol of India’s unstoppable march towards a cleaner, greener, and self-reliant energy future.
“This achievement is more than a project milestone — it is a symbol of India’s unstoppable march towards a cleaner, greener, and self-reliant energy future. Together, we flow forward, with the power of nature, innovation, and national pride,” said Mr. Gupta.
His remarks resonated with NHPC’s long-standing commitment to engineering excellence and national progress in the field of renewable energy.
About Subansiri Lower Hydroelectric Project
The Subansiri Lower Hydroelectric Project (HEP) is located on the Subansiri River, which forms the border between Assam and Arunachal Pradesh. Once completed, this project will be India’s largest hydropower facility under construction, with a total capacity of 2000 MW.
Apart from enhancing the national grid, this project will provide much-needed power to the northeastern region of India, which has historically faced challenges in energy availability. By contributing significantly to India’s sustainable energy goals, the Subansiri Lower HEP aligns with the nation’s broader vision of ensuring clean, green, and reliable power for future generations.
About NHPC Limited
NHPC Limited is India’s premier hydropower generation company and is wholly owned by the Government of India. With an installed capacity of over 7,000 MW, NHPC has established itself as a leader in the country’s renewable energy landscape, particularly in hydroelectric power generation.
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