NHPC Limited has declared the commercial operation of Unit 5 (250 MW) of the Subansiri Lower Project from 00:00 hours on October 23, 2026. The commissioning increases the project’s operational capacity to 1,250 MW.
Located across Assam and Arunachal Pradesh, the 2,000 MW hydroelectric project comprises eight units of 250 MW each.
NHPC Subansiri Lower Project Reaches 1,250 MW
With Unit 5 entering commercial operation, five units — Units 1, 2, 3, 4 and 5 — are now operational. Together, they account for 1,250 MW of installed capacity.
NHPC stated that it will announce the commercial operation dates of the remaining three units in due course.
Remaining Units Await Commercial Operation
The company submitted the update to the stock exchanges under Regulation 30 of the SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. The disclosure follows its earlier announcements on the project’s progress.
The Subansiri Lower Hydroelectric Project is one of NHPC’s major hydropower developments in Northeast India. Once all eight units become operational, the project will have a total installed capacity of 2,000 MW.
