NHPC completes trial run of Unit 2 at Subansiri Lower hydropower project

NHPC Limited has completed the trial run of Unit 2, with a capacity of 250 MW, at the Subansiri Lower Hydroelectric Project, successfully concluding the process on 18 December 2025.  

The Subansiri Lower Hydroelectric Project has a total planned capacity of 2,000 MW, comprising eight units of 250 MW each, and is located across Assam and Arunachal Pradesh. The company said it will inform stakeholders of further developments in due course.

NHPC achieved test synchronisation of Unit 2 with the national grid on 2 December 2025.  

Image Source: NHPC