Dibrugarh: National Hydroelectric Power Corporation’s (NHPC) 2,000 MW Subansiri Lower Hydroelectric Project at Gerukamukh has begun commercial operation of its fifth 250 MW unit, taking operational capacity to 1,250 MW.The unit achieved its Commercial Operation Date at midnight on Oct 23 after being synchronised with the National Grid on Oct 12 in the presence of Diwakar Nath Mishra, additional secretary in the Union ministry of power.Five of the project’s eight 250 MW units are now operational, representing 62.5% of its installed capacity. The first four units began commercial operation between Dec 2025 and May 2026.NHPC chairperson and managing director Bhupender Gupta described the development as a milestone in harnessing the northeast’s hydropower potential and strengthening energy security.“Achieving 1,250 MW operational capacity at the Subansiri Lower Hydroelectric Project marks a defining milestone in NHPC’s journey of nation-building and harnessing the strategic hydropower potential of the North-Eastern Region. As NHPC’s largest project, Subansiri Lower exemplifies our engineering excellence, collective resolve and unwavering commitment to national development,” Gupta said.Work on the remaining units is continuing. Once fully operational, the project is expected to support electricity generation, grid stability and the availability of renewable power in the region and beyond.
