New Delhi: NHPC Limited has achieved a major milestone at its 2,000 MW Subansiri Lower Hydroelectric Project with the successful synchronisation of its fifth generating unit, with a capacity of 250 MW, with the National Grid. The unit was synchronised on October 12, 2026, at 9:00 PM.
With this achievement, the project has reached a cumulative synchronised capacity of 1,250 MW, making it NHPC’s largest project in terms of synchronised capacity from a single project. The development marks an important step in India’s hydropower expansion and is expected to strengthen the country’s power generation capacity and energy security.
The Subansiri Lower Hydroelectric Project is NHPC’s largest project, with a total planned capacity of 2,000 MW. The successful synchronisation of the fifth unit brings the company closer to the phased commissioning of the project’s remaining generating units.
NHPC’s Subansiri Lower Project Achieves 1,250 MW Synchronisation Milestone
The successful synchronisation of the fifth 250 MW unit marks another significant step in the commissioning of the Subansiri Lower Hydroelectric Project.
The key details of the project and the latest achievement are as follows:
- Project Name: Subansiri Lower Hydroelectric Project
- Project Capacity: 2,000 MW
- Company: NHPC Limited
- Latest Achievement: Synchronisation of the fifth generating unit
- Capacity of Fifth Unit: 250 MW
- Total Synchronised Capacity: 1,250 MW
- Date of Synchronisation: October 12, 2026
- Time: 9:00 PM
- Significance: NHPC’s largest project in terms of synchronised capacity from a single project
The milestone reflects progress towards bringing additional hydropower capacity into operation and supporting the stability and resilience of the National Grid.
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Senior Officials Attend the Unit Synchronisation Milestone
The occasion was attended by senior officials from the Ministry of Power and NHPC.
Those present included:
- Diwakar Nath Mishra, Additional Secretary, Ministry of Power, Government of India.
- Bhupender Gupta, Chairman and Managing Director (CMD), NHPC.
- Sanjay Kumar Singh, Director (Projects), NHPC.
Diwakar Nath Mishra congratulated NHPC, the Subansiri Project team, executing agencies and other stakeholders on the successful synchronisation of the fifth unit. He acknowledged the achievement as an important development in the progress of the hydropower project.
NHPC CMD Bhupender Gupta Acknowledges Stakeholders’ Support
NHPC CMD Bhupender Gupta expressed gratitude to the Ministry of Power, the governments of Arunachal Pradesh and Assam, previous NHPC leadership teams, the Subansiri project team, executing agencies and all other stakeholders for their continued support and perseverance.
He said the successful synchronisation of Unit 5 demonstrates NHPC’s technological capabilities and reinforces India’s commitment to a cleaner, greener and energy-secure future.
Gupta also highlighted the contribution of the project team led by Pradip Kumar Ray, Executive Director and Head of the Subansiri Lower Hydroelectric Project.
NHPC Director (Projects) Calls for Timely Commissioning of Remaining Units
Sanjay Kumar Singh, Director (Projects), NHPC, appreciated the dedication and efforts of the Subansiri project team.
He encouraged the team to maintain the momentum and focus on the timely commissioning of the remaining generating units.
The occasion was also attended by other senior NHPC officials, including:
- Narendra Kumar, Executive Director (Dibang).
- U. K. Nand, Executive Director (PMSG).
- Other senior officers from NHPC’s Corporate Office and the Subansiri Lower Project.
The participation of senior management and project officials highlighted the importance of the latest milestone in NHPC’s ongoing hydropower development programme.
Subansiri Lower Hydroelectric Project to Strengthen India’s Energy Security
With a planned installed capacity of 2,000 MW, the Subansiri Lower Hydroelectric Project is a major hydropower development undertaken by NHPC. The synchronisation of its fifth 250 MW unit takes the project’s cumulative synchronised capacity to 1,250 MW. The remaining units are expected to be commissioned in phases as the project progresses.
The project is significant for India’s efforts to expand renewable electricity generation and diversify its energy mix. Hydropower can also support grid flexibility by helping balance variations in electricity demand and generation from other sources.
About NHPC Limited
NHPC Limited is a Central Public Sector Enterprise under the Ministry of Power, Government of India. The company is engaged in the development and operation of hydropower projects and has also expanded its activities into other renewable energy segments. NHPC undertakes project development, construction, operation and maintenance, while continuing to focus on technological advancement and sustainable power generation.
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