Project Commissioning / Capacity Addition
NHPC Declares COD of Unit 4 of Subansiri Lower Hydro Project, Total 1000 MW Now Operational
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NHPC Limited has declared the Commercial Operation Date (COD) of Unit 4 (250 MW) of the Subansiri Lower Hydroelectric Project. With this, 4 units totaling 1000 MW are now operational, marking significant progress in the 2000 MW project.
PRICE-SENSITIVE TRIGGER
Event: Commissioning (COD) of Hydropower Unit
Type: Project Commissioning / Capacity Addition
Impact: Positive
Immediate Effect: Increase in operational capacity enhances revenue generation potential and improves asset utilization
Key Metrics:
- Unit Commissioned: 250 MW (Unit 4)
- Total Operational Capacity (Project): 1000 MW (4 units)
- Total Project Capacity: 2000 MW (8 units)
Highlight:
- 50% of the 2000 MW project is now operational, strengthening NHPC’s generation capacity
What Happened ?
NHPC Limited announced the Commercial Operation Date (COD) of Unit 4 (250 MW) of the Subansiri Lower Hydroelectric Project on May 8, 2026. With this development, four units (Unit 1 to Unit 4) of the project are now operational.
key highlights
Project Progress Update:
- Project: Subansiri Lower Hydroelectric Project (2000 MW)
- Location: Assam / Arunachal Pradesh
- Unit 4 (250 MW) declared operational
- COD effective from May 8, 2026 (00:00 hours)
- Total 4 units (1000 MW) now operational
- Remaining units to be commissioned in phases
Note:
- The project is one of India’s largest hydroelectric projects and is being commissioned in stages
Risk Analysis
Key Risks
- Delays in commissioning remaining units
- Hydrological risks affecting power generation
- Regulatory and environmental compliance challenges
- Cost overruns in large hydro projects
Worst Case Scenario
- Further delays or operational inefficiencies could impact expected returns from the project
Risk Level: Medium
Company Commentary
- COD declared for Unit 4 (250 MW)
- Total 4 units operational out of 8
- Remaining units to be commissioned in due course
- Disclosure made under SEBI Regulation 30
Official Exchange Filing: NHPC Limited