Capacity Commissioning
NTPC Declares Commercial Operation of 800 MW Unit-2 at Patratu STPP Phase-I
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NTPC Limited has declared the commercial operation of Unit-2 (800 MW) of Patratu Super Thermal Power Project (STPP) Phase-I through its subsidiary Patratu Vidyut Utpadan Nigam Limited (PVUNL). The unit will commence commercial operations from 25 June 2026, increasing NTPC Group’s commercial generation capacity.
PRICE-SENSITIVE TRIGGER
Event: Declaration of Commercial Operation Date (COD) for Unit-2 of Patratu STPP Phase-I
Type: Capacity Commissioning / Operational Update
Impact: Positive
Immediate Effect: The commencement of commercial operations enables revenue generation from the newly commissioned unit and increases NTPC Group’s commercial power generation capacity.

Key Metrics:
- Project:Â Patratu Super Thermal Power Project (STPP) Phase-I
- Unit Commissioned:Â Unit-2
- Capacity Added:Â 800 MW
- Project Configuration: 3 × 800 MW
- Commercial Operation Date:Â 25 June 2026
- Total Installed Capacity of NTPC Group:Â 90,857 MW
- Total Commercial Capacity of NTPC Group:Â 89,777 MW
Highlight:
- Capacity Addition:Â 800 MW commercial capacity added through Unit-2 of Patratu STPP Phase-I.
What Happened ?
NTPC Limited informed stock exchanges that Unit-2 (800 MW) of Patratu Super Thermal Power Project (STPP) Phase-I, operated through its subsidiary Patratu Vidyut Utpadan Nigam Limited (PVUNL), has been declared under commercial operation.
The commercial operation will become effective from 00:00 hours on 25 June 2026. The announcement follows NTPC’s earlier communication regarding the project and marks another milestone in the phased commissioning of the 3 × 800 MW thermal power project.
Following the declaration, NTPC Group’s total installed capacity has reached 90,857 MW, while its commercial capacity stands at 89,777 MW.
Key Details
Project Commissioning & Capacity Expansion:
- Commercial operation has been declared for Unit-2 of Patratu STPP Phase-I.
- The commissioned unit has a generation capacity of 800 MW.
- The project is being developed through Patratu Vidyut Utpadan Nigam Limited (PVUNL), a subsidiary of NTPC.
- Patratu STPP Phase-I has a planned configuration of 3 units of 800 MW each.
- Commercial operations will commence from 25 June 2026.
- The commissioning contributes to NTPC’s ongoing capacity expansion strategy.
- The project enhances power generation availability within NTPC’s thermal generation portfolio.
- Total installed capacity of NTPC Group has increased to 90,857 MW.
- Commercial capacity of NTPC Group now stands at 89,777 MW.
Note:
- Commercial operation declaration is a critical milestone for power generation projects as it marks the transition from construction and testing phases to revenue-generating operations. The addition strengthens NTPC’s generation portfolio and supports long-term electricity demand growth.
Risk Analysis
Summary:
- While commercial operations have commenced, long-term performance will depend on plant availability, fuel supply security, operational efficiency, regulatory developments, and power demand conditions.
Key Risks:
- Sustained plant load factors will determine actual revenue realization.
- Coal supply availability remains important for uninterrupted operations.
- Changes in power tariffs or regulatory policies may affect profitability.
- Operational outages or maintenance shutdowns could impact generation levels.
- Environmental compliance requirements continue to influence thermal power operations.
Worst Case:
- Lower-than-expected plant utilization, fuel supply disruptions, or regulatory challenges could reduce the economic benefits expected from the newly commissioned capacity.
Risk Level: Low
Company Commentary
- NTPC has declared commercial operation of Unit-2 (800 MW) of Patratu STPP Phase-I.
- The project is being executed through subsidiary PVUNL.
- Commercial operation will commence from 25 June 2026.
- The project forms part of the 3 × 800 MW Patratu STPP Phase-I development.
- NTPC Group’s total installed capacity has reached 90,857 MW.
- Commercial capacity of the group stands at 89,777 MW following the commissioning.
Official Exchange Filing: NTPC Limited


