NHPC Resumes Commercial Operations of Two 170 MW Units at Teesta-V Power Station in Sikkim

What Happened ?

key details

Resumption of Teesta-V Commercial Operations:

• Commercial generation has resumed for Unit 1 and Unit 2 of the Teesta-V Hydroelectric Power Station.
• Each unit has an installed capacity of 170 MW, resulting in a combined restored capacity of 340 MW.
• The restart followed successful synchronization with the electricity grid.
• Commercial operation became effective on July 13, 2026, at 5:00 PM.
• The remaining 170 MW Unit 3 has not yet resumed commercial generation.
• NHPC will issue a separate notification once Unit 3 becomes commercially operational.

Business Impact:

• Restoration of 340 MW increases NHPC’s available hydroelectric generation capacity.
• Improved plant availability supports electricity supply commitments and operational efficiency.
• Partial restoration strengthens revenue-generating capacity from the Teesta-V project.
• The announcement marks progress toward full normalization of operations at the station.

Operational Implications:

• Two-thirds of the plant’s installed capacity has returned to commercial service.
• Grid synchronization confirms operational readiness of the restarted units.
• Full operational restoration will depend on commissioning of the remaining generating unit.

Note:

• The Teesta-V Power Station has a total installed capacity of 510 MW (3 × 170 MW). Commercial operation of the final unit will be announced in due course.

Risk Analysis

Summary:

• While the restart of two units is operationally positive, the plant has not yet returned to full capacity as one generating unit remains pending for commercial operation.

Key Risks:

• Remaining 170 MW Unit 3 is yet to resume commercial generation.
• Full revenue recovery depends on restoration of all three generating units.
• Hydroelectric operations remain exposed to hydrological and operational risks.

Worst Case:

• If the remaining unit experiences commissioning delays or operational issues, the station may continue operating below its full installed capacity, affecting generation potential.

Risk Level: Low

Company Commentary

• Unit 1 and Unit 2 of the Teesta-V Power Station have resumed commercial generation.
• Commercial operation commenced on July 13, 2026, at 5:00 PM, following synchronization with the grid.
• NHPC will separately inform the exchanges regarding the commercial operation of Unit 3.