Archive · 12 Jun 2025
Subansiri Hydro Project Commissioning Delayed Until 2026
Imagine a big electricity-making dam is being built, but it's taking a long time.
The company said it will be ready by May 2026, which is way later than they first said.
The recent rains caused small damage to part of it, but the main part is still okay.
Building this project has also become way more expensive than planned.
Construction was stopped for a long time because people were worried about the dam.
They have to keep fixing issues before they can finish the dam.
Subansiri hydro project commissioning delayed to May 2026.
Minor damages occurred during monsoon rains, specifically to the spillway lip.
The main dam structure remains unaffected by the damage.
Project cost has increased significantly, now estimated at Rs 26,075 crore.
Construction work was stalled previously due to local protests.
- Who
- National Hydroelectric Power Corporation (NHPC).
- What
- Subansiri Lower Hydro Electric Project (SLHEP) commissioning delayed due to minor monsoon damages.
- When
- Commissioning delayed to May 2026.
- Where
- Assam-Arunachal Pradesh border at the Subansiri Lower Hydro Electric Project.
- Why
- Monsoon rains caused minor damages to the spillway lip, and due to previous project delays and increased costs.
Concerns about Delays and Costs
NHPC Assurance
Project Timeline and Cost
Concerns about Delays and Costs
Project delays and escalating costs raise concerns about financial viability.
NHPC Assurance
NHPC is committed to completing the project and has addressed past obstacles to ensure it meets the new commissioning timeline.
Dam functionality and safety
Concerns about Delays and Costs
Minor damages from monsoon rains can create a risk
NHPC Assurance
The functionality of the dam is not affected by such minor damage
- Project Name
- Subansiri Lower Hydro Electric Project (SLHEP)
- Location
- Assam-Arunachal Pradesh border
- Capacity
- 2,000 MW
- Incident
- Minor damages during monsoon
- Revised Commissioning
- May 2026
- Original Commissioning
- December 2012
- Estimated Cost
- Rs 26,075.54 crore
- Developer
- National Hydroelectric Power Corporation (NHPC)
