Lower Solu Hydropower Project

Lower Solu is an 82 MW run-of-river hydropower project under construction in the Solukhumbu district — part of the Dudh Koshi river system that includes the benchmark Sahas Urja (Solu Khola, 86 MW) project.

Summary

Lower Solu is an 82 MW run-of-river hydropower project under construction on the Solu Khola in Solukhumbu district, part of the Dudh Koshi river system. It enters a corridor with an established capital-efficiency benchmark set by Sahas Urja's 86 MW Solu Khola project. The page tracks it as a build-cost-discipline case study using the current ICRA/Sahas Urja source set.

Solu Corridor

The Solu Khola / Dudh Koshi river system in Solukhumbu has emerged as a significant eastern Nepal hydropower corridor. Sahas Urja's 86 MW Solu Khola project (commissioned March 2023) demonstrated that with disciplined capital deployment — achieving NPR 172–175 million/MW vs. industry averages exceeding NPR 200–250 million/MW — projects in this corridor can generate strong financial returns even under the standard NPR 4.80/8.40 PPA framework. Lower Solu, at a comparable 82 MW, enters a corridor with an established benchmark and transmission infrastructure shaped by its predecessor.

The Sahas Urja Benchmark

The success of Sahas Urja creates both opportunity and pressure for Lower Solu:

• Opportunity: Transmission infrastructure exists, river hydrology data is available, and the financing community has a positive reference point in the same valley
• Pressure: Sahas Urja's NPR 172–175 million/MW build cost, 69% PLF, and NPR 900M+ annual profit set a high bar that investors will compare against

Build Cost Discipline

The single most important variable determining Lower Solu's financial outcome is construction cost per MW. In the fixed-tariff regime where every MW-hour sells at the same regulated rate regardless of how much it cost to build, capital efficiency is the only lever for profitability. Sahas Urja proved that ~NPR 173M/MW is achievable in this corridor; projects that drift toward NPR 250M/MW or beyond will struggle to achieve positive equity returns.

Specifications

See Also

• Run-of-River Hydropower
• Buildability
• Mission 1: Sahas Urja (Solu Khola, 86 MW) — Benchmark IPP Success

Limitations & Controversies

The current page is strongest on corridor-benchmark and capital-efficiency context. It does not independently verify current construction progress, final cost per MW, commissioning date, financing closure, or environmental/social compliance status beyond the existing source set. The Sahas Urja benchmark creates comparative pressure, but Lower Solu's actual cost and performance will require project-level verification before detailed financial analysis.

Sources

• Mission 1: Sahas Urja (Solu Khola, 86 MW) — Benchmark IPP Success