17.19 GWhGwh/yr

Energy Generation

3MW

Installed Capacity

About

The Midim Khola Hydropower Project is a 3 MW run-of-river plant developed by Union Hydropower Ltd. in Karaputar, Lamjung District, Gandaki Province. It is the company's first project and commenced commercial operations on 15th Magh, 2074 (January 29, 2018). Located on the Midim River, the project utilizes a design discharge of 7.3 m³/s and a net head of 48.69 m to generate an annual energy output of 17.19 GWh (2.91 GWh in the dry season and 14.28 GWh in the wet season). Key infrastructure includes a 22 m long concrete-infilled boulder weir, twin horizontal-axis Francis turbines (1.5 MW each), a 1.12 km inverted D-shaped headrace tunnel, a 6 m diameter surge tank, and a 120 m penstock. Power is evacuated via an 8.5 km, 33 kV transmission line to the national grid. The project reflects the role of small hydropower in Nepal’s energy mix, particularly in addressing seasonal deficits. It is fully owned and operated by a Nepali private developer under the standard PPA model with NEA, with no known community shareholding or international financing components.

Salient Features

Hydrology ( Intake )

Catchment Area 136.5 km2
Maximum Net Head 48.27 m
Maximum Gross Head 51.48 m

Head Works (Intake)

Diversion Height 5.5 m above natural bed
Diversion Length 2 m

Waterways

Headrace Tunnel-Length 1120 m
Headrace Tunnel – Length 1121.2 m
Penstock – Length 120 m

Powerhouse

Power House Surface
Design Head 20 X 10.5 m

Turbine

Type Horizontal axis Francis turbine
Rated Output 2 X 12.5 MW

Generators

Rated Capacity 17.6 MVA
Type Synchronous, Three Phase

Transformers

Number of Units 1
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Application for Survey License

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Survey License Approved

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Application for Generation License

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Under Construction

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Live

Location