28.2 MW
The first hydro phase forms the foundation of Betmai’s renewable-energy development, using a run-of-river weir arrangement.
01 / SEWA ENERGY
One connected energy future.
The Betmai project brings together hydropower, complementary solar development and transmission infrastructure for Sierra Leone.
Developing Betmai
Photograph 1 / 2Partnerships behind the project.
Bringing people and expertise together to advance renewable-energy development.
BETMAI / TONKOLILI DISTRICT
Renewable resources.
Shared purpose.
SERL is developing the Betmai Hydroelectric Project with a first hydro phase of 28.2 MW and an estimated first-phase cost of US$110 million.
The hydropower arrangement is a run-of-river weir. Complementary solar development is planned alongside the wider energy programme, with hydro and solar designed to evacuate power through a shared power substation into the Transco-CLSG network.
Meet the company behind BetmaiGENERATION & CONNECTION
Resources working together.
Complementary solar
Solar development complements the hydropower programme. The two resources are designed to share a power substation.
12 km · 66 kV
A planned transmission line connects the Betmai powerhouse to the shared step-up substation, with power evacuated into the Transco-CLSG network.
A SHARED CONNECTION
Hydro and solar. One route to the grid.
The planned 12 km, 66 kV transmission connection links the Betmai powerhouse to the shared hydro–solar step-up substation. Both resources evacuate power through this substation into the Transco-CLSG network.
- 01Betmai powerhouseRun-of-river hydropower
- 0212 km · 66 kVTransmission connection
- 03Shared substationHydro and solar connection
- 04Transco-CLSGGrid network
From the landscape
A closer look at the landscape.
Explore the river and its surroundings.
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DEVELOPING WITH RESPONSIBILITY
Energy and its
wider impact.
River systems, biodiversity and local livelihoods shape the way renewable energy is developed. Environmental work and community participation sit alongside engineering and investment in SERL’s approach.