Effective hydropower in Ethiopia
When completed, the GD3 Hydropower Project will have a total installed generating capacity of 254 MW. Three vertical Francis turbine generators, each having a generating capacity of 84.7 MW, are housed in an underground cavern with the main unit transformers housed in an adjacent cavern. A 500-m long cable tunnel leads to the 230kV/400kV switchyard located above ground.
The concrete faced rockfill dam is 110m high with a crest length of 456m, creating a reservoir volume of 3.2 million m3. The spillway is an open chute type with an ogee weir crest and three radial spillway gates. The mid-level outlet is a 679m long tunnel with a radial gate and a maintenance gate. A 60-m high power intake structure with vertical sliding gate lies at the entrance to the 12.4-km long, 8.1-m diameter, headrace tunnel (10.5km excavated by TBM) which supplies water to the powerhouse through a 188-m deep vertical shaft, steel lined penstock and manifold tunnels. Water returns to the river through the 820m long tailrace tunnel and 480m long open channel.
At a Glance
- Offices
Jose Alvoeiro , Vice President, Energy
The beauty of my job—and the hydropower industry—is that it allows us to solve problems for future generations, all over the world.
James Atkins, Senior Civil Engineer
From Scotland to Ethiopia, our team is delivering great work around the world.
Aklile Gessesse, Ethiopia Operations and Commercial Manager
The projects I work on are improving the lives not only of Ethiopians but for people across the region. We are making a real impact.
Rhiannon Meredith, Senior Dams Engineer
Every day my job is challenging and varied—and has allowed me to travel and see places that people don’t normally get to see.
Jon Troke, Project Engineer
What I really enjoy is the variety of challenges my work brings and the inspirational people that I meet along the way.
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