Installed capacity: 2 x 72.5MW
1 x 80.25MW
Year of commissioning: 1978, units 1 & 2
1999 unit 3
Turbine manufacturer: VOITH
Generator manufacturer: SIEMENS
Generator voltage: 15kV
This is the biggest hydro power station in East Africa in terms of installed capacity. Two vertical Francis turbines drive generators rated at 85MVA each at a net head of 135m. The power produced is transmitted to Kamburu 132kV substation, via two 132kV circuits and the station is remotely controlled from Kamburu. The third unit produces 80MW at 15kV that is stepped up to 220kV and is fed into the national grid at the Kamburu 220kV substation. The water is then passed on to Kindaruma, the oldest power station in the complex via an underground 4.7km long tailrace tunnel.