The Olkaria I Geothermal Power Station, also known as Olkaria I Geothermal Power Plant is a geothermal power station in Kenya, with an installed capacity of 185 megawatts (248,000 hp). It was the first geothermal power plant in Africa.
The facility is located in the Hell's Gate National Park along with its sister stations, Olkaria II and Olkaria III. This location lies in Olkaria, in Nakuru County, on the eastern edge of the Eastern Rift Valley, approximately 43 kilometres (27 mi), by road, southwest of Naivasha, the nearest large town. Olkaria is approximately 122 kilometres (76 mi), by road, northwest of Nairobi, the capital of Kenya and the largest city in that country.
Olkaria I Geothermal Power Station is one in a series of six geothermal power stations, clustered in the Olkaria area in Nakuru County. Four of the stations Olkaria I, Olkaria II, Olkaria III and Olkaria IV are operational.
The Olkaria I Power Station first started operation in 1981 running one Mitsubishi turbine with a generation capacity of 15MW. In 1982 and 1985, two more turbines identical to the first were commissioned at the facility, bringing the total generation capacity to 45MW.
According to en.wikipedia