Tana power station is in Murang’a south district, and is situated 83km from Nairobi on the Nairobi – Nyeri road.
As part of its capacity expansion to meet the rising power demand, KenGen has upgraded the station’s generation capacity from 14.4 installed in early 1930’s and 1950’s to the current 20 MW by constructing a new power station with a capacity of 20 MW.
The redevelopment contract was awarded in June 2007 to Farab Company of Iran to install four generator units and associated 11/ 66Kv Substation. Under the same contract a 66/33 Kv 23 MVA Transformer was installed in the 11/ 33 kv substation to boast supply to Mt. Kenya region.