Olkaria II Geothermal Energy Project, Kenya
Green Energy

Olkaria II Geothermal Energy Project, Kenya




 Olkaria II
Sinclair Knight Merz was awarded an overall consultancy contract in 1998 as owner’s engineer and project manager for the Olkaria II Geothermal Power Project in Kenya. This involved engineering design and supervision support on five major contracts - power plant, steam field engineering, site civil works, switchyards and transmission lines. 
The Olkaria geothermal field is located in Kenya’s Rift Valley about 120 kilometres from Nairobi.  The first power plant, Olkaria I, was commissioned between 1981 and 1985, with3 x 15MW machines.  Planning for Olkaria II’s 2 x 35MW generators commenced about the same time, with most of the concept design carried out by the early 1990's, and all the wells drilled by 1993.
In the initial phase of the Project, design reviews recommended several important technical changes, with the cost being justified by use of through-life value analysis techniques. These included changing the turbine hall structure from concrete to steel, and the incorporation of more modern building materials.  Plant changes included the use of modern canned pumps in lieu of barometric sealing pits, and a change to the type of cooling tower, with this particular item resulting in a significant cost saving to the Client in terms of both the capital cost of the cooling tower and the civil works associated with a smaller footprint.
During the Review of the Steamfield, SKM identified a number of other design changes that added value to the Project.  These included:
  • Revisions to the steamfield pressure control system and the addition of brine loop seals to avoid brine flashing and carry-over of solids to the turbine 
  • Revision of the well-pad layout to provide adequate access for separation plant operation, along with space for maintenance and well work-overs.
For further information, contact: Sinclair Knight Merz




- World's Largest Geothermal Plant Opens In Kenya As Global Development Steams Ahead
By Tildy BayarKenya’s 280 MW Olkaria geothermal power plant, the world’s largest, began commercial operation today, with an opening ceremony held yesterday and attended by government officials. The plant (pictured) will provide almost 20...

- Kenya To Generate Over Half Of Its Electricity Through Solar Power By 2016
Masinga hydroelectric power plant. Kenya gets most of its power from hydroelectricity, but there are hopes solar will contribute more. Photograph: Tony Karumba/AFP/Getty ImagesKenya has identified nine sites to build solar power plants...

- Kenya To Concession Geothermal Power Generation
A geothermal Plant at Ol Karia in kenya KENYA, AFRICA'S geothermal power giant, has changed its business plan in order to speed up geothermal power generation. The new plan involved separating the drilling function from the generation function....

- Kenya Turns To Geothermal And Wind Power In A Big Way
A Geothermal Plant KENYA IS FAST WEANING itself of dependence from hydro-generated electricity to other sources of renewable sources of energy such as wind and geothermal. The shift, which has been in the making for a long time has picked up pace...

- Geothermal Production In Kenya
This post was originally published on ecomagination.com and has been republished with permission.“GDC Strikes Steam in Menengai,” exclaims the cover of this spring’s issue of Steam, the magazine of Kenya’s Geothermal Development...



Green Energy








.