Source data
Geothermal project milestones and national electricity generation
Sources checked
- June 1981Olkaria I unit 1. Commissioned, 15 MW.
- November 1982Olkaria I unit 2. Commissioned, 15 MW.
- March 1985Olkaria I unit 3. Commissioned, 15 MW.
- 2003Olkaria II first two units. Commissioned, 70 MW.
- May 2010Olkaria II third unit. Construction completed, 35 MW.
- December 2014Olkaria IV. Commissioned, 140 MW.
Show 6 more dates
- February 2015Olkaria I units 4 and 5. Commissioned, 140 MW.
- July 2022Olkaria V. Officially commissioned, 172 MW.
- July 2022Olkaria I additional unit 6. Officially commissioned, 86 MW.
- December 2023Globeleq Menengai. Financial close, 35 MW.
- 2025/26Kaishan Menengai. Grid addition recorded by EPRA, 35 MW.
- 2025/26Globeleq Menengai. Grid addition recorded by EPRA, 35 MW.
Capacity entries identify the unit or project associated with each dated event.
Geothermal project milestones and national electricity generation
The timeline uses commissioning, construction completion, financial close and regulator-reported grid additions as labeled. A capacity may appear at more than one milestone for a project. It should be counted only once. National generation is measured over Kenyan financial years to June.
| Source | |||||
|---|---|---|---|---|---|
| June 1981 | Olkaria I unit 1 | Commissioned | 15 | — | Source 2 |
| November 1982 | Olkaria I unit 2 | Commissioned | 15 | — | Source 2 |
| March 1985 | Olkaria I unit 3 | Commissioned | 15 | — | Source 2 |
| 2003 | Olkaria II first two units | Commissioned | 70 | — | Source 2 |
| May 2010 | Olkaria II third unit | Construction completed | 35 | — | Source 2 |
| December 2014 | Olkaria IV | Commissioned | 140 | — | Source 2 |
| February 2015 | Olkaria I units 4 and 5 | Commissioned | 140 | — | Source 2 |
| July 2022 | Olkaria V | Officially commissioned | 172 | — | Source 2 |
| July 2022 | Olkaria I additional unit 6 | Officially commissioned | 86 | — | Source 2 |
| December 2023 | Globeleq Menengai | Financial close | 35 | — | Source 3 |
| 2025/26 | Kaishan Menengai | Grid addition recorded by EPRA | 35 | — | Source 1 |
| 2025/26 | Globeleq Menengai | Grid addition recorded by EPRA | 35 | — | Source 1 |
| 2021/22 | Kenya | Annual geothermal electricity generation | — | 4,953.15 | Source 1 |
| 2022/23 | Kenya | Annual geothermal electricity generation | — | 6,035 | Source 1 |
| 2023/24 | Kenya | Annual geothermal electricity generation | — | 5,707.71 | Source 1 |
| 2024/25 | Kenya | Annual geothermal electricity generation | — | 5,718.15 | Source 1 |
| 2025/26 | Kenya | Annual geothermal electricity generation | — | 6,420.51 | Source 1 |
| June 2025 | Kenya | Installed geothermal capacity | 943.7 | — | Source 1 |
| June 2026 | Kenya | Installed geothermal capacity | 1,013.7 | — | Source 1 |
| June 2026 | Interconnected system | Installed geothermal capacity | 1,009.98 | — | Source 1 |
| June 2026 | Interconnected system | Effective geothermal capacity | 876.1 | — | Source 1 |
| June 2026 | Captive facilities | Installed geothermal capacity | 3.7 | — | Source 1 |