Kenya's electricity reserve margin, the extra power generation capacity available above peak demand, was wiped out in the year to June 2026. This development has heightened the risks of widespread power rationing and blackouts in the country. According to Kenya Power, the electricity reserve margin shrunk to negative 1.5% in the 12 months to June. This is significantly low compared to the recommended range of 20-35%. The situation puts Kenya on the edge of a potential crisis in the event of major disruptions at hydro plants.
The shrinking reserve margin is attributed to the lack of fresh electricity generation on the national grid despite fast-growing consumption. Kenya Power Managing Director Joseph Siror did not respond to a request for an update on the matter. The utility has attributed the dismal reserves to growing energy demand, which increased by 8.6% from 2,316 MW to 2,514 MW. This tightened the system's reserve margin to approximately negative 1.5%. The margin is below the level required to absorb an unexpected plant outage, hydrology shock, or demand surge.
Kenya Power has on several occasions been forced to ration supplies to some regions when demand peaks in the evening. This scenario could worsen if there are no significant increments in the reserve margins. Dr. Siror recently confirmed that there are many instances when the company has been forced to load-shed the country when wind generation is low. This is because other generation sources without wind cannot serve the peak demand. The company has been barred from signing new Power Purchase Agreements (PPAs) with the government since 2018.
The freeze on new PPAs was lifted in December 2024, but Kenya Power is yet to ink any new agreements, further derailing efforts to boost local generation of electricity. Local generation of electricity rose 6% to 13,779.15 GWh in the year to June 2026 compared to 13,021.49 GWh a year earlier. However, Kenya Power was forced to import more electricity to meet the rising demand and avert outages. The company has stepped up electricity imports from Ethiopia and Uganda to help boost supplies and meet rising consumption.
Ethiopia has become a significant source of electricity for Kenya, with a share of 9.88% last year. The Grand Ethiopian Renaissance Dam has more than doubled Ethiopia's installed electricity generation capacity over the past seven years, from 4,462MW to 9,752MW. Cheap hydro power from Ethiopia has helped Kenya meet fast-growing demand without burdening consumers with steep bills. Kenya Power currently has a 20-year PPA with the Ethiopian Electric Power (EEP), signed in 2022, allowing the supply of 200MW of electricity.
Kenya Power will take on an extra 200 MW of power in December 2026 under a PPA with Ethiopia to plug a supply gap. The company will, from December 2026, tap a total of 400MW of electricity under the PPA with EEP. Under the deal, Kenya will take up 400MW at peak times but cut uptake to 150MW during off-peak times. The increased power shipments have made Ethiopia the third-biggest source of electricity to Kenya Power.
The situation remains uncertain, with Kenya Power's current reserve margin and plans to address the shortage unclear. The company has not revealed the reserve margins for the year ended June 2025. Whether the situation has changed between June 2026 and now is also unclear. The country's delicate energy balancing act is under scrutiny as it faces potential electricity rationing and blackouts.
Key points
- Kenya's electricity reserve margin has shrunk to negative 1.5%, heightening risks of power rationing and blackouts.
- The shrinking reserve margin is attributed to the lack of fresh electricity generation on the national grid despite fast-growing consumption.
- Ethiopia has become a significant source of electricity for Kenya, with a share of 9.88% last year.
