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    WACHIRA: Progress in electricity generation sign of good things to come

    May 23, 2023 - The Star


      Energy is the engine for production of goods and a key enabler across all economic sectors: agriculture, mining, manufacturing, transportation, commerce, and public administration among others, all other sectors are highly dependent on energy.

      It is also a vital ingredient for socioeconomic development and provision of basic services such as food, health and shelter.

      Over the last two decades, the country has made significant progress in the development of power supply infrastructure, speeding up of electricity connectivity and access to becoming a pacesetter in the region.

      Reaching this level required sustained investments in power generation, transmission distribution and mini-grid projects - all fostered through strategic partnerships with development partners and the public and private sector players.


      From 1963 to 2002, the country heavily relied on and developed power generation from the hydros, namely, the seven forks dam cascades, Turkwel power station, Sondu-Miriu and Gogo, which all generate 2.5MW and will be due for uprating to 8.6MW in the next 24 months.

      This follows a directive by President William Ruto during his visit to Migori county in March this Year.

      In the 90s, the country faced power rationing due to drought, thus resorting to the development of expensive emergency thermal power generation as a mitigation measure. This was mainly the easiest technology to deploy compared to other existing technologies at the time.

      The effects of the above led to the private sector being engaged to bridge the power generation gap, as well as unbundling Kenya Power and Lighting Company to bring Kenya Electricity Generating Company whose core mandate was and is to generate power.

      At the time, the private sector brought in the much-needed capital investment for generation capacity to complement what KenGen was producing.

      Other than the new capacity, the country also needed to diversify energy generation mix and mitigate overdependence on hydropower, which by its very nature is vulnerable to vagaries of weather and climate change.

      During this period, the thermal power plants provided a stop-gap measure. The decision by the government to scale up geothermal exploration was the game changer. This led to the creation of another power sector, Geothermal Development Company, whose sole mandate is to support the de-risking of geothermal fields and drilling steam production wells.


      Gradual expansion of power generation over the years has grown the total installed capacity to 3,322MW, compared to 1,048MW in 2000.

      For the areas not connected to the national grid, the government is working with development partners to install off-grid mini-grids to serve them.

      Below is the aggregate figures of installed capacity and supporting technology:

      An overview of thermal power

      KenGen owns and operates three thermal power plants: Kipevu diesel power I producing 73.5MW, Kipevu diesel power III (120MW) and Muhoroni gas turbines (60.0MW).

      Other Independent Power Producers are Iberafrica, which produces 52.5MW, Rabai Power (90MW), Thika Power (87MW), Gulf Power (80.3MW) and Triumph Power (83MW). The Rabai power at the Coast, Thika Power in the Mt Kenya region and Muhoroni GT in the Western region are mainly operated to ensure there is power and voltage stability.

      The Kenya Kwanza government aims to decommission the Muhoroni GT plant when either Narok-Bomet, Sondu-Awendo or Rongai-Keringet-Chemosit lines are completed.

      Two thermal plants have already been retired which are Iberafrica providing 56.5MW (retired in 2019) and Tsavo providing 74MW (retired in January 2023). The Kipevu I diesel power is scheduled for decommissioning in June this year

      Light at the end of the tunnel

      We have a strategy premised around improving our transmission network. Currently, some critical transmission lines and substations are either under construction or at an advanced stage to start construction.

      Their completion will ensure we evacuate geothermal power from Olkaria to load centres at the Coast and Western regions, hence reducing the use of thermal power. This will result to a drop in the cost of power.

      The Nairobi metropolis of Thika, Murang'a, Juja, Ruiru, Matuu, Tala, Machakos and their environs has seen increased power demand. These areas are supplied from the seven forks dam.

      However, with the recent drought situation, we experienced low water levels in Tana River. This caused power instability in the cited areas and the government was forced to utilise the Thika thermal plant to fill the demand gap.

      Plans are also underway to build a 400kV line from Gilgil-Thika-Malaa-Konza with accompanying substations to ensure the area can enjoy geothermal power from Olkaria and warrant redundancy in power stability.

      Commitment to deliver

      Geothermal is now the leading source of electricity in Kenya as it provides an average of 44 per cent of the energy generated annually.

      Over the last eight years, thermal power plants are averaging providing seven to 10 per cent of energy. The completion of some transmission lines and substations, especially at the Coast, will further reduce the use of thermal plants leaving them for deployment during the peak time as initially envisioned.

      Substantial increase in generation capacity from both KenGen and the IPPs in the last decade has greatly supported the diversification of the country's energy generation mix.

      The country experienced the worst drought in 50 years, with the failure of rains in the last three consecutive years. During this period, all supportive measures were applied to keep the lights on and no emergency power was procured. Investment in other renewable energy sources - mainly geothermal, solar and wind contributed to the stability of the country's energy mix and no severe power shortages and load-shedding was reported.

      The use of solar and wind, though intermittent, enabled gradual conservation of water in the reservoirs and, therefore, stretched out the period of usage. Two major wind power plants also complemented the peaking capacity from thermal and hydro though a lot more remains to be done to enhance power supply security in the country.

      As is widely cited, energy acquired but not supplied is more expensive. Attaining high levels of energy security is realised through continual investments, providing for redundancies and enhancement of service delivery.

      The sector will continue to play its rightful role in social economic development by providing affordable energy to all Kenyans. The government identifies energy as a key enabler in the realisation of the Bottom-up Economic Transformation Agenda. This is also aligned to the Vision 2030, which identifies energy as a key foundation for national transformation.


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