Kenya Electricity Transmission Company (KETRACO) has successfully relocated 80 Megawatts of electricity from the Nairobi North substation to the Kimuka station.

This initiative aims to bolster power supply stability and mitigate outages attributed to excessive load on the Suswa-North lines.

The energisation of Kimuka will alleviate strain on the existing 220kV Suswa-North lines and 220/66kV transformers at the Nairobi North Substation by diverting a load of approximately 80MW to the Kimuka station.

This diversion is expected to decrease the risk of system instability and enhance the security of power evacuation from renewable sources such as geothermal, wind, and hydro imports from Suswa to Nairobi.

John Mativo, managing director of KETRACO, emphasised the significance of this initiative in advancing the Bottom Up Economic Transformation Agenda (BETA) by enhancing power accessibility and bolstering system efficiency and reliability.

He highlighted the positive socio-economic impacts, particularly in areas like Magadi, Ngong, Karen, and their environs.

The Kimuka substation is an integral component of the Nairobi Ring and Associated Substations project, envisioned to provide an alternative power supply route to the Nairobi Metropolitan region while relieving overloaded substations.

The project encompasses the construction of a 103km 400kV double circuit line from Suswa substation to Isinya substation, along with the establishment of two 220kV substations at Suswa and Isinya, and 220/66kV substations at Kimuka, Athi River, and Komarock.

Financed by the Agence Française de Développement (AFD), the European Investment Bank (EIB), and the Government of Kenya (GoK) to the tune of Ksh16.9 billion, the Nairobi Ring Associated Substations infrastructure project aligns with Kenya’s Vision 2030 flagship initiatives within the energy sector.

With an evacuating capacity of 1,700MW, the project is part of broader system strengthening efforts aimed at enhancing electrical energy transfer capacity, addressing issues such as low voltages, high transmission losses, supply unreliability, and network security challenges.

Notably, the project’s significance extends beyond local boundaries. The Suswa-Isinya transmission line will interconnect the grid from the Coast to the rest of Kenya and neighboring countries like Tanzania, Uganda, and Ethiopia, ensuring a firm and stable interconnector from Ethiopia-Kenya-Tanzania.

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