KETRACO's New Substation Boosts Kenya's Coastal Power Supply
The Kenya Electricity Transmission Company (KETRACO) has recently energized the 400-220kV Mariakani Substation, a significant development that promises to revolutionize the power supply along Kenya's coast. This state-of-the-art substation is designed to provide stable and reliable electricity to homes, businesses, and industries in the region, marking a major step forward in addressing the long-standing issue of power instability.
A Gateway to Reliable Power
The Mariakani Substation acts as a critical power gateway, connecting the coastal region to the national transmission grid in Nairobi. By reinforcing the 400kV transmission corridor, KETRACO is ensuring a more stable and consistent electricity supply, which is crucial for fostering industrial growth and attracting new investments. This enhanced connectivity will significantly reduce the region's reliance on expensive diesel generators, a common challenge in the past.
Clean Energy and Regional Integration
This project aligns with Kenya's ambitious clean energy goals and regional power integration objectives. The substation is part of the Nairobi to Mombasa Transmission Line, capable of transmitting over 1000MW of electricity between the two regions. This increased capacity will not only ease the pressure on the coastal power network but also improve the overall system performance, making it more efficient and reliable.
Strengthening the Grid
The Mariakani Substation is a strategic component in strengthening Kenya's national transmission grid and the broader regional interconnected power system. A robust grid is essential to fully realize the benefits of the 500kV Ethiopia-Kenya Interconnector and the 400kV Kenya-Tanzania Interconnector, further enhancing Kenya's energy security and regional cooperation.
Clean Energy Transition
The substation will play a pivotal role in Kenya's journey towards 100% clean energy by 2030. It will facilitate the increased flow of geothermal power from Olkaria, wind power from the Lake Turkana Wind Power Project, and hydropower imports from Ethiopia to the coast. This will lead to cleaner, more reliable, and stable energy, reducing costs and stabilizing the supply, especially during peak evening hours.
Financial Investment and Implementation
The project was made possible through a partnership between the Government of Kenya and the African Development Bank, with a total investment of KES 3 billion. China CAMC Engineering Company Limited was the implementing contractor, supervised by KETRACO engineers. The African Development Bank is also the lead financier for the transmission lines linking Mariakani to Nairobi and Rabai, ensuring a comprehensive approach to the project's success.
Project Milestones
The energization of the Mariakani Substation marks the completion of Phase Two of the Mombasa to Nairobi Transmission Line Project. Phase One, which involved the construction of double-circuit transmission lines from Rabai Substation to Embakasi Substation in Nairobi, has been operational since 2017. Now, with both the 400kV Isinya Substation and the Mariakani Substation operational, the full 400kV Mombasa to Nairobi transmission corridor is fully functional.
Impact and Benefits
The project's completion will deliver increased transmission capacity of over 1000MW to the Coast, reduce technical losses, lower power costs, and create a more reliable and resilient electricity network. This aligns perfectly with Kenya's commitment to a clean energy transition, ensuring a sustainable and prosperous future for the country and its people.
