Construction of longest transmission line in East and Central Africa nears completion

Construction of longest transmission line in East and Central Africa nears completion

Construction of the longest longest transmission line in East and Central Africa nears completion. The line links Kenya to its northern Ethiopia for regional electricity trade.

The 1,045km line interconnect at the Moyale common border and has the capacity to carry 2,000 MW of electricity in either direction, the capacity being higher than Kenya’s current maximum consumption (peak demand) of about 1,900 MW.

Also Read:Kenya to construct a new geothermal transmission line

Kenya-Ethiopia interconnector line

Construction is complete on the Ethiopia’s side, being shorter, while Kenya’s side is over 90% complete and is expected to go live early next year. On Kenya’s side, it’s being built by the Kenya Electricity Transmission Company (Ketraco).

African Development bank (AfDB), French Development Bank (AFD), World Bank and government of Kenya have funded the project at a cost of US $620m. It’s expected to be completed in April 2020.

The project is being developed by a consortium of contractors comprising Germany-based Siemens for the converter station, KEC International of India, Larsen and Toubro of India and Kalpataru Power Transmission of India. China Electric Power Equipment and Technology Company is overseeing the line construction.

Kenya’s first direct current (DC) line

Kenya-Ethiopia interconnector line, also known as the Eastern Electricity Highway, is Kenya’s first direct current (DC) line having 500kV high-voltage direct current (HVDC). All the other transmission and distribution lines in the country are alternating current (AC) wires.

Direct current transmission is best suited to cover long distance electricity transportation, over 600km on land, in line with global best practices. Through this line, power will be wheeled to the South African Power Pool and this can be on both sides.

Currently, the 400kV Loiyangalani-Suswa 435km line built last year and connecting Turkana wind farm to the national grid holds the top spot in the region in terms of capacity, along with the 400kV Mombasa-Nairobi 428km line completed in 2017.

The Kenya-Ethiopia project will enable cross-border trade of reliable and affordable energy from the East African region and eventually to the Southern Africa Power Pool (SAPP), through Tanzania.

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