[4] From Arusha the line travels in a south-westerly direction for about 325 kilometres (202 mi) to end at Singida.
[1] As far back as 2015, Kenya, Tanzania and Zambia began to explore the amount of electricity that can be moved along high voltage power lines linking the three countries.
[7] A joint Environmental and Social Impact Assessment (ESIA) in both countries was carried out in 2014, funded by the African Development Bank (AfDB).
[1] In October 2017, Ketraco, the Kenyan electricity transportation monopoly awarded the construction contract for a 400kV substation at Isinya and the 96 kilometres (60 mi) 400kV high tension line from Isinya to Namanga, to North China Power Engineering Company Limited (NCPE).
[9] In 2023, the development was met with construction delays related to compensation of landowners and lack of sufficient capital to do so.