The expansion is in line with the company’s strategy to reduce electricity losses and enhance the overall power sector economics in the region.
AfDB president Donald Kaberuka said: "By supporting an indigenous power developer (CECA), the Bank is helping create a pool of pan-African investors besides assisting in mobilizing the necessary capital to increase access to energy in Africa."
In next three to five years, the company expects to achieve capitalization of around $500m.
CECA, a wholly-owned unit of Copperbelt Energy (CEC), has identified several investors and plans to close first $150m by third quarter this year.
African power infrastructure developer, CEC Group is currently undertaking operations and projects in Nigeria, Sierra Leone, Namibia and Zambia.