The deadline for submissions was 9 November.
Afreximbank wants African contractors to win more work.
The 300MW facility broke ground on 6 October.
Schemes worth US$955 million to be delivered.
The Future Of Construction In Sub-Saharan Africa webinar highlighted two main challenges in the region's projects sector.
US$1.9 billion of guarantees were provided for new investments.
Governments in Sub-Saharan Africa see business tourism as an opportunity to grow foreign earnings.
The deadline for registering interest is 8 November.
The plants were developed by Sturdee Energy.
Interview with Hans Olav Kvalvaag, CEO, Release.