Just watch Crypto Mining In Nigeria video on youtube from oneminers, tehy show all the power plants and some mining parts, the power plants are apparently government owned, but they produce more electricity, than the whole state can use, so they started a project for crypto miners...

Still shilling for a scam eh? Its already been proven that
Oneminers is a scam operation. Most of the pictures they use have nothing to do with their own company. Instead they are either stock photos or taken from elsewhere. At least some of their physical locations don't actually exist, and they make up numbers that sound enticing to suckers.
TL;DR: stay away from Oneminers unless you feel like getting scammed.