The problem is that Nigeria is not having good electricity. Nigeria is a developing nation and we can expect low cost of electricity usage if compared with developed nations, everything produced in the country (not imports, but electricity bill) would be cheaper in a developing nation if compared to a developed nation, that would have been an advantage to run miners in Nigeria but no constant electricity. In Nigeria, most people either have to depend on generator or solar as backup plan and as alternatives. It will not be a surprise if you see Nigeria to be among the first 5 countries that import generator annually.