Nigeria’s national electricity grid has collapsed for the second time in a month, the federal ministry of power said on Saturday, leaving the parts of the country it serves, including capital Abuja and Africa’s biggest city Lagos, without power. The power ministry said the outage had occurred overnight. It gave no estimate of when the grid, which serves around 117 million people, would be back in operation. The ministry said in a statement that a “detailed investigation into the immediate and remote causes of the recurring grid failure is ongoing”, as was the process of restoring supply. While power outages in Nigeria, Africa’s biggest economy, are common, a total system collapse is not. Nigeria has installed capacity of 12,500 […]