South Africa is overlooking solar technology that can keep generating electricity after sunset

South Africa’s coal-fired power stations are retiring. The country must replace a huge amount of electricity over the next two decades. Currently, coal still supplies 74% of the country’s power. But the government’s national energy plan has largely overlooked one technology South Africa is particularly suited to build: concentrating solar power. There are two main ways of generating electricity from the sun. Photovoltaic (rooftop) solar panels convert sunlight directly into electricity. Big…