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Editorial use only .Solar panels being installed on the roof of a domestic house in Fish Hoek, Cape Town, South Africa. South Africa has been facing regular power cuts which has led to a surge in domestic installations of solar power. As a result, the country is now one of the top 10 importers of solar panels in the world. Additionally, South Africa has the second-highest solar radiation potential globally. (KEYSTONE/SCIENCE PHOTO LIBRARY/DR NEIL OVERY)