[The Conversation Africa] New research has found that several countries could meet all their energy needs from solar panel systems floating on lakes. Climate, water and energy environmental scientists R. Iestyn Woolway and Alona Armstrong analysed how much energy could be produced by floating solar panels on just 10% of the water surface of one million bodies of water globally. They found that Ethiopia and Rwanda could generate more energy than their current national energy need from the floating energy systems alone.