Indistinguishable from magic, Future Crunch often says of some technological and scientific advances. And that is definitely how I feel about floating solar power plants. I never knew there were so many of them – and that many more are planned.

Like me, you’ve probably seen pictures of massive arrays of solar panels on land and thought about how much land they are taking up. Indeed, they do – but put them on water, especially on an existing dam, as is happening to an astounding degree, and amazing things happen.