Too much of a good thing Rolf Schulten/Bloomberg via Getty Images
“Germany had so much renewable energy on Sunday that it had to pay people to use electricity.” That was the striking headline on the Quartz news site last week. Excess electricity can overload a grid, so to even things out some big consumers were paid to up their energy use.
Wind and solar provided 22 per cent of Germany’s electricity in 2015. That isn’t typical but it’s not the only place with too much energy at times. In Texas there is now…
