That is the title of an article from The Economist. It starts with "trying to solve one of renewables knottiest problems. Solar and wind power are intermittent, so green utility firms must store excess energy and release it when no sun shines or wind blows".
At the top of the solution list is water pumped storage. Greenbacks are flowing to this green solution.
But not if many Meaford residents have their say. Think your way through this.
Meaford & Conestogo