The huge disruption caused by the coronavirus crisis has highlighted how much modern societies rely on electricity. Millions of people are now confined to their homes, resorting to teleworking to do their jobs, e-commerce sites to do their shopping, and streaming video platforms to find entertainmen

Solar panels might seem like they're in direct competition with plants. One is catching sunlight to do photosynthesis, the other wants to take it to push electrons. Surely Highlander rules apply, and there can be only one on a plot of land, right? In reality, it's not a zero-sum game.