What do you see when you imagine a zero-carbon future?
Electric buses zipping by? Rolling hills covered with solar panels? Offshore wind farms towering over the sea? If batteries are part of your vision, good thinking. But there’s a promising, if whimsical, piece of the renewable energy puzzle that might be missing from your mental picture: the world of gravity energy storage.
Source: How the humble chairlift could revolutionize renewable energy | Grist