We’re wasting too much of the clean energy we generate. Reservoirs and caverns can store excess solar and wind power.
Solar panels and wind turbines give the world bountiful energy—but come with a conundrum. When it’s sunny and windy out, these renewables can produce more electricity than is actually needed at the time. Then when the sun isn’t shining and wind isn’t blowing, they provide little to no electricity when it’s sorely needed.
