Renewable energy overtook coal power to become the largest source of electricity in the world for the first half of 2025. However, many forms of renewable energy have an efficiency problem, with production not matching up to demand. Storing the excess energy with megabatteries could offer a promising way to bridge the gap.
Storing the sun
One of the biggest problems with many renewable power sources is the mismatch between supply and demand. The production rates of energies like solar and wind “fluctuate according to the weather, the time of day and the season,” said OilPrice.com . For example, when the “sun is shining and solar panels are producing the most energy,” it “also happens to be when the lights are switched off and relatively few people are home using appliances.” This