Solar panels only work when the sun’s out, while wind turbines only work when there’s wind. Without a means to store the energy generated from these devices, they can’t work to produce energy forever. Energy storage is an increasingly large problem with renewable energy, and this is why the said topic is so crucial to talk about.
Check out this company’s idea of storing energy by using stacked concrete blocks.
Visit Popular Mechanics for more details.
(Video Credit: Energy Vault Inc/ YouTube)