Your Battery Obsession Is Obsolete. China Just Built a 40-Story Power Bank Out of Concrete.
China built a 40-story tower that stores wind energy by lifting concrete blocksโa gravity-based system that challenges the dominance of lithium-ion batteries. It’s simple, scalable, and doesn’t require rare minerals. Here’s why this brute physics approach could revolutionize grid storage, turning skyscrapers into literal power banks.