Gravity battery

Uncommon card · No. 187295

A gravity battery is a type of energy storage device that stores gravitational energy—the potential energy given to an object when it is raised against the force of gravity. In a common application, when renewable energy sources such as wind and solar provide more energy than is immediately required, the excess energy is used to move a mass upward against the force of gravity to generate gravitational potential energy. When customers eventually require more energy than the sources can provide, the mass is lowered to convert the potential energy into electricity using an electric generator. Though solid masses such as concrete blocks can be used, more commonly, pumped-storage hydroelectricity generation involves pumping water to higher elevations and later guiding it through water turbines to generate electricity.

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