Lift Energy Storage Systems (LEST) wants to transform skyscrapers into massive gravity batteries, literally. This gravity-based storage system utilizes the structure’s elevators as well as height to store energy. It stores power by lifting wet sand containers or other high-density materials remotely in and out of an elevator with autonomous trailer devices.
LEST would then link two storage sites: one located on the bottom of a tall building (lower storage site) and the other at the top. If successful, this gravity battery system can create additional value for the power grid and the building owner. As storage containers are elevated from a lower floor to the top, potential energy is generated and stored. Speaking of skyscrapers, have you ever seen Top Tower? It’s the skyscraper designed to look like a shipwreck.
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I have always been fascinated with topics involving potential energy, in other words, generating energy with changes in altitude, such as hydropower, pumped-storage, buoyancy, and gravity energy storage. The concept of gravity energy storage has also recently received significant attention in the scientific community and start-ups. The concept of LEST came to me after having spent a considerable amount of time going up and down in a lift since recently moving into an apartment on the 14th floor,” said Julian Hunt, lead author and researcher in the IIASA Sustainable Service Systems Research Group.
