As a solution to the unpredictable nature of renewable energy sources like solar and wind power, gravity batteries are being pitched as an ideal remedy. To further this cause, Swiss startup
The firm's only gravity-based storage system does not rely on land topography or geology and "thus can be built almost anywhere either co-located with solar or wind plants or simply connected to the grid to support dispatchability and grid stability," according to a statement by the firm.
Their original system consisted of a combination such blocks and a tall tower. A surplus of power, owing to sunlight or wind, is utilized to power a mechanical crane to lift the blocks 35 stories into the air. These blocks then stay suspended there until power is needed again. In times of need, these blocks are lowered, pulling on cables that spin turbines, thus producing electricity.
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