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Can gravity batteries[1] be practical for residential use? How would they compare to the other options like lithium and lead batteries? [1] - https://www.bbc.

• Cerium 4y ago
  No, the energy density is poor. Gravitational potential energy depends on mass and height (mass * gravitational acceleration * height = energy in joules). If your whole house went up and down 10 meters it would store just a handful of kWh, maybe 1 to 10 depending on the mass of your house.