SYSTEM AND METHOD FOR STORING ENERGY

摘要

A system includes at least one body, a link for suspending the body for movement with gravity from a first elevation position to a sec-ond elevation position, and an electrical energy generator coupled with the body through the link to drive the generator to generate electricity upon movement of the body with gravity from the first to the second elevation position. The at least one body has a mass of at least approximately 100 tonnes; the first and the second elevation positions define a distance there-between of at least approximately 200 meters; and/or the system further in-cludes an operator configured to operate the link to controllably move the at least one body against gravity from the second to the first elevation posi-tion to increase a gravitational potential energy of the at least one body, and to maintain the gravitational potential energy of the at least one body.