Energy storage and recovery

Details Energy storage and recovery Energy storage and recovery

F - Mech Eng,Light,Heat,Weapons

03

B

138/24

F03B 17/02 (2006.01) F03B 13/06 (2006.01)

Patent

CA 1260801

K 9715 A B S T R A C T ENERGY STORAGE AND RECOVERY Underground storage of energy, wherein a low-density fluid is pumped from an upper cavern to a lower cavern filled with a high-density fluid by means of an overground pump/turbine apparatus, as result of which high-density fluid is displaced out of the lower cavern to the upper cavern, and wherein subsequently, in order to retrieve the stored energy, the high-density fluid is allowed to return to the lower cavern displacing the low-density fluid to the upper cavern, which displaced low-density fluid drives the overground pump/turbine apparatus.

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