Electrical Energy Storage and Retrieval System
OwnerSamuel Thomas Kellyinventor
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Abstract
A system and method to efficiently store and convert erratic wind and solar electrical energy production to a source of reliable standard AC electrical power by means of an electric motor operatively engaged to power a pump. The pump in a sealed communication with a reservoir cavity evacuates air from the cavity to store the generated energy as potential energy in the form of a pressure differential with ambient atmosphere. Regulated air inflow into the evacuated cavity is employed to drive a generator or alternator to produce electric power which is synchronized with grid demand and communicated to the grid.
Claims20
An energy storage system for storing energy from wind, solar or other electrical energy generation sources, comprising:
- a sealed reservoir cavity adapted to maintain a pressure differential with ambient atmosphere exterior to said cavity;
- a pump having an intake port in sealed engagement with said reservoir cavity and having an exhaust port exterior to said cavity;
- electrically powered means to power said pump during an operative state;
- said pump in said operative state causing an evacuation of air from said reservoir cavity through said intake port, thereby creating an increase in said pressure differential;
- means for rotation of an electrical generator or alternator, employing a force of air communicating through an inflow to said reservoir during a generation state;
- and
- said generator or alternator generating electricity during said generation state, whereby electrical power produced during said operative state is stored as potential energy as said pressure differential in said reservoir cavity for an employment to power said generator or alternator to generate an output of said electricity during said generation state.
Dependencies are inferred from the claim text.