Compressed air energy storage

3

The electricity produced is delivered back into the grid. This system can be sited wherever it is needed

2

When electricity is needed the high- pressure gas is released to turn a turbine

1

Excess or off-peak power is used to compress air into an undergound cavern or an over- ground system

2

3

1

Underground

cavern

Compression

Turbine

Compressed

air

Underground

cavern

3

2

Compression

Generator

Turbine

Compressed

air

1

2

When electricity is needed the high-pressure gas is released to turn a turbine

3

The electricity produced is delivered back into the grid. This system can be sited wherever it is needed

1

Excess or off-peak power is used to compress air into an undergound cavern or an above-ground system