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