Cold Storage for Energy

Cryogenic energy storage is another contender in the race to find a way to store intermittent, renewable energy. Yasmin Ali at BBC News tells of a demonstration plant in Manchester, England, for his concept.

The cryogenic energy facility stores power from renewables or off-peak generation by chilling air into liquid form. When the liquid air warms up it expands and can drive a turbine to make electricity.
The 5MW plant near Manchester can power up to 5,000 homes for around three hours.

Link: Cryogenic storage offers hope for renewable energy