To many people, the term “cryogenic” conjures up images of Walt Disney’s frozen corpse or Woody Allen’s “Sleeper.”  I’m guessing it doesn’t make you think about energy storage, but unlike the aforementioned applications, cryogenic energy storage is technically feasible with current technology, as was recently demonstrated by Highview Power Storage. Highview has a prototype cryogenic energy storage plant that’s been running for over a year. The facility has a 300 kW maximum output and a 2.5 MWh storage capacity. That’s enough to power sixteen houses for eight hours. The company hopes to build a full-scale plant that can output 10 MW with 40 MWh of grid-level storage, which would power up to 250 houses for eight hours.

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