4 ms·

Certainly there are >1GWh thermal storage systems. I'm not sure if any are set up to generate electricity though.

• Manuel_D 4y ago
  The only deployed thermal storage systems are in solar thermal arrays. Those have costs that aren't not competitive with nuclear, and they're still subject to seasonal output variability due to weather and Earth's inclination.
  • zardo 4y ago
    And district heating systems. Where a 1-2GWh thermal accumulator will be used.
    • Manuel_D 4y ago
      District heating systems distribute heat, usually scavenged from a power plant. They don't store heat really - they do in a pedantic sense in that heat is "stored" in the distribution pipelines, but not in the sense of a battery. And they don't transfer heat at gradients large enough to generate electricity effectively.
      • zardo 4y ago
        They store heat in the sense that one of the components is a giant thermal accumulator.