This project is an entry for the 2022 HackADay Prize. It aims to provide a method for solar power generation and storage without dependence on advanced technologies such as solar cells and batteries. The objective is both for low initial cost, and for long-term maintainability without reliance on the repeat-purchase of new components such as batteries due to reduced capacity with age. Trough style solar concentrators are used to generate steam, the pressure of which is harnessed to store energy in the form of water pressure, to drive a hydroelectric generator.
  • Robert7301201@slrpnk.netEnglish
    1·
    1 year ago

    I’m struggling to understand how this works.

    Overnight the energy storage system continues to press against the water in the chamber even after all the steam has condensed, this provides water pressure to continue powering a hydroelectric generator overnight.

    How can this be? Heat and pressure are proportional in a gas. If the steam is condensing, it’s losing energy before it can work the turbine.

    What’s the advantage of using water for the turbine instead of steam?

    Is this basically a compressed-air energy storage system that’s using heat instead of an electric compressor?

    • poVoq@slrpnk.netOPMEnglish
      2·
      1 year ago

      I think so, although they also mention springs as another form of energy storage.

      • Robert7301201@slrpnk.netEnglish
        1·
        1 year ago

        Woops, I assumed you were the author without even looking. I should probably direct my questions to the comments of the linked article…