This Giant Bubble in Sardinia Stores Energy for the Grid. Here's How.
spectrum.ieee.org
Google is betting big on CO2 batteries to power its data centers with clean energy.

"This giant bubble on the island of Sardinia holds 2,000 tonnes of carbon dioxide. But the gas wasn’t captured from factory emissions, nor was it pulled from the air. It came from a gas supplier… “The facility compresses and expands CO2 daily in its closed system, turning a turbine that generates 200 megawatt-hours of electricity, or 20 MW over 10 hours.”

  • Null User Object@lemmy.worldEnglish
    2·
    2 hours ago

    I imagine that the bubble portion is light weight enough, one could put it on the roof of a data center, apartment building, strip mall, etc. That appears to be the piece that takes up the most space.

    Another thought. I wonder if the bubble portion could be oriented vertically, maybe inside a simple enclosure to protect it from wind.