this post was submitted on 22 Dec 2025
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284
Grid-Scale Bubble Batteries Will Soon Be Everywhere (spectrum.ieee.org)
submitted 2 days ago by kalkulat@lemmy.world to c/technology@lemmy.world
66 comments fedilink hide all child comments
 

"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."

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[–] partial_accumen@lemmy.world 1 points 18 hours ago

yeah, sure thing buddy. the CO2 will be in a closed loop until it won’t. just like Fukushima and Chernobyl were supposed to be closed loop systems, until they weren’t. disasters happen, no matter how much the techbro mindset insists that they’re impossible.

So you concern is the ecological impact should this bubble fail and the entirety of the CO2 is released to the atmosphere as pollution? Did you even read the article? They discuss that.

First, a full on failure would be rare. Then, a full on failure of 100% loss of the closed loop CO2 is equivalent to 15 round trip flights of a jet flying from New York to London. To put it in perspective there about 250+ flights of this length per day from London, with many being much much farther.

So you're comparing the impacts of a once in a lifetime nuclear power plant failure to the impacts of another source 1/16th of something that already happens every in one airport. Your logic is why out of whack on this if this is your concern with the bubble.