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Grid-Scale Bubble Batteries Will Soon Be Everywhere (spectrum.ieee.org)
submitted 10 months ago by to c/technology@lemmy.world
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"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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[–] 4 points 10 months ago* (6 children)

deal with the fact that we’ll have power outages during sleeping hours.

let me guess, you live somewhere winter doesn't exist.

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  • [–] -4 points 10 months ago (4 children)

    couldn't be more wrong, also we have this thing called insulation and water tanks. we already use water loop radiators here, there's nothing stopping us from preheating the water to last us through the night. also, wear more layers instead of being a wussy

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  • [–] 2 points 10 months ago* (last edited 10 months ago)

    This is not even close to being a general solution. Lots of places do not have water loop radiators and it is not an easy retrofit at all. Lots of people cannot even afford additional insulation for their domicile. Telling the average person "don't be a wuss" is not a viable strategy to get them on board with supporting green energy.

    Also heat pumps are the most efficient form of heating we have. They work best at a constant low/mid level, not completely shutting off for half a day and having to work extra hard to catch up in the morning.

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  • [–] 1 point 10 months ago (2 children)

    Unless I'm mistaken, hydronic systems like those USUALLY require a pump to circulate the water.

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  • [–] -1 points 10 months ago (1 child)

    that is correct and that would unfortunately be a problem if we expect everyone to own a boiler instead of building neighborhood thermal battery/central heating systems. a lot of post-soviet countries had perfectly functioning stations for doing exactly that, but they were torn down during neoliberal reforms instead of converting them to modern standards

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