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