Green power to the people: Storage will help drive the energy revolution

Most climate action centres on getting rid of carbon dioxide, but Italian start-up Energy Dome wants to put it to use. PHOTO: UNIPER
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LONDON (THE ECONOMIST) - Most climate action centres on getting rid of carbon dioxide (CO2). Energy Dome, an Italian start-up, wants to put it to use.

Its "CO2 batteries" will store the gas under high pressure when electricity is plentiful; when electricity is needed the stored gas will be run through a turbine to generate some. The advantage of using CO2 is that it can take on a dense sort-of-liquid form at room temperature; similar systems using other gases need low temperatures.

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