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262 Google Launches CO2 Battery Plants for Long-Duration Storage of Renewable Energy

Slashdot
EditorDavid @ Slashdot · 12/21/2025 20:34 EDT

Google Launches CO2 Battery Plants for Long-Duration Storage of Renewable Energy

In July Google promised to scale the CO2 batteries of "Energy Dome" as a long-duration energy storage solution. Now IEEE Spectrum visits its first plant in Sardinia, where 2,000 tonnes of carbon dioxide power a turbine generating 20 MW over 10 hours — storing "large amounts of excess renewable energy until it's needed..."

"Google likes the concept so much that it plans to rapidly deploy the facilities in all of its key data-center locations in Europe, the United States, and the Asia-Pacific region."


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