Ice Batteries Revolutionize Energy Savings, Cooling Buildings Sustainably Across the US
October 7, 2025
A new technology is making a significant impact by reducing strain on the power grid and minimizing electricity consumption during peak demand times, such as hot summer afternoons.
Ice thermal energy storage systems, commonly called ice batteries, are increasingly being adopted across the United States in settings like hospitals, schools, commercial buildings, and data centers as a sustainable cooling solution.
This technology is especially popular in California, where it helps reduce reliance on fossil fuels by shifting energy load away from natural gas power plants during evening hours.
Ice batteries operate by freezing water overnight during periods of low electricity rates, then thawing the ice to cool water circuits in buildings during peak hours, effectively easing grid demand and lowering electricity use.
Summary based on 7 sources
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Sources

Yahoo News • Oct 7, 2025
Buildings are turning to 'ice batteries' for sustainable air conditioning
Yahoo News • Oct 7, 2025
Buildings are turning to 'ice batteries' for sustainable air conditioning
The Independent • Oct 7, 2025
Buildings are turning to 'ice batteries' for sustainable air conditioning
AP News • Oct 7, 2025
'Ice batteries' offer sustainable air conditioning option | AP News