By ESS news
Finnish cleantech startup TheStorage says its thermal storage technology could reduce industrial energy costs by as much as 70% and reduce CO2 emissions by as much as 90%. The system converts sustainable electricity into heat, stores it in sand and supplies it on demand for industrial heating.
The concept originated in Finland in 2023 and engineering work started in 2024. In January 2026, TheStorage installed its first industrial-scale pilot in a brewery, putting the technology to the test in a realistic environment. There it produces fossil-free steam for the brewery’s production lines.
“Producing steam without fossil fuels is a big step towards carbon-neutral production,” says Vesa Peltola, production director of the brewery.
TheStorage’s technology captures electricity when it is abundant and cheap, converts it into high-temperature heat and stores it in sand. This stored heat can later be used in industrial processes, regardless of the real-time availability of electricity.
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