Magnotherm brings magnetic cooling fridges to REWE stores, using 15% less power
skdh · x · 2026-09-12
German startup Magnotherm has commercialized magnetic refrigeration, which moves heat using metals that heat up in magnetic fields and cool when the field is removed—no refrigerant gas compression needed. The idea dates to the 19th century, but Magnotherm is the first to reach commercial use: supermarket chain REWE will deploy the fridges in 10 stores. The company claims 15% lower electricity use and no harmful chemicals. The tech could in principle also serve air conditioning, though no prototype exists yet.
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