Denmark’s Hyme prepping ‘world’s biggest’ industrial thermal energy storage system

Danish thermal energy storage developer Hyme Energy is seeking European Union funding to help develop what it has described as the “largest industrial thermal [energy] storage system globally.”

The company said, on its website, the 200 MWh site planned in Holstebro, Denmark, would save Danish-Swedish dairy co-operative Arla Foods around €3 million ($3.1 million) per year on its process heat bills while generating extra revenue from providing grid stabilization services to Danish electricity transmission system operator Energinet.

Hyme Energy’s technology works by using clean electricity to heat molten salt to 600 C. The energy stored in the salt is released on demand by pumping the material through a steam generator which heats water into steam, creating heat for industrial processes.

Describing the planned plant, at an Arla milk powder factory, Hyme Energy Chief Commercial Officer Nis Benn said, “This project could be a game-changer for industrial decarbonization. It will show that reducing CO₂ emissions in large-scale industries is not only feasible but also economically attractive. We believe this project will serve as a blueprint for future deployments and we encourage other industry leaders to join the energy transition.”