World’s largest thermal energy storage unit inaugurated by Kyoto Group at KALL Ingredients in Hungary
Tiszapüspöki, Hungary / Oslo, Norway, 9 October 2025 – Kyoto Group today inaugurated its second European Heatcube, the world’s largest industrial thermal energy storage system, at KALL Ingredients corn processing facility in Tiszapüspöki, Hungary, marking a major step in industrial decarbonization.The 56 MWh Heatcube will provide more than 30 GWh of clean process heat annually, replacing natural gas and reducing up to 8,000 tons of CO₂ emissions annually.
“This is a huge step forward for Kyoto Group and for clean low-cost industrial heat. Through our Heat-as-a-Service model, we