Koolen Industries is at it again. In its quest to lead the energy transition, the Hengelo-based clean-energy conglomerate is pouring three million euros into German thermal energy storage specialist Kraftblock. Citing energy storage as a cornerstone in reducing industrial emissions and a shift to renewable energy, Koolen is looking to boost Kraftblock’s nanotechnology-based energy storage system that captures excess heat – an inevitable byproduct of industrial operations – and reuse it as energy for production.