On #WorldSnowmanDay—promoting social & environmental actions—we spotlight our #IceBattery at the Institute for #Hydrogen & #EnergyTechnology, developed with Genes Kältetechnik. ☃️ Discover how #SolarEnergy runs #CoolingSystems autonomously, fostering a #Sustainable future—no extra energy needed! Learn more in our Campuls article: https://t1p.de/iarql #wdosm