Reducing the greenhouse-gas emissions by 40% until 2030- that is what germany comitted to at a european level. That plan clearly won’t be easy to implement. Since that decision was made, scientific researches are working on how to reach the goal. The HEAT, a congress for mobile and storeable heat, took place for the fifth time in the beginning of november. It was hosted by UNITI (Bundesverband mittelständischer Mineralölunternehmen e.v.) and IWO (Institut für Wärme und Oeltechnik).