BAFA (Bundesamt für Wirtschaft und Ausfuhrkontrolle) is the abbreviation for the German Federal Office for Economic Affairs and Export Control, which implements measures for the better use of renewable energy sources and energy conservation in the field of energy. European Union directives have long aimed at reducing consumption and preventing energy loss. In this regard, measures for energy efficiency dictate EU members to achieve a broad scope of sustainable energy supply, reduce greenhouse gas emissions, and thereby decrease import costs. When we think of “energy efficiency,” reducing energy consumption comes to mind first. However, it is not only about reducing consumption, but also the source of the energy consumed. The average European can do a favor to themselves and the environment by transitioning from fossil energy sources to electric energy, especially for heating residential buildings.