In Europe, more heat is wasted during electricity production than is needed to heat all buildings. Therefore, the potential for improvements in the heating sector is immense. By collecting the wasted heat from both industry and electricity production and using smart district heating grids, it is possible to save all of the natural gas currently used for heating buildings in Europe. This would result in not only monetary savings, but also in a consideration CO2 emissions reduction. The project aims to redesign this sector by combining the knowledge of local waste heat conditions and potential savings with an energy system analysis.