Five cities emerged victorious from the BMBF competition "Energy Efficient City" and are putting their innovative concepts into practice in the years 2011-2017. IZT was part of the accompanying research and was responsible for the survey of citizens of these cities in 2016/2017, as well as a survey among other municipal stakeholders of the competition. The survey asked about previous findings, experiences and further implementation intentions. The results of the survey were intended to contribute to better meeting the climate protection goals in the competition cities.