Geretsried is a town in the district Bad Tölz-Wolfratshausen, located in Bavaria, Germany. The town is the most populated town in the district, with 23,219 inhabitants as of 31 December 2012. The town is the site of a geothermal energy project using a novel closed-loop system that offers more environmental protection than conventional geothermal technologies. The project is a partnership between Eavor Technologies and Deep Energy Capital to produce sustainable zero carbon energy in Germany.