ZOLLFRANK SOLAR- UND HAUSTECHNIK GMBH

Since 1998, our company has been active in the renewable energy market. That year, the first energy house with a water-water heat pump was built. In the following period, we primarily focused on heat pumps and wood pellet systems. However, due to high demand in this field, there was a rapid increase in prices. Therefore, we launched our oil mill project in 2006. With the advancement of technology, we also began installing photovoltaic systems starting in 1998. Due to the complexity of our company, we recently established the Zollfrank Group, which consists of Zollfrank Solar & Building Technology GmbH, Zollfrank Environmental Technology, Zollfrank Residential Construction GmbH, and the Oil Mill (Zollfrank GbR).