21 January 2021, Baden-Wuerttemberg, Tübingen: Boris Palmer (Bündnis 90 / Die Grünen), Lord Mayor of Tübingen, stands next to a photovoltaic panel during a press event to present a construction project for solar plants. Boris Palmer is holding a permit for the use of the land. Tübingen will soon be home to what the city says will be the city's largest photovoltaic plant. With an output of more than one megawatt, the Lustnau solar park will be able to meet the electricity needs of more than 500 average private households per year. The solar park is scheduled to go into operation in mid-2022. Photo: Bernd Weißbrod/dpa