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Biogenic raw materials such as manure are stored in the pre-pit for further processing at the biogas plant for further processing at the biogas plant of BIEAG Biomasse Energie AG in Hueneberg, in the canton of Zug, Switzerland, on May 2, 2017. In the biogas plant Huenenberg, biomass from the region is fermented in two fermenters. Biogenic wastes from the region are used to produce electricity and heat. (KEYSTONE/Gaetan Bally) Biogene Rohstoffe wie Mist lagern zur Weiterverarbeitung in der Vorgrube der Biogas-Anlage der BIEAG Biomasse Energie AG in Hueneberg, Kanton Zug, am 2. Mai 2017. In der Biogas-Anlage Huenenberg wird Biomasse aus der Region in zwei Fermentern vergaert. Aus biogenen Abfaellen der Region wird Strom und Waerme nachhaltig produziert. (KEYSTONE/Gaetan Bally)