MBG Mittelständische Beteiligungsgesellschaft Baden-Württemberg invested 1 million EUR in Naturenergie Rotachtal GmbH & Co. KG. The participation capital supports the construction of a biomethane upgrading plant in Baden-Württemberg. The broader project also includes investments in Agri-PV and battery storage. The financing is carried out together with Volksbank Donau-Oberschwaben and Nord/LB, and MBG's participation is described as an important component of the overall financing structure.