“…Many firms active in manufacturing, project development, or services, as well as specialized research institutes are located in and around Oldenburg (Fornahl et al, 2012;MacKinnon et al, 2019;Rohe and Mattes, 2021). Accordingly, the legitimacy of the technology is relatively high in the region (Rohe and Chlebna, 2021). An additional bioenergy cluster in the Southern districts is characterized by leading biogas plant manufacturers and high demand from the intensive agricultural sector (Tamásy, 2013;Franz et al, 2018).…”