Table 1 Database for the biogas plant register

Lower Saxony Digital Landscape Model (DLM) [18]

Vector data of the earth’s surface for Lower Saxony from the Official Topographic Cartographic Information System (ATKIS). Four-year update cycle and positional accuracy of ± 3 m [26]

Lower Saxony Energy Atlas (Energy Atlas) [19]

Vector data of renewable energy plants in Lower Saxony. There has been no update since the 2019 spatial localisation of the plants

German core energy market data register (MaStR) [11]

Tabular data on the German electricity and gas market, such as core data on electricity- and gas-generating plants (Appendix MaStRV [27]). The data set is constantly updated, registration is completed by market players (§ 5 MaStRV [27]), and spatial allocation via coordinates is possible

TenneT EEG plant core and EEG payment transaction data [20, 21]

Tabular data of the TenneT EEG plant core and EEG payment transaction data (Pursuant to § 2.3 MaStRV, electricity generation plants classified as an installation pursuant to § 3.1 EEG) for the area of TenneT for 2022

OpenStreetMap (OSM) [22]

Vector data with worldwide data on the earth's surface, including the location of biogas plants. Constantly updated by members of the OSM community [28]