Since 1947, Wuppermann Metalltechnik GmbH has specialized in the production and processing of steel tubes, profiles, and sheets with the tightest tolerances, supplying industries such as mechanical engineering and furniture manufacturing throughout Europe. Tube production, featuring in-house toolmaking, welding, and laser cutting systems, is correspondingly energy-intensive. A PV system with 610.71 kWp is installed at the Altmünster site.