Green electricity from the Festungsberg

Since 2006, the water from the Alm canal has been used again to generate energy. The headrace tunnel in the Festungsberg (fortress mountain) can probably be considered as the world's oldest. It dates from the middle of the 12th century. This is done using an overshot water wheel, which delivers an electrical output of approx. 11 kW (15 hp). The first water wheel had become obsolete after 12 years and was replaced by an even more robust one at the end of 2018. (See video and SN from December 18th, 2006.) The electricity generated is used for the company's own needs and mostly fed into the public grid.

More detailed information can be found in articles in the journal "Kleinwasserkraft": show*)
and "Wassertriebwerk"  respectively: show

*) Contact information there is no longer up-to-date. Please use these.

Translation of the Latin inscription in the courtyard of the bakery:
These waters, which operated a mill for 8 centuries, also spread light: That ensured
Willibald and Petrus, abbots of Saint Peter, anno domini 1924
Annotation: The turbine mentioned here was in operation until 1967.