Forces motrices Axpo Hydro Surselva AG (AHS) Via Tumvi Sut 16A, 7162 Tavanasa GR 081 929 25 11 * 081 929 25 11 *
Forces motrices Kraftwerke Vorderrhein AG (KVR) Via Tumvi Sut 16A, 7162 Tavanasa GR 081 929 25 11 * 081 929 25 11 *