By collecting and transmitting information, cookies help us to understand the user behavior of visitors to this website. No personal data is transmitted during this data processing.Learn more?OK DE | FR SEO Main activities Discover multimedia sightseeing Contact PSW Vianden Run-of-river power plants Wind power SEO - energy 3 The Société Électrique de l'Our, or SEO for short, operates the Vianden pumped storage power plant to generate peak electricity. The SEO also operates run-of-river power plants and wind turbines. The Luxembourg state and the German energy supply group RWE Power are the largest shareholders in Société Électrique de l'Our, each with 40.43%. SEO also holds shares in the following companies, all of which are active in the renewable energy sector: Cedecel France SA, Cefralux S.à rl, Soler SA, Wandpark Bënzelt SA, Wandpark Burer Bierg SA, Wandpark Hengischt SA, Wandpark Housen-Pëtschent SA , Kehmen-Heischent SA wall park, Rulljen-Géisdref SA wall park, Windpower SA Here you have the opportunity to learn more about us and our power plants and to discover our diverse, exciting fields of activity. You can also experience all of our activities up close: We are always available for tours. Due to the hygiene measures still in place with regard to Covid-19 and the execution of necessary work in the visitor tunnel, the guided tours will be suspended until the end of the year. The visitor gallery is also closed during this time. Machine 11 sightseeing Home Data protection imprint