Climate change Hydro power Previous Next Power in the Alps. Water is a key source of energy in Switzerland (Keystone) Keystone The Albigna dam above Bergell in the canton of Graubünden (Keystone) Keystone The 282-metre tall Grande Dixence dam wall in canton Valais is the highest in the world (Keystone) Keystone Water is converted into electricity in the turbine hall of the Loebbia hydro plant in canton Graubünden (Keystone) Keystone A transformer station in canton Bern (Keystone) Keystone Overhead power lines transfer electricity to the end-user (Keystone) Keystone End station. Christmas lights from the city of Geneva sparkle on Lake Geneva (Keystone) Keystone Picture 1 Picture 2 Picture 3 Picture 4 Picture 5 Picture 6 Picture 7 Turning water into watts This content was published on May 11, 2006 - 09:50 You can find an overview of ongoing debates with our journalists here. Please join us! If you want to start a conversation about a topic raised in this article or want to report factual errors, email us at firstname.lastname@example.org.