The Verbois Dam opened in 1944 and is the largest source of electrical energy production in Geneva.
The plant includes the famous Verbois dam and its four channels each with two sluice gates, in addition to the works with its four Kaplan turbines and two lateral dykes.
The development employs the waterway to the best advantage, and changes to the flow of the Rhone at the Seujet dam allow the Verbois works to product electricity at times of high consumption.
The dam is 410m wide and 20m high and features the largest fish ladder in Switzerland at 350m long containing 107 pools. The dam also produces up to 466GWh per year, equivalent to 15% of electricity consumption in the canton of Geneva.
Guided tours last approximately 1hr30mins.