Technical Tour

France’s No. 1 producer of exclusively renewable energy (hydroelectricity, solar and wind energy), CNR has built and now operates 19 hydroelectricity developments on the Rhône river with three inter-related missions: production, navigation, and irrigation and other agricultural uses. Two Technical tours will be held on the Rhone valley on Saturday, September 8, 2018.
Delegates are kindly asked to meet at least 15 minutes before the departure time. Tours will depart promptly at the stated times.
All tours include lunch and refreshments.

TT1: Dam Hydropower plant of Génissiat and Belley’s development in the upstream of Lyon

Place of departure: Palais des congrès

Time schedule:

  • Departure time: 8h30
  • 8h30 – 10h00 : Lyon to Génissiat (by bus)
  • 10h00-12h00 : Dam Génissiat visit
  • 12h00-12h30 : Génissiat to Chanaz (by bus)
  • 12h30-13h45 : Savière Canal (by boat) and tray meal
  • 13h45-15h15 : Brens Hydropower plant and locks visit
  • 15h15-17h00 : Brens to Saint-Exupéry airport
  • 17h00-17h45 : Saint-Exupéry airport to Lyon

The first part of this tour takes you to the emblematic Dam-Hydropower plant of Génissiat, the unmissable stopping point in the landscape of the upper Rhone. Génissiat is located downstream of the Franco-Swiss border. It is the first dam developed by CNR on the Rhône valley. Its construction started in 1936 and after an interruption of several years during the 2nd world war, it was Commissioning in 1948. Reinforced concrete gravity dam, total height of 72.7 m above natural terrain and length of the cap of 140 m, 6 Francis groups, 3 flood evacuation devices (Bottom gate, mid height gate and Surface spillway). With his 420 MW Installed Power and 1.78 billion kWh Average annual production, the hydropower plant of Génissiat has remained the most important European one for many decades.
After this visit, a boat tour will take you through the Savières canal between Lake Bourget and Rhône river.
The visit continues with the « run of the river » multipurpose development of Belley. Put into service in 1982, it belongs to the latest generation of structures built by CNR. It comprises two main structures: a dam at Lavours, and a hydroelectric plant at Brens. Recently, locks, a marina, a small hydroelectric plant have been added to the existing structures.

The return is expected around 17:00 at Lyon Saint-Exupéry airport, and 17:45 in Lyon.

Dam of Génissiat – surface spillway

Dam of Génissiat – surface spillway

Power plant of Génissiat

Power plant of Génissiat

Power plant and lock of Brens

Power plant and lock of Brens

Lavours dam and small power plant

Lavours dam and small power plant

Le Bourget : view of lake and Rhône River

Le Bourget : view of lake and Rhône River

Channel of Savières

Channel of Savières

 

TT2: Hydropower plant of Bourg les Valence and ecological restoration works of the Old-Rhone of Cornas in the south of Lyon

Place of departure: Station de métro de Gerland

Time schedule:

  • Departure time: 8h30
  • 8h30 – 10h00 : Lyon to hydropower plant of Bourg les Valence (by bus)
  • 10h00-12h00 : Lock and Hydropower plant visit
  • 12h00-12h30 : Bourg les Valence to Roche de Glun (by bus)
  • 12h30-13h45 : Meal in restaurant
  • 13h45-15h30 : Visit of Roche de Glun dam and the ecological restoration works of the Old- Rhone of Cornas
  • 15h30-16h30 : visit of a wine cellar in Cornas
  • 16h30-18h00 : Cornas to Lyon

The hydroelectric development of Bourg les Valence was commissioned in 1968. It includes a Hydropower plant (6 Kaplan groups, 180 MW Power installed – Average annual deliverability 1.1 billion kWh) and a lock at Bourg les Valence and a dam at La Roche de Glun. It also has the particularity of receiving Isère river in its diversion channel. An additional structure allows the management of flood flows and sediments.
The old riverbed (sections of Rhone river bypassed by diversion canals) is the subject of major hydraulic and environmental restoration work at Cornas.
The technical tour ends with the visit of a wine cellar of the Rhone valley in Cornas.

Hydropower plant and lock of Bourg Lès Valence

Hydropower plant and lock of Bourg Lès Valence

Restored Rhône secondary channels

Restored Rhône secondary channels

Vineyards along Rhône River

Vineyards along Rhône River