Avise power plant
The Avise hydroelectric power plant is a plant of national importance, included in the power grid restart plan in the event of a total blackout. It is capable of feeding power into the 220,000 V grid without the use of external power sources.
Avise is a reservoir hydroelectric plant that utilizes the energy of water from the upper Dora di Valgrisenche. The annual renewable energy production that the power plant achieves from its three Pelton turbine-powered units - with a total capacity of 126 MW and a maximum flow rate of 16.5 m3/second - is more than 285 GWh.
The engine room dating from 1954, designed by architect Giovanni Muzio, carved out of a cave and reached through a tunnel about seven hundred meters long, is adorned with a large fresco depicting the twelve signs of the zodiac.
The cavern, which houses both hydropower units and voltage step-up transformers to vector the renewable electricity produced outside, could contain a ten-story building because of its size.
Characteristics of the plant
Key information
Municipality: Avise (AO)
Commissioning: year 1954
Watercourse: river Dora Baltea
Intake structure: Beauregard dam
Other information
Altitude: 735 m asl
Catchment basin: 110 km2
Capacity: 2,345,000 m3
Diversion canal: pressurized
Length: 11 km
Other information
Units: no. 3+2 with Pelton turbines
Concession jump: 972 m
Flow rate: 16.5 m3/s
Power: 126 MW