About Siso Energi

Contact information

Siso Energi AS
Valjord
N-8226 Straumen, Norway
Telephone: +47 75 69 81 00
E-mail: post@siso.no
Manager: Stig Grønli, sg@sisoenergi.no

Siso hydropower plant

Facts:

• Average yearly production: 957 GWh
• The power plant started operating the first aggregate in 1968 and the second aggregate in 1970
• The units have these rated outputs:
  • Turbine: 80 + 100 = 180 MW (Pelton turbines)
  • Generators: 94 + 135 = 229 MVA
• Average head: 646 meters
• Reservoirs: Sisovatn/Rundvatnet and Løytavatnet connected by tunnels
• Reservoir capacity: 940 GWh
• Sisovatn: Highest regulated water level 671 meters above sea level, lowest regulated water level 615 meters above sea level
• Catchment area: 233,7 km²

The machine room in Siso hydropower plant.

Sisovatn is the main reservoir for Siso power plant.

Lakshola hydropower plant

Facts:

• Average yearly production: 107 GWh
• The power plant started operating in 1999
• The power plant has one aggregate. The unite has these rated outputs:
  • Turbine: 31 MW (Francis-turbine)
  • Generator: 34 MVA
• Average head: 316 meters.
• Main reservoir: Faulvatn. Highest regulated water level 317,5 meters above sea level, lowest regulated water level 314,0 meters above sea level
• Reservoir capacity: 19 GWh
• Catchment area: 77,1 km²

The machine room in Lakshola hydropower plant.