SKRUELSVATN APRIL 2010 A r tbox PRIN PURE ENERGY Welcome to OSA RUNDAVATN T : RK G Average Statkraft’s

Power plant/ Number Capacity production ownership Entered ra f

Operating area Location Pump station of units (MW) (GWh/ year) interest (%) operation i s k PH SIMA OTO Sy-Sima 2 620 1750 65 1980 LANGVATN Eidfjord : W Lang-Sima 2 500 1090 65 1980 ill y H

Total Eidfjord 4 1120 2840 aral dse n

REMBESDALSVATN / VANN S CANPI

SIMA X , KRAFTVERK SIMADALEN ST HARDANGERJØKULEN A T KRA FT EIDFJORD The Sima power plant is located in Eidfjord, at the end of the . The power plant, which has the Glacier as its water source, is ideally situated for power generation. Here are rivers, cascading waterfalls and plenty

ØVRE EIDFJORD of precipitation. The nominal annual production at Sima is 2840 million kWh – or almost the annual consumption of a city the size of Bergen.

SYSENVATN Hydropower plant Intake The Sima power plant has four main reservoirs and a total reservoir volume of Outflow Dam approx. 660 million cubic metres of water. The power station itself is located Water leading tunnel Regulation area 700 metres inside the mountain, where headrace tunnels and penstocks lead the water from the reservoirs in the mountains and down to the four turbines inside the mountain hall.

Hydropower is clean and renewable – a literal perpetuum mobile. The sun evaporates the water, which returns as precipitation from which we can generate Statkraft Energi AS Sima kraftverk energy. Power plants with reservoirs, such as the one at Sima, are flexible, N-5783 Eidfjord, Switchboard + 47 53 67 30 00 meaning that we can generate power as and when required and when other renewable sources, such as wind, solar and tidal power, cannot be used.

www.statkraft.no Since the opening in 1980, the Sima power plant has supplied both Norway SIMA POWER PLANT and Europe with pure, renewable energy. π Built inside the mountain (Mountain hall) π Four generators π Annual average production: 2.8 TWh π Length of waterways (tunnels): approx. 30 km. π Total reservoir volume: approx. 660 million cubic metres of water

PURE ENERGY FROM WATER TO HISTORY LOCAL HISTORY HYDROPOWER AND Norway is, quite literally, history is also closely power and district heating, 1917-1962 1968-1980 1997-2010 built on hydropower. The linked to the development and is a major player on the ELECTRICITY economic growth and of hydropower towards the European power exchanges. 1917: Osa Fossekompani 1968: The application for 1997: Statkraft assumed THE ENVIRONMENT progress is clearly linked to end of the 1800s. Today, Statkraft also develops AS started hydropower de­ a development license was operations of Bjølvo Power the development of hydro­ Statkraft is Europe’s largest marine energy, osmotic velopments in Osa as early submitted. station. power. Electricity was the renewable energy company. power and other innovative as 1917, but the company most important production The group develops and energy solutions. went bankrupt after eight 1973: The Norwegian 2004: The new Bjølvo Power factor in the industrialisa­ generates hydropower, wind years and all work was Parliament, the Storting, station entered operation. VANN VANN tion of Norway. Statkraft’s power, gas power, solar suspended. During World approved a limited develop­ War II, work resumed, but ment, and work commenced. 2006: A new distribution was stopped shortly after. tunnel was constructed to The hydropower resources 1977: As many as 1200 use water from the Oneåna in Osa later became part of persons were involved at river, and this increased the the Sima power plant. the peak of the construction production capacity by 36 The water is collected in the reservoirs in the mountains. From there, the water period. GWh. Hydropower is a renewable, clean, reliable and flexible energy source. It is a 1962: Statskraftverkene is released into tunnels and shafts to the power station and the turbines. The started initial planning. 1980: Sima power station mature energy technology which will supply electricity for generations, and hydro­ water rotates the turbine runner and drives the generator mounted on the same opened. power plays a strategic role in reducing and handling climate change. Expertise driveshaft. The kinetic energy is transformed into electric energy in the generator. in developing hydropower plants has developed together with knowledge of the The generators in the Sima power plant have a voltage of 16 and 20 kV (kilo volts). environmental impact. To minimise possible losses during transmission from the power plant to the consumer centres, the voltage is converted to 420 kV. Then the energy is fed Hydropower plants with reservoirs such impact, Statkraft is obligated onto the power grid that covers the entire country. are a bit like rechargeable batteries, by law to ensure that fish is replaced. meaning that they store water as an This has grown to be a quite a big task. energy resource. Hydropower plays Statkraft has therefore built several 1. the kinetic energy from the water level is an important role in renewable energy hatching facilities for restocking fish, the raw material of the energy production. generation as hydropower is able and is also partner in a few joint hatch­ 2. In the power station, the water is routed into to supply the electricity grid when eries. At the Sima power plant we have Transmission a turbine runner under high pressure. there is no wind or sun. Hydropower a modern hatchery facility in opera­ Intake reservoir lines contributes to security of supply and tion. Every year, the facility produces 1 3. A generator transforms the kinetic energy energy flexibility without the emission some 100 000 smolt (salmon and trout Dam to electricity. of greenhouse gases. babies ready to migrate to the sea) Transformer and 150 000 fish for restocking char. 4. the water is lead through an outlet tunnel Statkraft spends vast resources on and back into the river. 5 specific conservational and environ­ Statkraft is continuously seeking to mental measures, and carries out improve the natural environment for Intake Magnetiser 5. transmission lines transport the energy to research at the highest levels for the the fish in the rivers, and carries out a where it is needed. benefit of tomorrow’s environment number of biotope adjustment meas­ and power supply needs. ures in many river systems. Statkraft Penstock operates a gene bank on behalf of Hydropower can cause changes in the Norwegian Directorate for Nature 3 Generator the water flow and levels of rivers Management, where live salmon from Generator and lakes, which makes it difficult for the counties of and Sogn shaft salmon and trout to spawn. To mitigate og Fjordane are preserved 2 Turbine 4 Run-off