Renewable energy in Norway

Norway is a heavy producer of renewable energy because of hydropower. Around 88% of electricity production in Norway is from 1971 hydropower plants with a combined production capacity of over 40 GW (87 TWh reservoir capacity, storing water from summer to winter). Normal annual hydropower energy production is around 157 TWh. (Up from 135.3 TWh in 2007). There is also a large potential in wind power, offshore wind power and wave power, as well as production of bio-energy from wood. Norway has limited resources in solar energy, but is one of the world's largest producers of solar grade silicon and silicon solar cells.