More than 75% of Norwegian hydropower production is rendered flexible through the use of reservoirs, which represents half of Europe's total reservoir storage capacity. This is a perfect counterbalance to the increasing amount of non-flexible production, exemplified by wind and. Norway has the highest share of electricity produced from renewable sources in Europe, and the lowest emissions from the power sector. At the beginning of 2025, Norway's power supply had an installed production capacity of 40 334 MW, with an estimated normal annual production of around 157 TWh. GWh Electricity generation by price area and type of production. GWh 1 Total electricity. The Norwegian power sector is, in general, highly regulated – particularly when it comes to hydropower activity, which has more than 100 years of history and still forms the backbone of Norway's power system.
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