 The construction of the two power stations has provoked a huge controversy in Norway, due to the large amounts of carbon dioxide that will be emitted.The Kårstø plant will emit 1.2 million tonnes of carbon dioxide, or about 2.5% of the total emissions of Norway.Prior to the opening of the Kårstø power station on November 2, 2007 Norway's sole domestic production of grid electricity was provided through renewable energy.