The first time Norway took part in Earth Hour was in 2009 and since then Norway has participated every year.

The responsibility for coordinating Earth Hour in Norway lies within WWF Norway's campaign group. Each year around 2 million Norwegians, about 40 percent of the population, participate in Earth Hour. Among the highlights from the last years are downhill torch skiing, Earth Hour competitions between majors from some of the largest Norwegian cities and live Earth Hour concerts several places in the country.
2014 was a record breaking year in Norway. 208 of 428 Norwegian municipalities attended Earth Hour and a record number of companies, organizations and iconic buildings joined the celebration. Key iconic buildings were The Royal Castle, The Norwegian Parliament and Norway’s largest cathedral The Nidaros Dome. Even Norwegian fishing boats in Antarctica turned off their lights.