Courtesy of REC Group. REC Solar Norway produces high purity silicon for use in solar cells, using a unique metallurgical purification method that REC Group claims consumes upwards of 75 percent less energy than typically competing processes, e.g., the Siemens process as used by the majority of the industry players, mainly in China. REC Solar Norway has an annual production capacity of more than 8,000 Mt, corresponding to an annual solar panel production of about 2.5 GWp. Installed in Norway, these panels would produce around 2 TWh per year, enough to power all households in Bergen. Installed in a Mediterranean country like Spain, the panels would deliver in excess of 3 TWh annually over an expected lifetime of more than 30 years.