Finland has four privately owned nuclear reactors producing 18% of the country's energy and one research reactor (decommissioned 2018 ) at the Otaniemi campus. The fifth AREVA-Siemens-built reactor – the world's largest at 1600 MWe and a focal point of Europe's nuclear industry – has faced many delays and is currently scheduled to be operational by 2018–2020, a decade after the original planned opening. A varying amount (5–17%) of electricity has been imported from Russia (at around 3 gigawatt power line capacity), Sweden and Norway.