After 18 years, Europe's largest nuclear reactor starts regular output

HELSINKI -- Finland's much-delayed Olkiluoto 3 (OL3) nuclear reactor, Europe's largest, began regular output early on Sunday, its operator said, boosting energy security in a region to which Russia has cut gas and power supplies. Specialists work inside Olkiluoto-3 nuclear reactor in Eurajoki, Finland August 17, 2017. HELSINKI -- Finland's much-delayed Olkiluoto 3 (OL3) nuclear reactor, Europe's largest, began regular output early on Sunday, its operator said, boosting energy security in a region to which Russia has cut gas and power supplies. Specialists work inside Olkiluoto-3 nuclear reactor in Eurajoki, Finland August 17, 2017. Photo: ReutersConstruction of the 1.6 gigawatt (GW) reactor, Finland's first new nuclear plant in more than four decades and Europe's first in 16 years, began in 2005.