The Olkiluoto power plant consists of two plant units, Olkiluoto 1 and Olkiluoto 2, with a combined power output of 1,780 MW. The Olkiluoto 3 plant unit is preparing for production operations. Its net electricity production capacity is approximately 1,600 MW.

OL1 and OL2 are among the most reliable nuclear plants in the world. Olkiluoto 3 is Finland’s most significant contribution to the climate effort.