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OL1 and OL2

The nuclear power plant units Olkiluoto 1 and Olkiluoto 2 (OL1 and OL2) plant units are identical: they are boiling water reactors. The current net electrical output of OL1 is 890 megawatts (MW) and that of OL2 is 890 MW. OL1 was first connected to the national grid in September 1978 and OL2 followed in February 1980.