The Canadian power group Ontario Power Generation (OPG) has completed the refurbishment of the second reactor (878 MW) of the Darlington nuclear power plant in Bowmanville, Ontario (Canada), and has reconnected it to the power grid. OPG completed the reconstruction of the second unit of the nuclear power plant in late March 2020 and the unit reached first criticality in April 2020.
The 3,512 MW Darlington facility consists of four operating CANDU reactors rated 878 MW each, which started commercial operation between 1990 and 1993. OPG started to refurbish the Darlington-2 CANDU nuclear reactor in October 2016 (reassembly started in June 2018) in order to extend its operating life for another 30-year period. The other units will be refurbished later; works on the third reactor were expected to start in May 2020 but will be postponed due to the Covid-19 pandemic. The entire refurbishment programme, estimated at C$12.8bn (US$9.5bn), is expected to be completed by 2026.
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