Darlington unit 1 began producing Cobalt-60 in February 2025, for the first time, and now has joined units at Pickering B and Bruce B in producing one of the world’s most vital medical and industrial isotopes.
Co-60 will be harvested after a 3-year activation campaign.
Darlington Unit 1’s power production since Jan 1 has been rock steady: 863 MW mean, with a standard deviation of 12 MW through the 2,664 hours from January 1 through April 21; see the plot below.

The plot also shows which generation type meets demand above baseload, and which is superfluous. DNGS-1 very obviously is a baseload supplier.
From electronvolts to megawatt-hours, DNGS-1 does it all.
Read more at https://cnwc-cctn.ca/wp-content/uploads/2025/05/news_may_2025.pdf