Ontario Power Generation announced it would refurbish four nuclear power units at the 3,512 MW Darlington Nuclear Generating Station, spending $9 billion ($12.8 billion Canadian) in a project that is expected to guarantee 3,000 jobs per year through 2026.
The investment is expected to add $10.4 billion (C$14.9 billion) to the province's economy, according to media reports.
The project involves replacement of significant reactor components. A joint venture between SNC-Lavalin Inc. and Aecon Group announced it had been awarded a $1.94 billion (C$2.75 billion) contract as part of the refurbishment for the plant that is 40 miles east of Toronto.
An estimate from the Province of Ontario said the project would provide 11,800 jobs annually through 2026, according to Reuters.
The project includes shutting down each of the reactors for approximately three years with the bottom line estimate that the project will extend the facility's commercial life for 30 years. The plant is already licensed into 2025.
The work includes replacement of fuel channels, feeder pipes, calandria tubes and end fittings.
There are, typically, between 380 and 480 calandria pressure tubes in the CANDU reactor design.