• News
  • February 22, 2018

Darlington’s Unit 2 Nuclear Refurbishment Marks Half-Way Point

Canada’s Largest Clean Energy Project on Time, on Budget

The refurbishment of Darlington Nuclear Generating Station’s Unit 2 reactor is now halfway complete, a significant milestone in the overall refurbishment of four reactors at Darlington. The project remains on time and on budget, and Ontario has confirmed its commitment to start refurbishment work on Darlington Unit 3.

The refurbishment of Darlington will secure 3,500 megawatts of affordable, reliable and emissions-free power. This is equivalent to taking two million cars off the road.

In Burlington, there are 13 local businesses that are part of the nuclear supply chain and benefit from the Darlington Refurbishment. These companies contribute over 625 jobs to Burlington’s growing economy.

Refurbishment and continued operation of Darlington up to 2055 will contribute a total of $90 billion to Ontario’s GDP and increase employment across the province by an average of 14,200 jobs annually, including over 2,600 jobs on-site at Darlington.

Ontario’s plan to create fairness and opportunity during this period of rapid economic change includes a higher minimum wage and better working conditions, free tuition for hundreds of thousands of students, easier access to affordable child care, and free prescription drugs for everyone under 25 through the biggest expansion of medicare in a generation.


“The Darlington refurbishment will ensure that reliable nuclear energy continues to be the backbone of our generation fleet, which is now 96 per cent emission-free. This multi-phase project will continue to boost economic activity across Ontario, create jobs and secure a clean supply of affordable electricity for the future.”

— Glenn Thibeault, Minister of Energy

“Burlington is home to 13 thriving, local businesses and valuable contributors to the nuclear supply chain. The Darlington Refurbishment project ensures that generations of Ontarians will have clean energy that they can count on, while supporting hundreds of Ontario businesses and fostering good jobs in communities like ours.”

— Eleanor McMahon, MPP for Burlington


  • Nuclear energy provides over half of Ontario’s annual electricity generation and is the province’s largest source of clean, reliable and affordable power.
  • In service since the early 1990s, the Darlington Nuclear Generating Station houses four nuclear reactors with a total capacity of 3,512 MW and supplies approximately one-fifth of the province’s electricity needs.
  • In a report released in November 2017, the Financial Accountability Office of Ontario concluded that there is currently no portfolio of alternative low GHG emissions generation which could replace nuclear generation at a comparable cost.


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