Darlington Unit 2 powers on

Work on Unit 2, the first of four reactors to be refurbished, began in October 2016 when the unit was disconnected from Ontario’s electricity grid. After successfully defuelling the reactor, work got underway to dismantle and reassemble the reactor. This complex work was practised at OPG’s Mock-up and Training Facility at the Darlington Energy Complex, where more than 750,000 hours of robust training were completed. This in-depth training enabled the team to practise complex tasks before performing them in the field, resulting in improved efficiencies. The project’s success was also aided by innovative technology and precision tooling delivered by hundreds of Ontario manufacturers.

Reconnecting Unit 2 to the grid signals another era in its world-class commercial service for the province.

“At the best of times, this would have been a daunting task,” said Reiner. “To have completed the final steps amid the challenges, distractions and restrictions related to COVID-19 is a true testament to the team of nuclear professionals who played a role in this project. Their commitment to the safe, quality completion of this job amidst a global situation unlike any we’ve ever experienced has not gone unnoticed.”

“This is an incredible accomplishment, made all the more challenging by undertaking the work while safely operating a world-class multi-unit station,” added Steve Gregoris, Senior Vice President, Darlington. “Our team’s commitment to safety and dedication to doing the job with quality – regardless of conditions – has been nothing short of extraordinary.”