OPG achieves two major Darlington Refurbishment milestones

Units 3 and 1 at OPG’s Darlington Nuclear Generating Station have reached major milestones on the Darlington Refurbishment Project: Unit 3 construction is complete with operational testing in progress to return the unit to commercial operations and Unit 1 has transitioned from disassembling the reactor to rebuilding.

Less than three years ago, OPG and its project partners began refurbishing Unit 3, followed by Unit 1, which was taken offline for refurbishment in February 2022. Refurbishing two Darlington units simultaneously was a first for the project.

Darlington’s Unit 2, the first unit to be refurbished starting in 2016, was successfully returned to service in 2020.

"The successful completion of the construction phase on Unit 3 is something we are very proud of," said Subo Sinnathamby, Senior Vice President, Nuclear Refurbishment. “And effectively implementing more than 4,000 lessons learned from Unit 2 into planning and execution of Unit 3 and 1 has resulted in continued safety, high quality workmanship, schedule adherence and cost performance.”