Ontario Power Generation’s expansive refurbishment project on its four 878-MWe CANDU units at the Darlington nuclear power plant is proceeding faster than expected, OPG announced on September 17.

Ontario Power Generation has announced that refurbishment of Unit 3 at its Darlington nuclear plant is progressing ahead of schedule, with an expected return to service by late 2023, rather than early 2024.

Ontario Power Generation has passed the midway point in its C$12.8 billion (about $10 billion) Darlington nuclear plant refurbishment project with the start of work on Unit 1, the company has announced. The unit is expected to be ready for grid reconnection in the second quarter of 2025.

Darlington houses four 878-MWe CANDU pressurized heavy water reactors, all of which entered commercial operation in the early 1990s. The plant is located in Clarington, Ontario, Canada.