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Once complete, this project will enable production of clean, safe, low-cost, and emission-free electricity from Darlington for 30 more years.

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Ouimet Canyon Provincial Park, Thunder Bay, Ontario

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The Power for Change Project was designed to give back to Ontario and to the communities where we operate, to help build a cleaner, more sustainable future for generations to come.

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  OPG respectfully acknowledges that the lands on which its generating stations and other assets are located are within the traditional and treaty territory of many Indigenous communities. Click to read more.
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Rough waters in the tailrace from Barrett Chute hydroelectric station.

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Find water level and flow information from gauges on rivers where OPG operates hydroelectric stations in Ontario.

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March 24, 2023

2 min read

Darlington Nuclear Performance Report – Q4 2022 Results

Performance update

As part of our commitment to keep you informed, this report tracks performance for Ontario Power Generation’s (OPG’s) Darlington Nuclear in the areas of safety, operational and environmental performance, and significant accomplishments during the fourth quarter of 2022.

5.9 TWh

Electricity production

The electrical energy generated, minus station needs

OPG’s nuclear electricity generation for Q4 of 2022 totalled 5.9 terawatt hours (TWh) compared to 8.4 TWh in 2021 in the same quarter. In Q4, Darlington Nuclear produced 2.3 TWh of electricity, which was 6 per cent of the electricity produced in Ontario.

86.99% UCF

Reliability

Unit capability factor

Compared to Q3 in 2021, Darlington’s Unit Capability Factor (UCF) for Q4 2022 is higher (86.99) primarily as a result of a decrease in the number of days the station has been shut down for maintenance outages.

0 spills

Environment

Spills to the environment

During Q4 2022, there were no spills to the environment at Darlington Nuclear reportable to a regulatory authority.

0.9 TRIF

Safety

Total Recordable Injury Frequency

Total Recordable Injury Frequency (TRIF) measures the number of injuries involving OPG employees that result in a fatality, lost time, requiring restricted work and requiring medical treatment per 200,000 hours. In Q3 2022, Darlington Nuclear recorded 0.9 injuries per 200,000 hours worked.

About OPG’s Nuclear Generating Stations

Ontario Power Generation owns and operates the Pickering and Darlington Nuclear Generating Stations. The two stations have a combined generating capacity of about 4,850 megawatts with Darlington Unit 1 and Unit 3 currently on refurbishment. Accounting for 16.0 per cent of the electricity produced in Ontario in Q4, OPG’s nuclear units generated 5.9 terawatt hours.

Questions?

Please contact Jennifer Knox, Director - Nuclear Stakeholder Relations, through the form below.

Other Darlington news

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