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Darlington refurbishment project

Our mission, vision & valuesAs Ontario’s largest clean electricity generator, see how our focus is on generating safe, efficient, and reliable energy.Learn MoreAbout Our ...

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Darlington SMR
The Darlington site is the only location in Canada licenced for new nuclear with a completed and accepted Environmental Assessment.
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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.

Ouimet Canyon Provincial Park, Thunder Bay, Ontario

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Territorial Acknowledgement
- Territorial Acknowledgement
  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.
Central Ontario
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  Southwestern Ontario is host to our NSS - Western Waste Management Facility in Bruce County, our Eugenia hydroelectric station near Meaford, and our Nanticoke Solar Facility on the site of the former Nanticoke coal station.

Hydroelectric Water Portal (water.opg.com)

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

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Watt’s New
In our revamped e-newsletter, find out how we're helping electrify Ontario while strengthening its economy, communities, and the environment.
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June 16, 2026

7 min read

Pickering Nuclear Performance Report - Q1 2026 Results

Accent: 1drj026yib8x

Performance update

As part of our commitment to keep you informed, this report tracks performance for Ontario Power Generation’s (OPG) Pickering Nuclear Generating Station in the areas of safety, operational and environmental performance, and significant accomplishments during the first quarter of 2026.

4.1 TWh

Electricity production

The electrical energy generated, minus station needs

OPG’s nuclear electricity generation for Q1 of 2026 totaled 10.1 terawatt hours (TWh).

In Q1 2026, Pickering Nuclear produced 4.1 TWh of electricity, which was 8.9 per cent of the electricity produced in Ontario.

91.38% UCF

Reliability

Unit capability factor

By the end of Q1 2026, Pickering’s Unit Capability Factor (UCF) this year to date is lower (91.38) than in Q1 2025, primarily as a result of an increase in the number of days the station has been shut down for maintenance outages.

0 spills

Environment

Spills to the environment

During Q1 2026, there were no spills to the environment at Pickering Nuclear reportable to a regulatory authority.

0.07 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. By the end of Q1 2026, the 12-month rolling average TRIF was 0.07 injuries per 200,000 hours worked.

About OPG’s Nuclear Generating Stations

OPG owns and operates the Pickering and Darlington Nuclear Generating Stations. The two stations have a combined generating capacity of about 5,576 megawatts. Accounting for 22.1% of the electricity produced in Ontario in Q1, OPG’s nuclear units generated 10.1 TWh.

Questions?

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

Accent: aq4xtj0glemu

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Pickering Performance Report – Q1 2026

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