Ontario Power Gen

The Darlington Refurbishment was more than just a project — it is the foundation for our nuclear future. Together, we've shown major nuclear projects can be done under budget, ahead of schedule. Now, we’re ready to lead & build for the future. Learn more: bit.ly/4bwvOrO

Our power = a stronger Ontario. More than 90% of the goods and services procured for OPG's nuclear and hydroelectric operations are sourced from suppliers in Ontario and Canada. We're proud to help support local industries and economic growth 🇨🇦

All hail the Queen of the North! Our Niagara Queen II icebreaker continues to conquer winter on the Niagara River. In January, the winter warrior set a record as the vessel and its crew worked around the clock for 30 days to break up a massive ice stop the size of 350 soccer pitches — the largest on the river since 2019 — keeping the power flowing at our Sir Adam Beck hydro stations. And she’s not taking a break just yet. The Queen was back in action this week to combat more ice. Thank you to the Queen II and its team, as well as NYPA’s William H. Latham icebreaker, for slicing through the cold to keep our operations clear and our communities safe. Learn more: bit.ly/47PQckN

A project worth celebrating! In northeast Ontario, our hydro facilities continue to provide clean, renewable energy thanks in part to the completion of the Little Long Dam Safety Project — a multi-year effort that involved expanding and rehabilitating the Adam Creek sluiceway structure, a key dam structure on the Little Long (GS) Reservoir, about 90 km north of Kapuskasing. The work has ensured our Lower Mattagami River hydro complex is prepared for extreme weather events while ensuring dam safety and reliable operations. All told, it took 1.4 million work hours, including 200,000 hours from Indigenous workers, to safely complete this project. Hats off to all involved! Learn more: bit.ly/4aNH40Q

This #NationalEngineeringMonth, we're shining the spotlight on OPG's engineering interns, who are turning school skills into real impact for OPG's operations and projects. Meet Amirah, a Software Engineering student at McMaster University, who is flexing her STEM muscles with Pickering Nuclear's Maintenance Strategies team. From decoding technical documentation to working cross-functionally, Amirah is helping support Pickering's safe and reliable operation. “My experience here has shown me how complex systems, strong engineering practices, and collaboration can shape infrastructure that entire populations depend on." Learn more: bit.ly/3OtMuH0

A milestone 10 years in the making! Darlington Nuclear’s Unit 4 has been reconnected to the grid at 100% power. With this, our four-unit Darlington Refurbishment project, which began in 2016, officially comes to a close — $150 million under budget and four months ahead of schedule. Unit 4’s return to service is more than just a renewed generator getting back in action. It’s the culmination of careful planning and preparation, millions of hours worked, and the dedication of thousands of people. Thank you to all who made the Darlington Refurbishment a resounding success – from our employees to our project partners to the province’s robust nuclear supply chain. You’ve helped set the standard and now we’re ready to keep delivering for Ontario’s future. Learn more: bit.ly/4s3iujW

Take a fly-over of the future home of the G7's first Small Modular Reactor. With the project now in full construction mode, the site is a hive of activity. More than 600 tradespeople are hard at work, preparing for our planned fleet of four SMRs. Once in service, the first SMR unit will generate ~300 MW of low-carbon, reliable power for Ontario, enough to power about 300,000 homes. Learn more: bit.ly/4s7FJsF

Follow @WattNextOPG to get the latest in clean energy learning! ⚡

A unique look 🔍 into one of our hydroelectric stations. At our Seymour Generating Station near Campbellford, workers are busy rebuilding the five-unit station's Unit 3. Here, they can be seen reinstalling the main turbine shaft. Next steps include runner installation, generator installation, commissioning and putting the unit back into service.   The station has been hard at work for nearly 117 years. Now, as it undergoes this major maintenance cycle, this vital hydro resource will be ready to deliver renewable, reliable, and affordable power for many more decades.

We're celebrating a milestone lift for a big hydro refurbishment! Recently, at our Otto Holden Generating Station, our team safely completed the lift and installation of the facility's new Unit 6 rotor - a crucial component that converts the mechanical energy from rushing water into electricity for Ontario. With a thorough understanding of safety procedures and the critical lift plan, the team executed a flawless fit with precision, skill, and teamwork. Now, this unit is on track to return to service later this spring to provide 33 MW of clean, reliable power for decades to come. Learn more: bit.ly/40ME68a

Ontario's nuclear industry currently helps support nearly 90,000 jobs across Canada. In the coming years, our industry will help support almost 150,000 new, quality jobs across the province. Join us as we help build Ontario’s clean energy future: jobs.opg.com

Today, on International Women’s Day, we celebrate the talented women at OPG who help deliver safe, low-carbon, reliable power for Ontario - every day.​ From engineers and skill trades advancing the G7’s first Small Modular Reactor, to mechanical technicians supporting hydro refurbishments, to control room operators in our nuclear stations -women are shaping our clean energy future at every level.​ Thank you for breaking barriers and raising the bar for generations to come. #IWD

Preparation has started for the Pickering Refurbishment’s new training facility. The 200,000-square-foot space will feature detailed mock-ups of the reactor and various components that replicate those used in the actual reactor building.​ Over 2,800 skilled trades will sharpen their skills and prepare here ahead of tackling the real deal - our innovative approach to ensuring a safe, efficient, and successful refurbishment for Ontario's future.​ Take a sneak peek at the facility in progress and learn more: bit.ly/4aMkTt9

Today, as we mark Employee Appreciation Day, we tip our hard hats to OPG's more than 11,000 skilled and talented workers - the people behind Ontario's power. Day in and day out, our team of professionals and tradespeople electrify life, setting the standard for dedication and commitment as they safely and reliably deliver electricity for Ontario's homes, businesses, and industries. Interested in joining our team? Learn about career opportunities at opg.com/careers.

Today, our President and CEO, Nicolle Butcher, joined industry leaders at the CIBC Nuclear Summit to discuss how we can work together to secure Canada's nuclear advantage. Nicolle was happy to share how OPG is cementing Ontario's leadership position on the global nuclear stage. Through our relentless focus on safe, reliable operations, our on-time, on-budget delivery of major projects, and our collaboration with industry, government, and investors, we are helping ensure nuclear remains a key pillar to our growth and prosperity.

With energy demand in northern Ontario projected to increase by approximately 80% by 2050, OPG was on hand at #PDAC2026 to talk about the potential role of nuclear and hydro power in supporting economic development.

This #NationalEngineeringMonth, we're shining the spotlight on our engineering interns, who are turning school skills into real impact for OPG's operations and projects. Meet Joelle, a Mechanical Engineering student at Nova Scotia’s Dalhousie University. She's now applying her skills and supporting equipment engineers to help advance preparation for Pickering Nuclear's upcoming refurbishment. “As I continue my journey at OPG, I hope to further develop my critical thinking and technical skills and am excited to contribute to a more sustainable future here and beyond," she says. Learn more: bit.ly/3OtMuH0

Look what's getting charged up! OPG subsidiary Atura Power, in partnership with Ameresco Canada, is progressing work on its 250-megawatt Napanee Battery Energy Storage System, which is capable of providing up to four hours of backup power during peak demand. This is an important step to enhancing Ontario's grid reliability and resilience. Visit aturapower.com to learn more.

🔋 Did you know? The new Volkswagen battery plant in St. Thomas is estimated to need ~380 megawatts (MW) of electricity to run at full capacity.​ To put that in perspective, that’s almost as much power as it takes to supply an entire city the size of Windsor, Ontario! As Ontario attracts more clean-tech manufacturing, reliable and clean electricity - like nuclear power - will be more important than ever.

🌊 Curious about the incredible power of water? Join us to discover how OPG harnesses hydropower along the Ottawa and Madawaska Rivers. In-person: Mar 5, 6:30pm, Westmeath Community Centre Virtual: Mar 11 (Ottawa), Mar 12 (Madawaska) 6:30pm Sign up: opg.com/eastern

We’re investing over $1 billion to upgrade our Niagara Falls hydro facilities - building on over 100 years of clean power generation and ensuring reliable electricity for decades to come. This project will power 1.7 million homes, create hundreds of jobs, and strengthen Ontario’s grid for a growing province. Hydro power isn’t just history - it’s our future. More clean energy, more jobs, and a stronger Ontario.💡🌊