Ontario Powers Ahead: First Small Modular Reactor in G7 Underway

March 10, 2026

Ontario is making history by becoming the first jurisdiction in the G7 to begin construction on a small modular reactor (SMR). This significant development positions the province as a global leader in advanced nuclear technology and clean energy innovation.

Key Takeaways

Ontario is pioneering the construction of the first SMR in the G7.
The project aims to provide reliable, carbon-free electricity.
SMRs offer a flexible and scalable solution for energy needs.

A New Era of Clean Energy

Ontario’s commitment to clean energy is being amplified with the commencement of construction for its first small modular reactor. This initiative is a crucial step in the province’s strategy to ensure a reliable, affordable, and carbon-free electricity supply for decades to come. SMRs represent a significant advancement in nuclear technology, offering a more flexible and scalable approach compared to traditional large-scale nuclear power plants.

Benefits of Small Modular Reactors

The development of SMRs in Ontario is expected to bring numerous advantages. These reactors are designed to be built in factories, which can lead to faster construction times and reduced costs. Their smaller size also allows for greater site flexibility, making them suitable for a wider range of applications, including replacing retiring fossil fuel plants and supporting industrial operations. Furthermore, SMRs are anticipated to enhance grid stability and provide a consistent source of baseload power, complementing intermittent renewable energy sources like solar and wind.

Ontario’s Vision for the Future

This pioneering project underscores Ontario’s dedication to innovation and its role in the global transition to a low-carbon economy. By embracing advanced nuclear technologies, the province is not only securing its energy future but also fostering economic growth and creating high-skilled jobs. The successful deployment of this SMR could pave the way for wider adoption across Canada and internationally, solidifying Ontario’s position at the forefront of nuclear energy innovation.