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A Small Modular Reactor (right) compared to a traditional nuclear reactor.

Small modular reactors

Like mobile phones and home computers, many things get smaller and more efficient over time.

Ontario’s nuclear energy potential is no exception, and Ontario Power Generation is helping lead the way in the advancement of small modular reactor (SMR) technology – the future of nuclear power generation.

Learn how these small, carbon-free, modular reactors can help meet Ontario’s changing energy needs while combating climate change.

Small but mighty

Learn about the technology that's the next evolution in nuclear energy.

Small modular reactor facts

Small Footprint

SMRs require far less space than traditional reactors

Fission Reaction

Heat and power are efficiently generated through fission

Prebuilt Off-site

SMRs are factory constructed and delivered to site

150 Solutions

Over 150 SMR technologies proposed, worldwide

The next generation of nuclear

SMRs, like current nuclear reactors, are designed to provide reliable, carbon-free electricity, but with a much-smaller land footprint than current reactors.

Factory constructed and modular, many SMRs are delivered to site and can be used for generating electricity as well as producing heat used for other applications like district heating for commercial or residential needs, hybrid energy systems, water desalination, or heavy industry applications.

From 1 megawatt to 300 megawatts, SMRs are a reliable alternate energy source to diesel in rural communities, and a significant growth opportunity for OPG and Ontario.

SMRs are good for Canada

A recent collaborative study found SMRs could be a beneficial addition to Canada’s energy mix and urged the Canadian government to support the advancement of SMRs. The Canadian roadmap study for SMR deployment report found that Canada is uniquely positioned to lead the world in SMR development given its long history in nuclear power.

To bring SMRs to Canada, OPG is collaborating with leading SMR vendors like NuScale Power and Global First Power, both of which are working to deploy ground-breaking SMR technologies.