Small modular reactors

Small but mighty - SMRs are the future of nuclear

Imagine a technology that could produce clean, low-carbon power, be factory-assembled and delivered anywhere in the world, and provide reliable, affordable energy to homes, district heating to entire communities, or power for heavy industry. That’s the promise of small modular reactors (SMRs), the next-generation of nuclear technology that is set to be deployed by OPG right here in Ontario – the first place to do so in North America.

Ontario is leading North America's clean energy future

On July 7, 2023, the Ontario government announced it is working with Ontario Power Generation (OPG) to commence planning and licensing for three additional SMRs, for a total of four, at our Darlington nuclear site.

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Big things start small

Small modular reactor technology will have a big impact in the global fight against climate change

A conceptual rendering of the BWRX-300 SMR plant by GE Hitachi Nuclear Energy.

Darlington New Nuclear Project

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

A conceptual rendering if the proposed Global First Power MMR.

Global First Power MMR

Global First Power, a joint partnership between OPG and Ultra Safe Nuclear Corporation, is building a micro modular reactor capable of generating 15 megawatts (MW) of thermal energy and 5 MW of electricity that can be used to provide industrial projects with heat and energy.

Katherine Moshonas Cole and Ken Hartwick


We are also working with X-energy to pursue opportunities to deploy the Xe-100 SMR for industrial applications in Canada. These SMRs could help heavy industry reach climate change goals by using clean, safe electricity and high temperature steam efficiently to power production facilities and decarbonize industrial processes.

SMRs and Canada: a perfect match

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The Climate Challengers

EP01 - Nuclear Katie: Why net-zero needs nuclear

EP01 - Nuclear Katie: Why net-zero needs nuclear

On our very first episode, Andrea talks with Katie Mummah about challenging the perceptions of nuclear power and why net-zero needs nuclear.
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