Canada Claims Nuclear Sovereignty Amid Local Realities and Hidden Costs

(Photo by Robert T Bell via Wikimedia Commons/CC BY 2.0 DEED)

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Rising electricity demands and net-zero targets are driving Canada to rewrite its energy playbook. At the same time, federal and provincial governments are betting big on a new generation of atomic power: Small Modular Reactors (SMRs).  

At the centre of this shift is Ontario Power Generation’s $20.9 billion Darlington New Nuclear Project—racing to build the G7’s first commercial SMR. Policymakers turned to the American-Japanese BWRX-300 light-water design, committing to an industrial pivot that is reshaping Canada’s nuclear identity. 

Canada adopted light-water technology and now relies on foreign enrichment facilities to fuel its grid. However, this dependence on foreign enrichment raises questions around national sovereignty, financial exposure, and long-term nuclear liability. 

The High-Stakes SMR Pivot 

Data centres, the expansion of artificial intelligence, and a post-pandemic economic pivot toward industrial electrification have sparked hunger for power across Canada. When variable renewables alone cannot secure the constant minimum baseload a rapidly digitalizing economy requires, where does the nation turn? Natural Resources Canada (NRC) answers that question in its Nuclear Energy Strategy for Canada, positioning next-generation SMRs. 

The  Darlington New Nuclear Project in Clarington, Ontario, proposes the deployment of four GE Hitachi BWRX-300 units with a combined capacity of 1,200 megawatts to power roughly 1.2 million homes. The Canadian Nuclear Safety Commission’s construction license approval and SMR projects clearing initial regulatory hold points, have paved the way for work spanning into the 2030s. 

To enable this massive capital undertaking, the state has deployed financial support, including a combined $3 billion equity injection from the Canada Growth Fund and the Building Ontario Fund. Alongside these investments is a $715-million Indigenous loan guaranteeing the Williams Treaties First Nations, whose lands the project rests on, with equity ownership. 

Outsourcing Enrichment

Yet, when a nation renowned for sovereign energy independence ties its atomic future to external supply networks and untested technology, what happens when geopolitical alliances fracture and international markets fail to deliver?

Unlike Canada Deuterium Uranium (CANDU) reactors, which run on unenriched natural uranium minted and processed locally, the BWR-300 requires enriched fuel. Without domestic enrichment facilities, Canada must ship its raw uranium to facilities across the globe. 

Canada mines raw uranium in Saskatchewan and refines it in Port Hope, Ontario and outsources the crucial middle steps of enrichment and fuel fabrication to Urenco in Britain, Orano in France, and the United States. This reliance exposes an essential public utility to geopolitical tensions. Nuclear exports carry multidecadal supply contracts for parts and fuel. 

As York University policy professor Mark Winfield points out, relying on imported enriched uranium gives foreign suppliers leverage over Canada’s energy security during trade or diplomatic disputes.

The Geopolitical Risk of Foreign Fuel 

Energy policy analyst Andrew Evans outlines how global nuclear geopolitics carry profound stakes. Particularly, rising authoritarian regimes leverage state-backed nuclear expansions and fuel supplies to lock developing economies into multi-decade political dependencies. When democratic states rely on vulnerable foreign trade networks or experimental nuclear architecture, they expose domestic grids to severe geopolitical coercion. 

With traditional enrichment heavily concentrated among foreign actors, Western utilities operate under an increasingly fragile nuclear umbrella where the risk of weaponized supply chains is present. The volatility of these international lines and maritime trade routes carries compounding economic consequences that ripple far beyond regional conflicts. Unlike oil, which benefits from petroleum reserves and alternative overland routes, liquefied natural gas and specialized nuclear inputs cannot be easily rerouted or substituted when transit channels are blocked. 

For a nation planning an expansive SMR fleet, exposure to foreign enrichment and vulnerable global supply chains invites a significant economic and geopolitical risk. 

Carrying the Cost 

Ontario Power Generation and Atomic Energy of Canada Limited joined industrial developers like GE Hitachi to sell small modular reactors as a nimble fix for clean power. But shrinking a reactor’s physical footprint does not shrink its financial risk. 

As scholars M.V. Ramana and Allison Macfarlane point out, shrinking a reactor does not actually cut the massive, baseline costs of building it. SMRs lose the financial edge of older, larger plants, making every megawatt of power far more expensive. Unlike natural gas plants where up to 70 percent of the expense comes from building fuel, nuclear projects are intensely front-loaded, with  60 to 80 percent of total costs tied to plant construction. 

According to researchers like Brian Potter, in expert evaluations, heavy capital concentration makes any early budget slip or design inefficiency fatal to economic competitiveness. Of the Darlington New Nuclear Project’s $20.9 billion price tag for four units, the first reactor and its shared site infrastructure alone is costing up to $7.7 billion. 

History shows that these financial projections are rarely reliable. Plant construction at the Vogtle reactors in Georgia spiralled past $37 billion, while Hinkley Point C in the U.K. faced a 13-year build cycle plagued by massive overruns. SMRs remain an unproven commercial technology with no comparable units operating on a western electrical grid, multiplying the financial exposure for the host province 

Who ultimately pays the price when things go sideways? Ontario Power Generation plans to recover these capital costs over 60-years through electricity bills, projecting a rate of about 14.9 cents per kilowatt-hour. That leaves taxpayers on the hook to absorb the fallout if costs spiral out of control. 

Electricity System Operator indicates that while alternative paths using wind, solar, and battery storage carry their own footprint, they can match or beat nuclear’s projected costs without exposing consumers to catastrophic budget overruns. 

The Environmental Waste Crisis 

The promises of clean SMR innovation crash against unresolved radioactive burdens of the nuclear fuel cycle. Introducing unproven light-water and SMR designs creates radioactive waste streams that bypass the long-term disposal frameworks and environmental calculations originally set for CANDU reactors. 

Far from reducing environmental burdens, researchers at Stanford and the University of British Columbia reveal that most SMR designs will increase the volume and complexity of nuclear waste by factors of 2 to 30 times relative to their energy output. Compact geometries trigger this surge through neutron leakage, which bombards surrounding structures and generates massive quantities of activated waste. 

Compounding this technical burden is the hundreds of thousands of years required for isolation and the near-total lack of operational deep geological repositories for nuclear waste anywhere on the planet. While initiatives like the proposed Deep Geological Repository in Northwestern Ontario aim to secure millions of radioactive bundles, communities along proposed transport routes face thousands of kilometres of high-risk transit over public roads with no waste-specific federal regulations. 

Furthermore, SMR proposals that seek to “recycle” spent fuel introduce proliferation hazards and liquid waste containment nightmares. Reprocessing involves dissolving spent fuel in acid to extract plutonium, generating liquid waste that is virtually impossible to contain securely over the vast timescales demanded by radioactive decay. 

The Human and Community Footprint

Energy plans look simple on paper, but the reality on the ground looks very different. Just miles from proposed reactor sites near the Rafferty Reservoir, generations-old family orchards face an uncertain future alongside shrinking water supplies and creeping industrial traffic. 

These radioactive and ecological dangers cannot be separated from their profound human footprint, as Indigenous communities have long been forced onto the frontlines of Canada’s nuclear industry. The historical legacy is rooted in uranium mining operations in northern Saskatchewan that displaced Cree and Dene communities, and left behind tailings containing 85 percent of the ore’s radioactivity that must be safely managed for hundreds of thousands of years. 

The legacy of exploitation expanded to Elliot Lake, once known as the Uranium Capital of the World. Serpent River First Nations members suffered high rates of lung cancer from toxic mining dust, and millions of tons of radioactive tailings continue to threaten livelihoods. Atomic expansion has left a devastating multigenerational trail of environmental degradation that extends to communities like Port Hope, Ontario, where residents are undergoing one of Canada’s largest low-level radioactive waste cleanups. 

These historical inequities persist in recent nuclear development. Indigenous leaders and organizations such as the Committee for Future Generations, the Assembly of First Nations, and regional councils have spoken out against these burdens. Advocates highlight how industry consultations such as the Nuclear Waste Management Organization’s incentives and compressed 30-day review windows for initial projection descriptions often rely on divisive financial pressures and compressed timelines rather than achieving informed consent.

Footing the Bill for Tomorrow 

Canada’s push for SMRs stands at a crossroads, where financial and environmental risks threaten to overshadow the country’s climate goals. In reality, clean energy promises mask heavy costs: soaring construction budgets, delayed timelines, and rate increases that hit households. Worse, these reactors threaten to expand our radioactive waste footprint. 

Staking our energy future on unproven technologies and unmanaged waste does not solve the climate crisis; it trades today’s emissions for an inheritance of hazard and public debt. 

Meaningful decision-making belongs with the people who live with the results, especially Indigenous Nations whose lands and waters have historically borne the worst impact of nuclear development. Communities can challenge this direction today by speaking out at utility board hearings, insisting on clear answers about hazardous waste transport, and standing alongside Indigenous Nations in their right to free, prior, and informed consent.

The pivot to SMRs is not a foregone conclusion. Building sustainable energy requires scientific review, debate over reactor risks, and respect for local authority before shovels hit the ground. 

Edited by Emma Webb