The global energy landscape is undergoing a profound transformation, largely driven by the emergence of small modular reactors (SMRs) . Recently, an agreement between the United States and the United Kingdom to develop 20 mini-reactors has captured headlines, signaling a nuclear renaissance that is gaining momentum. Tech giants like Amazon , Google , and Microsoft are opting for these SMRs, purportedly because they are faster to construct, more adaptable, and cheaper. They are also viewed as pivotal for the decarbonization of the energy grid. However, as much optimism surrounds this nuclear technology, a closer examination reveals some troubling realities.
The Cat in the Room. Researchers from the University of Sussex have put forth an unsettling analysis in their study for The Conversation. They argue that SMRs are in fact “the most expensive source per kilowatt of electricity generated” in comparison to natural gas , traditional nuclear, and especially renewable sources. Alarmingly, many proposed designs have yet to transition from the PowerPoint stage to commercial viability.
If SMRs aren’t the most cost-effective or efficient choice, why this surge in political and financial support? The answer appears to lie deeply intertwined with military power rather than economic efficiency.
Subsidy Dependency. Market analysts suggest that SMRs are leveraged primarily to access substantial government subsidies. One critical factor often disregarded in debates about energy is the military’s reliance on the civilian nuclear sector.
To maintain nuclear weapons programs or a fleet of nuclear submarines, a country requires unfettered access to reactor technologies, specialized materials, and highly trained personnel. Without a civilian nuclear industry , sustaining military capabilities would become prohibitively expensive.
Nuclear Submarines. For instance, the United States operates 66 nuclear submarines , while the United Kingdom maintains nine . These submarines demand a resilient national nuclear industrial base. Here enters a key industry player: Rolls-Royce . The company has already been instrumental in constructing reactors for British submarines and is now poised to develop the new civilian SMRs.
In a candid statement, Rolls-Royce noted in 2017 that the establishment of a civilian SMR initiative would alleviate the Ministry of Defense of the burden of developing and maintaining requisite skills and capabilities. By sustaining a robust nuclear industry, military expenses become discreetly concealed within civil programs. Consequently, taxpayer dollars funneled into energy budgets indirectly subsidize military expenditures.
A Global Pattern. The interest in SMRs extends beyond the Anglo-Saxon world; similar patterns are observable in global nuclear policy. The Pentagon envisions mini-reactors as integral to future energy strategies, including their deployment on the battlefield and support for innovative weapon technologies like laser systems aimed at counteracting drones and missiles.
This military enthusiasm for SMRs reflects a broader global trend. In China and Russia , the connections between civilian and military nuclear programs are overtly acknowledged. Even French President Emmanuel Macron stated, “without civil nuclear energy, there is no military nuclear energy; and without military nuclear energy, there is no civil nuclear energy.”
The Renewable Challenge. Adding a twist to the debate, a letter recently published in the Guardian , endorsed by former senior NATO leaders, advocates for redirecting defense budgets to invest in renewable energy sources. The authors argue that the climate crisis poses a significant threat to national security, and therefore, funding for solar and wind energy would bolster resilience against aggressive actors like Russia . The overarching sentiment is that energy sovereignty is inextricably linked to national security.
As we navigate the complexities of energy production and military necessity, the juxtaposition of SMRs against renewable sources illustrates a critical choice facing our societies. The potential for a clean energy future powered by renewables stands at odds with a hefty military investment hidden in the guise of civilian nuclear programs. As the implications unfold, we must ask ourselves whether the pursuit of energy should cater primarily to the needs of military agendas or to the imperatives of climate sustainability.
Image | Rolls-Royce

