TODAY. Media enthusiasm for dodgy “cutting edge Lego-like micro-nuclear power plants” , (but doubts creep in).

modules assembled “like a LEGO kit” and designed to be fabricated, transported, and assembled within 24 months”
BUT -“the tech is still in the early stages and faces a myriad of hurdles.”
“has yet to obtain licensing and planning approvals“
“How the new fleet of SMRs will be funded has yet to be established. The technology is not yet generating power anywhere in the world”
I am fascinated with the way that the media continues to obediently trot out the official dogma that small nuclear reactors are the new great white hope – for everything – jobs, reduce carbon emissions, revitalise the economy, cheap, clean, plentiful energy, – blah blah. The interesting thing is that, in the midst of their enthusiasm, some respectable news outlets occasionally now slip in a little bit of doubt.
A couple of examples of doubt from the UK.:
Guy Taylor, Transport and Infrastructure Correspondent at City A.M. enthuses over a “hotly anticipated tender“ surrounding the development of Small Modular Reactors (SMR)’s in the UK. A micro reactor project in Wales will bring energy for 244,000 UK homes – “will pump around £30m into the local economy”.
But he also mentions that “the tech is still in the early stages and faces a myriad of hurdles.”
Ian Weinfass, in Construction News gives a positive, optimistic, story on this micro nuclear reactor development, but clearly states that the company (Last Energy) “has yet to obtain licensing and planning approvals for its technology.“ He tellingly concludes “How the new fleet of SMRs will be funded has yet to be established. The technology is not yet generating power anywhere in the world”
However, don’t fret, little nuclear rent-seekers! Most of the media is still obedient, and they know which side their bread is buttered on . Sion Barry, writing in Wales Online, describes the same “24/7 clean energy” project as “of national significance“. There’s a reassuring note about wastes, and the barest mention of “planning and licensing approvals“. Business Green discusses the Last Energy plan as “clean energy” – modules assembled “like a LEGO kit” and designed to be fabricated, transported, and assembled within 24 months”
News media, on the whole, are happy to uncritically trot out a nuclear company’s line – as we find this same project touted in Reuters, in Power, Sustainable Times, in New Civil Engineer. On Google News today, there are 15 similar articles, with only Yahoo! News including a tad of doubt about local public reaction.
And by the way, Tom Pashby in New Civil Engineer also adds to the joy by telling us that the company involved, Last Energy is working with Nato on military applications of micro-reactors.
NuScale Power Is Great. Here’s Why You Shouldn’t Buy It.

The Motley Fool, By Reuben Gregg Brewer – Sep 14, 2024
NuScale Power (SMR 12.17%) is at the leading edge of the nuclear power sector. It is doing great things and making important progress toward its goal of mass-producing small-scale modular nuclear reactors. In a world increasingly looking toward carbon-free energy sources, it is positioning itself well for a bright future. But it won’t be a good fit for every investor. Here’s why you might want to buy the stock and why you might not want to buy it.
NuScale is moving (slowly) toward the nuclear future
Today, nuclear reactors are giant infrastructure assets that cost huge sums of money to build and years of effort to get up and running. NuScale Power is working to upend that inefficient model by offering small, modular reactors that would be built in a factory and then delivered where they are needed.
If one reactor isn’t enough, they can be linked to create a larger reactor………….
Adding to the allure here is a balance sheet with zero debt and $136 million in cash. In other words, it is working from a strong financial position. Also, NuScale Power’s largest shareholder is Fluor (FLR 2.21%), a large construction company.
Clearly, Fluor has its own motives in backing NuScale, like supporting the growth of a new market (small-scale nuclear power plant construction), but it means that NuScale has a strong parent to help it along. That’s showing up right now, too, as a project from Fluor is going to help add revenue to NuScale’s earnings statement, helping the upstart nuclear power company pay for its own product development plans.
There are indeed some good reasons to like the future prospects for NuScale power, including that, as management likes to highlight, it is “the only SMR certified by the U.S. Nuclear Regulatory Commission.” So, it basically has a leg up on the competition right now.
NuScale Power comes with some big risks
Despite the positives, NuScale Power is not going to be a good fit for every investor. In fact, only aggressive types should really be looking at the stock today. There are a host of reasons.
For starters, NuScale Power’s product plans are approved by U.S. regulators, but not fully approved to the point where it can start building and selling units. So, there’s more work to be done before NuScale Power even has a product to sell. And while it has inked a tentative deal to sell its first units, it can’t actually do that yet. It has to spend even more money on the effort to get the final government nod to start building and delivering a product.
That, in turn, means more red ink. NuScale Power is basically still in start-up mode, so it isn’t unusual that more money would be going out the door than coming in. The revenue from the work with Fluor will help, but the income statement is likely to look ugly for years to come. That’s because it will still have to ramp up its production abilities even after it gets all the approvals it needs. All in all, NuScale Power has a great story, but that story is still in its early chapters.
NuScale Power is an acquired taste
To highlight the risks here, it helps to look at the stock price. Over the past year, the stock has gone from a low of roughly $2 per share to a high of just over $15, and it currently sits at around $7. If you can’t handle price swings like that, you definitely don’t want to own this nuclear power start-up.
That said, investors with a high tolerance for risk might be interested in NuScale power, given that it has achieved a great deal on its path to producing small-scale modular nuclear reactors. But for most investors, the risks are likely too great at this point in time to justify hitting the buy button. https://www.fool.com/investing/2024/09/14/nuscale-power-is-great-heres-why-you-shouldnt-buy/
Why SMRs Are Taking Longer Than Expected to Deploy
Oil Price, By Felicity Bradstock – Sep 14, 2024
“…………………………………………..Several energy companies and startups, such as Terrapower – founded by Bill Gates, are developing SMR technology. The founders of Terrapower decided the private sector needed to take action in developing advanced nuclear energy to meet growing electricity needs, [?] mitigate climate change and lift [?] billions out of poverty.
Several SMR projects are also being backed by government financing. For example, in the U.S., the Department of Energy announced $900 million in funding to accelerate the deployment of Next-Generation Light-Water SMRs. In addition, many companies, such as Microsoft, have signed purchase agreements with energy companies to use SMRs, or are developing their own SMR strategies, to power operations with [?]clean energy.
While there is huge optimism around the deployment of SMR technology, many of the companies developing the equipment have faced a plethora of challenges, which has led to delays and massive financial burdens. At present, only three SMRs are operational in the world, in China and Russia, as well as a test reactor in Japan. Most nuclear energy experts believe SMRs won’t reach the commercial stage in the U.S. until the 2030s.
NuScale cancelled plans to launch an SMR site in Idaho in 2023 after the cost of the project rose from $5 billion to $9 billion owing to inflation and high interest rates. This is a common issue, as companies must predict the costs of a first-of-a-kind project. Once one SMR site is launched and companies can establish tried-and-tested methods of deployment, a second site is expected to be cheaper and faster to develop. A trend that will continue as companies gain more experience. Eric Carr, the president of nuclear operations at Dominion Energy, explained, “Nobody exactly wants to be first, but somebody has to be.” Carr added, “Once it gets going, it’s going to be a great, reliable source of energy for the entire nation’s grid.”
Another issue is access to uranium. Russia is currently the only commercial source of high-assay low- enriched uranium (HALEU), which companies require to power their reactors. In late 2022, Terrapower announced it would be delaying the launch of its first SMR site in Wyoming due to a lack of fuel availability. However, the U.S. is developing its domestic production capabilities. The Biden administration is expected to award over $2 billion in the coming months to uranium enrichment companies to help jumpstart the supply chain. Meanwhile, Terrapower announced this summer that it is finally commencing construction on its Wyoming SMR site and is working with other companies to develop alternate supplies of HALEU. https://oilprice.com/Energy/Energy-General/Why-SMRs-Are-Taking-Longer-Than-Expected-to-Deploy.html
Small Modular Nuclear Reactors (SMRs) in Canada

While civil society opposition to SMRs is broad and substantial in Canada, ultimately the exorbitant cost of SMRs will be their undoing. Conclusive analysis shows that SMRs cannot compete economically with wind, solar and storage systems.
SMRs will last as long as governments are willing to pour public funds into them, and SMRs will start to disappear after the money tap is turned off. Already the nuclear hype in Canada is turning back to big reactors.
WISE/NIRS Nuclear Monitor, August 29, 2024 | Issue #918, By Brennain Lloyd and Susan O’Donnell
Introduction: CANDUs versus SMRs
Canada developed the CANDU reactor, fueled with natural uranium mined in Canada and cooled and moderated with heavy water. All 19 operating power reactors in Canada – 18 in Ontario on the Great Lakes and one in New Brunswick on the Bay of Fundy – are CANDU designs with outputs ranging from about 500 to 900 MWe.
It’s been more than 30 years since the last CANDU was completed and connected to the grid in Canada. Attempts to build new ones were halted over high projected costs, and CANDU exports have dried up. To keep itself alive, in 2018 the nuclear industry launched a “roadmap” to develop smaller reactors and kick-start new nuclear export opportunities.
From 2020 to 2023, the Canadian government funded six so-called “Small Modular Nuclear Reactor” (SMR) designs. Only one – Terrestrial Energy’s Integral Molten Salt Reactor (IMSR) design – is Canadian.
The six designs are not only unlike the CANDU but also different from each other. The fuels range from low-enriched uranium, TRISO particles and HALEU (High-Assay, Low-Enriched Uranium) to plutonium-based fuel, and the different cooling systems include high-temperature gas, molten salt, liquid sodium metal and heat pipes. One design – Moltex – requires a separate reprocessing unit to extract plutonium from used CANDU fuel to make fuel for its proposed SMR.
Only one of the grid-scale SMR designs seems plausible to be built – the GE Hitachi 300 MWe boiling water reactor (BWRX-300) being developed at the Darlington nuclear site on Lake Ontario. This design uses low-enriched uranium fuel and is cooled by ordinary water. The Darlington site owner, the public utility Ontario Power Generation (OPG), is planning to build four of them.
Canada gave OPG a $970 million “low-interest” loan to help develop the BWRX-300 design. The other five SMR designs received considerably less federal funding, from $7 million to $50.5 million each, and most SMR proponents have been struggling to source matching funds. One design, Westinghouse’s off-grid eVinci micro-reactor, had early development costs funded by the U.S. military and now seems to have independent funding.
The Canadian Nuclear Laboratories (CNL) at Chalk River received more than $1.2 billion in 2023. CNL is operated by a private-sector consortium with two U.S. companies involved in the nuclear weapons industry and the Canadian firm Atkins-Réalis (formerly SNC Lavalin) which is also involved in almost every SMR project in Canada. CNL and Atomic Energy of Canada Limited are building an “Advanced Nuclear Materials Research Centre” at Chalk River, one of the largest nuclear facilities ever built in Canada, that will conduct research on SMRs.
Canada recently released a report suggesting that SMRs will be in almost all provinces by 2035, although most provincial electrical utilities have expressed no interest, and only Ontario, New Brunswick, Saskatchewan and Alberta are promoting SMRs. Alberta says it wants SMRs to reduce the GHG emissions generated in tar sands extraction.
SMR “project creep”
Proponents of most of the SMR designs keep changing the description of their projects. This is not unique to Canada, but is certainly apparent in Canada, and the regulator, the Canadian Nuclear Safety Commission (CNSC), aids and abets that practise for those SMRs in the review stream.
In the case of the BWRX-300 proposed for the Darlington site, the CNSC not only accepted a 2009 environmental assessment for very different reactors as a stand-in for the BWRX-300 but also is carrying out the current review as if for a single reactor. The nuclear regulator made this decision despite Ontario Power Generation very publicly stating its intent to construct four reactors in rapid succession at the Darlington site.
The proposed “Micro Modular Reactor” (MMR) for the Chalk River site in Ontario is another example of “project creep” and demonstrates just how flexible “scope of project” is in the domain of the CNSC.
Earlier this year, CNSC staff released a document outlining communications from the MMR proponent, Global First Power, describing significant project changes. The proponent wants to triple power output, and to operate with fuel enrichment levels from 9.75% (LEU+) up to 19.75%.
Global First Power also wants a shift from no need to refuel in a 20-year operating life to provision for on-site refueling and defueling with periods varying from three to 13.5 years. They also want to double their facility design life from 20 years to 40 years.
Despite all these significant changes to key elements of the design, the CNSC staff concluded that the Global First Power MMR project remained within scope of its initial (very different) description.
Another example of SMR project creep is in New Brunswick. In June 2023, the provincial utility NB Power applied to the CNSC for a licence to clear a site for the ARC-100 design at the Point Lepreau nuclear site on the Bay of Fundy. The design for the sodium-cooled reactor requires HALEU fuel, which is scarce because of sanctions imposed on Russia, the sole supplier.
News reports have suggested the ARC-100 design might need to change because changing the fuel means changing the design. Meanwhile the ARC company CEO left suddenly, and staff received layoff notices. Despite these obvious problems, the application under CNSC review and a provincial environmental assessment underway with the CNSC are continuing with the original design.
SMRs complicate radioactive waste management

One of the (many) false promises floated about SMRs is that they will alleviate the significant challenges of managing radioactive wastes. This is patently false. Some of this misleading rhetoric stems from the notion of “recycling” and claims by some SMR promoters that their particular design of reactor will use high-level radioactive wastes as “fuel” for their reactor.
But the reality is that the introduction of so-called “next generation” designs of reactors in Canada will only complicate the already complex set of problems related to the caretaking of these extremely hazardous materials.
……………………………………………..The shift from natural uranium to enriched uranium in commercial power reactors in Canada will fundamentally change the nature and characteristics of the spent fuel waste and will take away one of the nuclear industry’s favourite pitch points for the CANDU design: that there is no potential for criticality after the fuel is removed from the reactor.
The new potential for the irradiated enriched fuel wastes to “go critical” is only one of the many problems being overlooked by both government and industry.
Another very obvious shift is in the dimensions of the fuel, from the relatively uniform dimensions of CANDU fuel to the widely divergent shapes and sizes of fuel being depicted for the various small modular reactor designs.
The CANDU fuel bundles are approximately 50 cm long and 10 cm in diameter. In contrast, the fuel waste dimensions are significantly different for SMRs. For example, the BWRX-300 fuel bundles are much larger, the casks much heavier, and the reactor will generate higher level activity wastes. These differences will require different approaches and designs for interim and long-term dry storage of used fuel.
SMR wastes not considered in Canada’s repository design
As a fleet, small modular reactors will generate more waste per energy unit than the larger conventional reactors that preceded them. But in Canada they will also require redesign of the “concept” plan currently being promoted for the long-term dispositioning of the used fuel to a deep geological repository (DGR).
Since 2002 an association of the nuclear power companies, operating as the Nuclear Waste Management Organization (NWMO), have been pursuing a single site to bury and then abandon all of Canada’s high-level nuclear waste.
Their siting process, launched in 2010, caught the interest of 22 municipalities that allowed themselves to be studied for the “$16-24 billion national infrastructure project.” Hundreds of millions of dollars later – with tens of millions going directly into the coffers of the participating municipalities – the NWMO is now down to two candidate sites in Ontario.
The NWMO say they will make their final selection by the end of 2024. But even at this late date they have produced only “conceptual” descriptions of their repository project, including for key components such as the packaging plant where the fuel waste would be transferred into that final container, and the DGR itself. But all of the conceptual work is premised on the characteristics and dimensions of the CANDU fuel bundle.
The process lines of the used fuel packaging plant, the final container, and the spacing requirements for the repository will all need to be redone for different SMR wastes with their very different dimensions and characteristics.
While it could be said that the NWMO design progress has been surprisingly slow given their target of selecting a site this year and beginning the regulatory and licensing process next year, it will be back to square one if their proposed DGR is to accommodate SMR wastes.
There is, however, a strong possibility that the regulator, the CNSC, will allow the NWMO to skate through at least the first license phase with large information gaps, as the CNSC is doing with the plan to construct four BWRX-300s at the Darlington site.
As mentioned in the example of “project creep,” earlier this year the CNSC announced it would accept an environmental assessment approval of a generic 2009 reactor proposal instead of requiring that the BWRX-300 be subject to an impact assessment. This was despite the marked differences between the technologies assessed in 2009 and the BWRX-300 technology.
These differences will impact the management of the project’s radioactive waste. For example, the BWRX-300 public dose rates are estimated to be 10 x higher for one accident scenario (pool fire) and 54% higher in a dry storage container accident, the waste contains different proportions of radionuclides than the waste that was assessed in 2009, radio-iodine and carbon-14 emissions will be higher, alpha and beta-gamma activity per cubic metre of waste will be higher and the BWRX-300 will generate higher activity spent fuel.
Despite the NWMO having successfully wooed two small municipalities, there is broad opposition to the transportation, burial and abandonment of all of Canada’s high-level radioactive wastes in a single location, either in the headwaters of two major watersheds in northern Ontario or the rich farm lands of southwestern Ontario.
This opposition is amplified by concerns about SMR wastes and the NWMO’s open ticket to add other operations to their DGR site. Of particular concern are the potential for the NWMO to add an SMR to power their repository site or even to add a reprocessing plant at the site to extract plutonium from the used fuel. The Canadian government’s refusal to include an explicit ban on commercial reprocessing in the 2022 review of the national radioactive waste policy heightened the latter concern.
Who/what is behind the SMR push in Canada?
Although proponents claim that SMRs will contribute to climate action, critics are sceptical. It is doubtful that any SMR will be built in time to contribute to Canada’s target to decarbonize the electricity grid by 2035, and independent research found that SMRs will cost substantially more than alternative sources of grid energy.
The high cost and lengthy development timelines of SMRs, the questionable claims of climate action, as well as the significant challenges related to SMR wastes, raises an obvious question: who is pushing SMRs and why?
A central reason is a political imperative to keep the Canadian nuclear industry alive. The industry is small in Canada, but nuclear power looms large in the political imagination. Canada sees itself as a global leader in the peaceful use of nuclear energy.
Without a nuclear weapons industry, Canada needs nuclear exports to keep its domestic industry alive and ensure Canada’s membership in the international nuclear club. Earlier this year, Canada released an action plan to get nuclear projects built faster and ensure that “’nuclear energy remains a strategic asset to Canada now and into the future.”
Since the start of the nuclear age, Canada has spent a disproportionate amount of research funding on nuclear reactor development. Politicians see the CANDU design as a success, despite its costly legacy and lackluster exports. The CANDU reactors in Canada have all required significant public subsidies, and the CANDUs sold for export have been heavily subsidized by Canada as well.
Selling more CANDUs outside Canada is unlikely in the foreseeable future. But Canada wants a nuclear industry, and that requires choosing and aggressively marketing at least one nuclear reactor design. Despite being a U.S. design, the G.E. Hitachi BWRX-300 is the chosen favourite in Canada. The reactor, in early development at the Darlington site, is being promoted globally by Ontario Power Generation as part of an international collaboration with GE Hitachi Nuclear Energy, the Tennessee Valley Authority, and Synthos Green Energy.
What’s the future for SMRs in Canada?
Since the nuclear industry and its government partner Natural Resources Canada (NRCan) launched their SMR roadmap in 2018, the political and business hype for SMRs has been intense. The SMR buzz is meant to attract private sector investment, but so far that strategy is failing.
Almost everyone understands now that SMRs, like the CANDUs, are expensive projects that will need continuous massive public subsidies. To date, taxpayers have provided just over $1.2 billion in direct subsidies to SMR proponents in Canada, not nearly as much as the industry will need to develop an SMR fleet in the country.
A broad coalition of groups – from climate activists to Indigenous organizations and other groups protecting lands and waters from radioactive waste – have been pushing back against public funding for SMRs. A 2020 statement signed by 130 groups called SMRs “dirty, dangerous distractions” from real climate action. In March this year, 130 groups in Canada also signed the international declaration against new nuclear energy development launched in Brussels at the Nuclear Summit organized by the International Atomic Energy Agency.
While civil society opposition to SMRs is broad and substantial in Canada, ultimately the exorbitant cost of SMRs will be their undoing. Conclusive analysis shows that SMRs cannot compete economically with wind, solar and storage systems.
SMRs will last as long as governments are willing to pour public funds into them, and SMRs will start to disappear after the money tap is turned off. Already the nuclear hype in Canada is turning back to big reactors.
The Bruce Nuclear Generating Station on Lake Huron in Ontario, with eight CANDU reactors, is already the largest operating nuclear plant in the world. Bruce Power recently began the formal process to develop four new big reactors at the site, to generate another 4,800 megawatts of electricity. It remains to be seen if the sticker shock for the proposed big nuclear reactors will, like it has for SMRs, scare off investors.
Although more than six years of SMR promotion in Canada has produced almost no private investor interest, the SMR buzz remains strong. The SMR star may be fading but the SMR story is far from over.
Brennain Lloyd is the coordinator of Northwatch in Ontario. Susan O’Donnell is the lead researcher for the CEDAR project at St. Thomas University in New Brunswick and a spokesperson for CRED-NB. https://crednb.ca/small-modular-nuclear-reactors-smrs-in-canada/
Nuclear power on the prairies is a green smokescreen.

By M. V. Ramana & Quinn Goranson, August 19th 2024, Canada’s National Observer https://www.nationalobserver.com/2024/08/19/opinion/nuclear-power-prairies-green-smokescree
On April 2, Alberta Premier Danielle Smith declared on X (formerly Twitter) “we are encouraged and optimistic about the role small modular reactors (SMRs) can play” in the province’s plans to “achieve carbon neutrality by 2050.”
SMRs, for those who haven’t heard this buzzword, are theoretical nuclear reactor designs that aim to produce smaller amounts of electricity compared to the current reactor fleet in Canada. The dream of using small reactors to produce nuclear power dates back to the 1950s — and so has their record of failing commercially.
That optimism about SMRs will be costing taxpayers at least $600,000, which will fund the company, X-Energy’s research “into the possibility of integrating small modular reactors (SMRs) into Alberta’s electric grid.” This is on top of the $7 million offered by Alberta’s government in September 2023 to oil and gas producer Cenovus Energy to study how SMRs could be used in the oil sands.
Last August, Saskatchewan’s Crown Investments Corporation provided $479,000 to prepare local companies to take part in developing SMRs. Alberta and Saskatchewan also have a Memorandum of Understanding to “advance the development of nuclear power generation in support of both provinces’ need for affordable, reliable and sustainable electricity grids by 2050”.
What is odd about Alberta and Saskatchewan’s talk about carbon neutrality and sustainability is that, after Nunavut, these two provinces are most reliant on fossil fuels for their electricity; as of 2022, Alberta derived 81 per cent of its power from these sources; Saskatchewan was at 79 percent. In both provinces, emissions have increased more than 50 per cent above 1990 levels.
It would appear neither province is particularly interested in addressing climate change, but that is not surprising given their commitment to the fossil fuel industry. Globally, that industry has long obstructed transitioning to low-carbon energy sources, so as to continue profiting from their polluting activities.
Canadian companies have played their part too. Cenovus Energy, the beneficiary of the $7 million from Alberta, is among the four largest Canadian oil and gas companies that “demonstrate negative climate policy engagement,” and advocate for provincial government investment in offshore oil and gas development. It is also a part of the Pathways Alliance that academic scholars charge with greenwashing, in part because of its plans to use a problematic technology, carbon capture and storage, to achieve “net-zero emissions from oilsands operations by 2050.”
Carbon capture and storage is just one of the unproven technologies that the fossil fuel industry and its supporters use as part of their “climate pledges and green advertising.” Nuclear energy is another — especially when it involves new designs such as SMRs that have never been deployed in North America, or have failed commercially.
X-energy, the company that is to receive $600,000, is using a technology that has been tried out in Germany and the United States with no success. The last high-temperature, gas-cooled reactor built in the United States was shut down within a decade, producing, on average, only 15 per cent of what it could theoretically produce.
Even if one were to ignore these past failures, building nuclear reactors is slow and usually delayed. In Finland, construction of the Olkiluoto-3 reactor started in 2005, but it was first connected to the grid in 2022, a thirteen-year delay from the anticipated 2009.
Construction of Argentina’s CAREM small modular reactor started in February 2014 but it is not expected to start operating till at least the “end of 2027,” and most likely later. Both Finland and Argentina have established nuclear industries. Neither Alberta nor Saskatchewan possess any legislative capacity to regulate a nuclear industry.
What Alberta and Saskatchewan are indulging in through all these announcements and funding for small modular nuclear reactors is an obstructionist tactic to slow down the transition away from fossil fuels. Discussing nuclear technology shifts attention from present and projected GHG emissions, while enabling a ramp-up of fossil fuel reliance in the medium-term and delaying climate action into the long-term.
Floating the idea of adding futuristic SMR technology into the energy mix is one way to publicly appear to be committed to climate action, without doing anything tangible. Even if SMRs were to be deployed to supply energy in the tar sands, that does not address downstream emissions from burning the extracted fossil fuels.
Relying on new nuclear for emission reductions prevents phasing out fossil fuels at a pace necessary for the scientific consensus in favour of rapid and immediate decarbonization. An obstructionist focus on unproven technologies will not help.
Quinn Goranson is a recent graduate from the University of British Columbia’s School of Public Policy and Global Affairs with a specialization in environment, resources and energy. Goranson has experience working in research for multiple renewable energy organizations, including the CEDAR project, in environmental policy in the public sector, and as an environmental policy consultant internationally.
M.V. Ramana is the Simons Chair in Disarmament, Global and Human Security and Professor at the School of Public Policy and Global Affairs, at the University of British Columbia in Vancouver. He is the author of The Power of Promise: Examining Nuclear Energy in India (Penguin Books, 2012) and “Nuclear is not the Solution: The Folly of Atomic Power in the Age of Climate Change” (Verso Books, 2024).
Small Modular Nuclear Reactors (SMRs)- Dirty Dangerous Distractions from Real Climate Action.

Dale Dewar, 21 July 24
The current hype about Small Modular Nuclear Reactors (SMRs) is that they are safe, carbon neutral, emissions’ free, have no effect upon the environment or human health, have little or no waste and are essential to address the threat of climate change. Nuclear industry executives claim that these ingenious things can be built and running within the next decade.
No nuclear power plant has ever been built on time or within budget. What of the other claims?
Safety. In order to make this claim, the nuclear industry overlooks the effects of radioactivity on both the environment and human health. Catastrophic accidents are ignored. Who speaks for the children? Over 60 research papers identify an increase in leukemia in children in the vicinity of nuclear power plants.
Carbon neutral. Do claims of carbon neutrality include mining, refining, trucking, enriching, fuel rod manufacture, site construction, decommissioning, and waste management? To be fair, these should be included in other sources of energy as well, but enrichment itself is an unusually energy-intensive process.
Emissions’ free. Nuclear power plants release radioactive gasses as a regular part of their operations and sometimes by accident. Tritium is a particularly noxious emission because it can be incorporated into every cellular function and structure in biological organisms. It is likely the culprit in the increased incidence of leukemia in children. Other gasses include krypton and radon. Minute amounts of cesium-137, strontium-90, iodine-131 and carbon-14 are also found in the released gas.
No effect upon the environment. Reactors that use water as their coolant return the water to the rivers and lakes at a higher temperature. A cascade of effects involves fish populations, algae growth and changed mineral content. The proposed SMR for Saskatchewan is a Boiling Water Reactor which will require coolant.
No effect upon human health. A prominent scientific panel in the United States which periodically reviews ionizing radiation and health stated in 2005 that “the smallest dose has the potential to cause a small increase in risk” of cancer in humans.
Have little or no waste. While the volume of waste may be small, it is not easily contained. Recycling, reprocessing and pyroprocessing are not simple processes, nor are they “clean”. Locations where they have been done remain extremely contaminated. (eg. Mayak in Russia and Hanford in the USA). Furthermore, the treatment removes only the plutonium which is an extremely small proportion of the waste.
Essential to address climate catastrophe. Nothing could be further from the truth. Countries that have avoided the nuclear energy money pit have been able to address their carbon footprint with new and innovated ways to provide their energy needs. The belief that it would provide “baseload” energy is a myth at best because it cannot be powered up and down in the nimble fashion required.
Up and running within the decade. SMRs are a new technology (or an old, discarded technology being brushed off for new sales) and, based upon the record to date, even less likely to fulfill this promise.
Why are the Canadian and United States governments pouring federal tax dollars into the nuclear industry? We are already committed to over $50 million and Premier Moe says the commitment will go to $5 billion! What is the attraction?
The “Nuclear Age” was ushered into being for production of atomic bombs. Nuclear power was an afterthought. With the USA and the UK “modernizing” their nuclear arsenal, we should not overlook the possibility that plutonium extraction is still the motivating factor. It is our tax money that’s funding this project. Is this what we want?
Nuclear Free Local Authorities challenge UK government on New Cleo’s application for “justification” of its small nuclear “fast” reactor

2 In April 2024, the Nuclear Industry Association applied for
‘justification’ on behalf of NewCleo and its lead-cooled LFR-AS-200 fast
reactor to the Department for Environment, Food and Rural Affairs (DEFRA).
The department will support the future Secretary of State in their role as
the authority responsible for the ‘justification’ decision.
This was the first application for ‘justification’ for a so-called advanced modular
design in the UK. In its media release, NewCleo oozed confidence its
reactor design will meet with approval:
‘Justification’ is a regulatory
process which requires a Government decision before any new class or type
of practice involving ionising radiation can be introduced in the UK. A
justification decision is one of the required steps for the operation of a
new nuclear technology in the UK, but it is not a permit or licence that
allows a specific project to go ahead.
Instead, it is a generic decision
based on a high-level evaluation of the potential benefits and detriments
of the proposed new nuclear practice as a pre-cursor to future regulatory
processes.
The design failed the government’s readiness test to be entered
into the Generic Design Assessment (GDA). Even if justification is
forthcoming, with the design not selected for the GDA, it would surely have
to undergo an equally rigorous, but more uncertain, process.
Furthermore, the reactor operates using MOX (mixed uranium and plutonium reprocessed
fuel). Although, the press has previously reported NewCleo’s plan ‘to
take advantage of the UK’s massive stockpile of waste at Sellafield, where
it wanted to invest £2bn in a waste reprocessing factory and advanced
modular reactors that would have created around 500 jobs’, the government’s
recently published Civil Nuclear Roadmap makes clear that this material
will not be forthcoming: ‘We are providing clarity to vendors by
committing not to support the use of plutonium stored at Sellafield by
Advanced Nuclear Technologies whilst high hazard reduction activities are
prioritised at Sellafield’.
The other puzzle is X-Energy, which was given
£3.4m by government, but seemingly, like NewCleo, has been turned down for
consideration for a GDA. X-Energy have previously announced plans to deploy
its reactor design at a site in Hartlepool.
In response to the news, NFLA
Scotland Advisor Pete Roche and Emeritus Professor of Energy Policy at the
University of Greenwich Stephen Thomas put together a question set
exploring and challenging the justification and Generic Design processes.
This was sent by the NFLAs to Nuclear Minister Andrew Bowie. On receiving
the Minister’s response, a second letter with supplementary questions was
drafted and sent, and this has just been replied to by a senior Department
of Energy Security and Net Zero (DESNZ) official. The correspondence is
reproduced in this briefing for your information.
NFLA 16th July 2024
EDF’s Nuward U-turn shows risk of betting on Small Nuclear Reactors – analysts

(Montel) French utility EDF’s decision to ditch the design of its Nuward small modular reactor (SMR)in France shows the risk of expecting too much of the nuclear technology – with delays to the project expected, analysts told Montel.
too many technical uncertainties, analysts said.
(Montel) French utility EDF’s decision to ditch the design of its Nuward small modular reactor (SMR)in France shows the risk of expecting too much of the nuclear technology – with delays to the project expected, analysts told Montel.
Montel News, by: Muriel Boselli, Sophie Tetrel , 03 Jul 2024
“SMRs must remain a possibility for keeping a nuclear fleet in the long term but they cannot be the pillar of a reliable electricity strategy at this stage,” said Nicolas Goldberg of Colombus Consulting. “Hence the need for electric renewables, which should not be overlooked.”
France is relying on SMRs as part of a broader plan to spur its nuclear power industry and lower carbon emissions.
In 2022, president Emmanuel Macron announced plans to invest EUR 1bn by 2030 in the development of small modular reactors, with EUR 500m going to Nuward.
Technical difficulties
EDF confirmed media reports on Tuesday that it was scrapping its SMR design due to technical difficulties. The company wanted to “move towards a design built exclusively from proven technological building blocks”, a spokeswoman told Montel.
The market had been sceptical about the project as there were too many technical uncertainties, analysts said.
“This announcement allows us to be a little less involved in utopian and rhetorical discussions about nuclear power and to return to something much more technical, which brings us back to the limits of SMRs at the moment,” said Franck Gbaguidi, an analyst at Eurasia Group…………………………..
Safety adaptation
Ditching the design meant EDF would have to adapt the safety plan it submitted to France’s ASN nuclear safety authority last July, an ASN spokeswoman said.
The Nuward project has been in development since 2019, managed by a consortium of companies including EDF, Naval Group, TechnicAtome, the French Alternative Energies and Atomic Energy Commission (CEA), Framatome and Tractebel. Construction was scheduled to start in 2030
The Nuward project has been in development since 2019, managed by a consortium of companies including EDF, Naval Group, TechnicAtome, the French Alternative Energies and Atomic Energy Commission (CEA), Framatome and Tractebel. Construction was scheduled to start in 2030.
France is currently developing 11 SMR projects and the nuclear development has been backed by right and far-right political parties. In April, the start-up Jimmy said it had submitted a request to the ecology ministry for authorisation of a pair of 170 MW capacity SMRs it hopes to build in France after the European Commission approved EUR 300m in state aid for the project.
In December last year, the company said it would stick with its SMR plans in Europe despite American firm NuScale Power scrapping its plan to build SMRs in the US. https://montelnews.com/news/2edd2bd8-fa29-4629-95f9-c876c1e4e6ce/edfs-nuward-u-turn-shows-risk-of-betting-on-smrs-analysts
Second review of ARC’s Small Modular Nuclear Reactor not complete, despite layoffs

That’s after ARC Clean Technology Canada said it downsized with that review now over
Telegraph Journal, Adam Huras, Jul 04, 2024
A second design review of a New Brunswick-based company’s proposed small modular nuclear reactor is not yet complete, according to the Canadian Nuclear Safety Commission.
That’s after ARC Clean Technology Canada said it downsized with that review now over.
Brunswick News reported last month that ARC, one of two companies pursuing SMR technology in the province, had handed out layoff notices to some of its employees, citing its latest design phase coming to an end.
That’s as its CEO also departed.
But the Canadian Nuclear Safety Commission says it’s “months” away from completing its review, and may need more information from the company.
“We have received all of ARC’s major submissions as part of the vendor design review process and our experts are carefully reviewing them,” commission spokesperson Braeson Holland told Brunswick News.
“It is possible that staff will have additional questions for the vendor. In that case, additional information may be requested, and the company will be expected to provide it for the vendor design review to proceed.
“Provided that any additional information requested is submitted in a timely manner and that the company remains in compliance with its service agreement with the Canadian Nuclear Safety Commission, we anticipate that the review will be complete within several months.”
A vendor design review is an optional service that the commission provides for the assessment of a vendor’s reactor design.
The objective is to verify, at a high level, that Canadian nuclear regulatory requirements and expectations, as well as Canadian codes and standards, will be met.
The company did complete a Phase 1 review of its ARC-100 sodium-cooled fast reactor in October 2019.
An executive summary of that review, made public by the commission, noted that there were requests for additional information, as well as technical discussions through letters, emails, meetings and teleconferences, after an initial submission.
The result of that first review found that “additional work is required by ARC” to address findings raised in the review, specifically around the reactor’s management system.
It then lists a series of technical concerns, but concludes that “these issues are foreseen to be resolvable.”
A Phase 2 design review, which ARC is undergoing right now, goes into further detail, and focuses on identifying fundamental barriers to licensing for a new design in Canada, according to the commission.
That review started in February 2022, and was expected to be completed in January of this year.
It’s unclear why it has yet to be completed.
At a New Brunswick Energy and Utilities Board hearing last month into a recent power rate hike, NB Power vice president Brad Coady testified he doesn’t expect SMRs will be ready by an original target date of 2030.
The utility now believes they’ll be ready by 2032 or 2033……………….
https://tj.news/new-brunswick/second-review-of-arcs-smr-not-complete-despite-layoffs
French nuclear giant scraps SMR plans due to soaring costs, will start over.

Another Small Modular Nuclear Reactor project goes down the toilet
This time it’s that great nuclear poster boy France that is facing the humiliation and embarrassment of wasting billions on “New Nuclear”
Last time it was the USA with the NuScale fiasco
Giles Parkinson Jul 2, 2024, https://reneweconomy.com.au/french-nuclear-giant-scraps-smr-plans-due-to-soaring-costs-will-start-over/
The French nuclear giant EdF, the government owned company that manages the country’s vast fleet of nuclear power stations, has reportedly scrapped its plans to develop a new design for small nuclear reactors because of fears of soaring costs.
EdF, which is now fully government owned after facing potential bankruptcy due to delays and massive cost over-runs at its latest generation large scale nuclear plants, had reportedly been working on a new design for SMRs for the last four years.
The French investigative outlet L’Informé reported on Monday that EdF had scrapped its new internal SMR design – dubbed Nuward – because of engineering problems and cost overruns. It cited company sources as saying EdF would now partner with other companies to use “simpler” technologies in an attempt to avoid delays and budget overruns.
Reuters confirmed the development, citing an email from a company spokesman that confirmed the program had been abandoned after the basic design had been completed.
“The reorientation consists of developing a design built exclusively from proven technological bricks. It will offer better conditions for success by facilitating technical feasibility,” an EDF spokesperson told Reuters via email.
Continue readingUnable to effectively operate its lone existing nuclear reactor, New Brunswick is betting on advanced options.

The International Panel found that sodium-cooled reactors proved expensive to build, complex to operate, prone to malfunctions, and difficult and expensive to repair. Sodium reacts violently with water and burns if exposed to air. Major sodium fires have occurred in previous reactors, often leading to lengthy shutdowns.
If NB Power needs outside assistance with a conventional reactor it has owned and operated for more than 40 years, one might question the wisdom of building two more featuring untested designs. Mr. Holland’s replacement as energy minister, Hugh Flemming, must now decide how comfortable he is with the province’s SMR ambitions.
Perhaps the most fundamental risk to New Brunswick’s SMR push is that the province can’t afford it.
MATTHEW MCCLEARN, JULY 2, 2024 https://www.theglobeandmail.com/business/article-new-brunswick-nuclear-reactor-technology-arc-clean-moltex-energy/
Mike Holland was among Canada’s leading evangelists for small modular nuclear reactors. During his tenure as New Brunswick’s energy minister, from 2018 to when he stepped down on June 20, he vigorously supported plans by the province’s Crown utility, NB Power, to construct two different small reactor designs from startup companies: U.S.-based ARC Clean Technology and Britain’s Moltex Energy. This represents Canada’s most ambitious – and perhaps riskiest – foray into bleeding-edge nuclear technology.
In an interview shortly before he resigned to pursue an opportunity in the private sector, Mr. Holland recalled how SMRs arrived on his agenda soon after he assumed office. He began exploring what advanced reactors could mean for decarbonizing the province’s electricity sector and growing its economy, and concluded New Brunswick could become a hub for nuclear design and manufacturing, and export reactors around the world.
“I saw the opportunity for New Brunswick to not just participate, but be a leader in this,” he said. “I am someone that loves to be on the cutting edge.”
His enthusiasm and risk tolerance proved a boon for ARC and Moltex, two tiny startups that have neither licensed nor constructed a commercial reactor. Under Mr. Holland’s leadership, New Brunswick became an incubator and helped the companies attract government funds to continue their work.
But NB Power is already struggling with persistent problems at its lone existing reactor at Point Lepreau Nuclear Generating Station. It has been negotiating a partnership with Ontario Power Generation that could see the latter assume partial ownership and help fix the ailing plant.
If NB Power needs outside assistance with a conventional reactor it has owned and operated for more than 40 years, one might question the wisdom of building two more featuring untested designs. Mr. Holland’s replacement as energy minister, Hugh Flemming, must now decide how comfortable he is with the province’s SMR ambitions.
Unconventional thinking
Nearly all of the more than 400 nuclear reactors operating today use water to cool their highly radioactive cores. Water also acts as a “moderator,” slowing down the high-energy neutrons produced by nuclear fission. Though water-cooled reactors have dominated for decades, they cost huge sums to build and produce waste that remains hazardous for countless human lifetimes. They’re vulnerable to severe (albeit rare) accidents that can render surrounding areas uninhabitable.
Virtually every SMR is marketed as addressing these and other shortcomings – and most have ditched water as coolant and moderator.
According to documents released by New Brunswick’s energy ministry through the province’s freedom of information legislation to researcher Susan O’Donnell, and provided to The Globe and Mail, in 2017 NB Power reviewed dozens of SMRs it read about in nuclear industry publications. It came up with a short list of five, which it later narrowed to ARC and Moltex, and enticed both companies to set up headquarters in Saint John.
ARC and Moltex are pursuing what the industry calls “fast” neutron reactors, so named because they lack a moderator. The ARC-100 reactor would be cooled using liquid sodium metal and consume enriched uranium metal fuel. Moltex’s Stable Salt Reactor-Wasteburner (SSR-W), meanwhile, would use molten salt fuel placed in fuel assemblies similar to those in conventional reactors.
The SSR-W would require its own fuel reprocessing plant called WATSS (short for Waste to Stable Salt), which would convert Point Lepreau’s spent fuel into new fuel. For NB Power, that’s a major attraction: As of last summer, Point Lepreau had more than 170,000 Candu spent fuel bundles. Moltex says that’s enough to power its reactor for 60 years.
In May, 2019, NB Power sent a letter to Mr. Holland and Premier Blaine Higgs urging them to support fast reactors. The utility told its government masters that there was enough room at Point Lepreau for both reactors and that they could be up and running by 2030.
“These two technologies have different market applications and there is no downside to letting both of them work through the process,” the letter stated.
New Brunswick’s latest energy plan suggests electricity consumption will nearly double in the next few decades. NB Power’s challenge is to satisfy that demand while simultaneously reducing greenhouse gas emissions; Lori Clark, its chief executive, has cast SMRs as playing an important role in the utility’s efforts to reach net zero by 2035.
What New Brunswick covets most, however, is a shot of economic adrenalin.
Even optimists expect that SMR demonstration units will be too expensive to be economically attractive. Multiple units must be built to exploit economies of scale and reduce costs.
NB Power is counting on that. According to documents released under the federal Access to Information Act, the utility expects the first ARC-100 would be followed by 11 more units by mid-century. By then, up to 24 would be built in Canada, and the same number in other countries. And the first SSR-W would lead to 11 more built across Canada and two dozen more in the United States, Britain and Eastern Europe. If that happened, they’d be among the most successful models in history.
NB Power thought more than half of the components would be manufactured in New Brunswick. It also enthused about royalty payments on reactor sales, “potentially worth billions of dollars.”
Technical risks
But to realize any of that, New Brunswick’s SMR program must overcome technical challenges that have plagued the nuclear industry from its earliest days.
Edwin Lyman, a physicist at the Union of Concerned Scientists, has warned policy makers about the pitfalls of betting on “advanced” reactor designs, which he has studied over many years. “Developing new designs that are clearly superior to light water reactors overall is a formidable challenge, as improvements in one respect can create or exacerbate problems in another,” he wrote in a 2021 report.
Fast reactors, which originated in the earliest years of the nuclear age, bear this out. The U.S., Britain, the Soviet Union, France, Germany, Japan and India all pursued so-called “fast breeder” reactors that could produce more plutonium fuel than they consumed. A report that examined the history of those reactors, produced in 2010 by the International Panel on Fissile Materials, a group of arms control and non-proliferation experts, found member countries of the Organization for Economic Co-operation and Development collectively invested about US$50-billion researching breeder reactors. Outside the OECD, Russia and India also spent heavily.
They didn’t have much to show for it. According to the International Atomic Energy Agency, there are only two fast reactors currently generating electricity – both in Russia. The International Panel found that sodium-cooled reactors proved expensive to build, complex to operate, prone to malfunctions, and difficult and expensive to repair. Sodium reacts violently with water and burns if exposed to air. Major sodium fires have occurred in previous reactors, often leading to lengthy shutdowns.
As for molten salt reactors, there have only been two experimental exemplars, the most recent of which operated in the 1960s. Mr. Lyman’s 2021 report said molten salts were highly corrosive to many materials typically used in reactor construction. Moreover, “liquid nuclear fuels introduce numerous additional safety, environmental and proliferation risks.” Molten salt reactors likely couldn’t be built before the 2040s at the earliest, he concluded.
In addition to confronting such technical challenges, New Brunswick’s strategy also presupposes that reprocessing of spent fuel will be permitted and affordable. But a report published last year by the Nuclear Waste Management Organization, the industry-controlled organization tasked with disposing of Canada’s reactor waste, was skeptical on both counts.
NB Power is also counting on circumstances that are beyond its control. According to a letter signed by former CEO Keith Cronkhite in 2020 and released under the Access to Information Act, New Brunswick’s plan hinges on Ontario and other provinces building multiple BWRX-300s. (The letter was sent to Prime Minister Justin Trudeau.) If they do not, “SMR companies based in New Brunswick will not be able to attract private investment necessary to ever deploy a new reactor,” Mr. Cronkhite’s letter predicted.
The SMR plan is already falling behind schedule. At a rate hearing in June before the New Brunswick Energy and Utilities Board, Brad Coady, vice-president of strategic partnerships and business development, said NB Power believes it is no longer possible to have SMRs operating by 2030; the earliest date for the first unit has been pushed back to 2032 or 2033.
Delays will have consequences, because NB Power needs options to replace its coal-fired generation while at the same time satisfying growing demand for electricity. The utility, he said, has been studying alternative scenarios “if we don’t have them in time.”
Paying for it
Perhaps the most fundamental risk to New Brunswick’s SMR push is that the province can’t afford it.
Last year, ARC and Moltex each estimated that developing their reactors would cost around $500-million per company. NB Power is Canada’s most heavily indebted utility, and its budgets must be approved by the province’s Energy and Utilities Board. It has limited ability to pay for crucial early steps such as studies necessary to establish what the environmental consequences of the SMRs might be. In published reports, NB Power has acknowledged that its research and development efforts might have to be sacrificed to meet debt-reduction targets.
David Coon, leader of New Brunswick’s Green Party, said NB Power faces huge capital spending to retire its Belledune coal-fired generating plant and refurbish its Mactaquac hydroelectric dam and transmission lines.
“That is why they’re really not putting much into this,” he said. “Their approach has been, well, if we get a new nuclear plant out of this that that doesn’t really cost us much of anything, then bonus!”
ARC and Moltex also don’t have the money. In late June, ARC parted ways with CEO William Labbe and laid off an undisclosed number of staff – a move some observers said was likely due to a shortage of funds. Mr. Chronkite’s 2020 letter warned that the two SMR developers were small startups that couldn’t afford to do work using their own resources, and were at immediate risk of insolvency.
“Without federal support this year to the SMR developers in New Brunswick, one or both companies are expected to close their offices in the next year,” Mr. Cronkhite’s letter stated.
Indeed, New Brunswick officials have counted on continuing and generous support from Canadian taxpayers. In his letter, Mr. Cronkhite called on the federal government to provide $70.5-million that year to ARC and Moltex – and more than $100-million the following year – to “keep the SMR development option in New Brunswick viable.” In 2022, the two companies would need another $91-million.
Ottawa obliged, but only partly. It gave Moltex $50.5-million in 2021. The federal government also provided ARC $7-million last year. The lobbying efforts continue: When NB Power board vice-chair Andrew MacGillivray received his mandate letter in May, 2023, it instructed him to “support efforts to acquire federal funding” for the SMRs.
New Brunswick’s own history suggests the risks inherent in counting on boundless federal support.
Andrew Secord, an economics professor at St. Thomas University in Fredericton, has studied decision-making in the 1970s that led to the construction of the original Point Lepreau reactor. In a 2020 paper, he detailed how Point Lepreau arose in part from an export-led strategy under which multiple large reactors would be built and their electricity exported to New England. NB Power (then known as the New Brunswick Electric Power Commission, or NBEPC) first focused on building interconnections with New England and then pivoted to building reactors.
This strategy failed by 1972, but by that point NBEPC was unwilling to change course. Over the next three years, it assumed ever greater risks as potential partners failed to materialize.
“NBEPC managers continued along the nuclear path, exhibiting higher risk behaviour in the process,” Mr. Secord wrote. “As NBEPC executives spent more time and resources on the nuclear option, their personal attachment and the associated institutional commitment increased.”
Mr. Coon said New Brunswick’s SMR plan so far has cost the provincial and federal governments only around $100-million. But it could start costing taxpayers and ratepayers “much more money” if things progress further.
“It seems like we haven’t learned our lesson in New Brunswick,” he said.
Small Modular Nuclear Reactors cost concerns challenge industry optimism

Reuters, Paul Day, Jun 27, 2024
Concerns over the potential cost of small modular reactors (SMRs) and the electricity they produce continue to cast a shadow over growing optimism for new nuclear.
Proponents say that the recent faltering history of large nuclear projects missing schedules and running over budget are just teething problems for a new industry in the midst of a difficult economic climate.
However, critics claim it as proof that nuclear is not economically viable at all, and it will take too long faced with pressing climate issues.
There is little doubt that new nuclear will, at least initially, be more expensive to develop, build, and run than many are hoping.
New Generation IV reactors, such as SMRs, are likely to produce hidden costs inherent in the development of first-of-a-kind technology, while high commodity and building material prices, stubbornly high inflation, and interest rates at levels not seen for decades are adding to mounting expenses for the new developers.
NuScale’s cancelled deal to supply its SMRs to a consortium of electricity cooperatives due to rising power price estimates prompted The Breakthrough Institute’s Director for Nuclear Energy Innovation Adam Stein to write that advanced nuclear energy was in trouble.

Speaking during an event at the American Nuclear Society (ANS) 2024 Annual Conference in June, Stein said nothing had changed to fix the fundamental challenges nuclear faces since he wrote that in November, but there was a greater sense of urgency.
“Commodity prices have come down slightly, though interest rates are largely still the same and those are risks, or uncertainties, that are outside of the developer’s control,” Stein said during an event at the American Nuclear Society (ANS) 2024 Annual Conference.
“Until those can be considered a project risk, instead of unknown uncertainties, they are not going to be controlled at all and can drastically swing the price of any single project.”
Enthusiastic hype
These criticisms clash with growing enthusiasm (critics say ‘hype’) surrounding the new technology.
Twenty two countries and 120 companies at the COP28 conference in November vowed to triple global nuclear capacity by 2050, and developers are making sweeping promises about the capabilities and affordability of their latest creations, many of which will not be commercially available in North America or Europe until the early 2030s.
SMRs, defined as reactors that generate 300 MW or less, cost too much, and deployment is too far out for them to be a useful tool to transition from fossil fuels in the coming 10-15 years, according to a recent study by the Institute for Energy Economics and Financial Analysis (IEEFA).
“SMRs are not going to be helpful in the transition. They’re not going to be here quick enough. They’re not going to be economic enough. And we really don’t have time to wait,” says co-author of the study Dennis Wamsted.
Existing SMRs in China (Shidao Bay), Russia (floating SMR such as the Akademik Lomonosov), and in Argentina (the still under-construction CAREM) have all cost significantly more than originally planned, the IEEFA says in the study ‘Small Modular Reactors: Still too expensive, too slow, and too risky.’
Construction work on the cutting-edge CAREM project has been stalled since May due to cost-cutting measures by Argentina’s President Javier Milei, the head of National Atomic Energy Commission (CNEA) told Reuters.
The billions of dollars the U.S. and Canadian governments are pouring into nuclear power through subsidies, tax credits, and federally funded research, would be better spent on extra renewables, Wamsted says.
Some 260,000 MW of renewable energy generation, mostly solar, is expected to be added to the U.S. grid just through to 2028, the study says citing the American Clean Power Association, way before any new nuclear is expected to be plugged in.
“Federal funds to nuclear is, in our opinion, a waste of time and money,” says Wamsted.
High uncertainty…………………………………………….
https://www.reutersevents.com/nuclear/smr-cost-concerns-challenge-industry-optimism
Are the prospects for Small Modular Reactors being exaggerated? Five key characteristics examined

June 11, 2024 by Ed Lyman, Ed Lyman is Director, Nuclear Power Safety, at the Union of Concerned Scientists
Small Modular Reactors (SMRs) are being presented as the next generation of nuclear technology. While traditional plants face cost overruns and safety issues, SMRs are seen by their champions as cheaper, safer, and faster to deploy. But Ed Lyman at UCS cites evidence that cast these claims into doubt.
In five sections of this article, he lists the reasons why. SMRs are not more economical than large reactors. SMRs are not generally safer or more secure than traditional large light-water reactors. SMRs will not reduce the problem of disposal of radioactive waste. SMRs cannot be counted on to provide reliable and resilient off-the-grid power (for facilities like data centres, bitcoin mining, hydrogen or petrochemical production). SMRs do not use fuel more efficiently than large reactors.
And where problems might be ironed out over time, the learning cycle of such technology is measured in decades during which costs will remain very high. SMRs may have a role to play in our energy future, says Lyman, but only if they are sufficiently safe and secure, along with a realistic understanding of their costs and risks.
Even casual followers of energy and climate issues have probably heard about the alleged wonders of small modular nuclear reactors (SMRs). This is due in no small part to the “nuclear bros”: an active and seemingly tireless group of nuclear power advocates who dominate social media discussions on energy by promoting SMRs and other “advanced” nuclear technologies as the only real solution for the climate crisis. But as I showed in my 2013 and 2021 reports, the hype surrounding SMRs is way overblown, and my conclusions remain valid today.
Unfortunately, much of this SMR happy talk is rooted in misinformation, which always brings me back to the same question: if the nuclear bros have such a great SMR story to tell, why do they have to exaggerate so much?
What are SMRs?
SMRs are nuclear reactors that are “small” (defined as 300 megawatts of electrical power or less), can be largely assembled in a centralised facility, and would be installed in a modular fashion at power generation sites. Some proposed SMRs are so tiny (20 megawatts or less) that they are called “micro” reactors. SMRs are distinct from today’s conventional nuclear plants, which are typically around 1,000 megawatts and were largely custom-built. Some SMR designs, such as NuScale, are modified versions of operating water-cooled reactors, while others are radically different designs that use coolants other than water, such as liquid sodium, helium gas, or even molten salts.
To date, however, theoretical interest in SMRs has not translated into many actual reactor orders. The only SMR currently under construction is in China. And in the United States, only one company — TerraPower, founded by Microsoft’s Bill Gates — has applied to the Nuclear Regulatory Commission (NRC) for a permit to build a power reactor (but at 345 megawatts, it technically isn’t even an SMR).
The nuclear industry has pinned its hopes on SMRs primarily because some recent large reactor projects, including Vogtle units 3 and 4 in the state of Georgia, have taken far longer to build and cost far more than originally projected. The failure of these projects to come in on time and under budget undermines arguments that modern nuclear power plants can overcome the problems that have plagued the nuclear industry in the past.
Developers in the industry and the US Department of Energy say that SMRs can be less costly and quicker to build than large reactors and that their modular nature makes it easier to balance power supply and demand. They also argue that reactors in a variety of sizes would be useful for a range of applications beyond grid-scale electrical power, including providing process heat to industrial plants and power to data centres, cryptocurrency mining operations, petrochemical production, and even electrical vehicle charging station
Here are five facts about SMRs that the nuclear industry and the “nuclear bros” who push its message don’t want you, the public, to know.
1. SMRs are not more economical than large reactors. 2. SMRs are not generally safer or more secure than large light-water reactors. 3. SMRs will not reduce the problem of what to do with radioactive waste. 4. SMRs cannot be counted on to provide reliable and resilient off-the-grid power for facilities, such as data centers, bitcoin mining, hydrogen or petrochemical production. 5. SMRs do not use fuel more efficiently than large reactors
Continue readingU.S. Micro Nuclear Reactors happy to join with NATO military

Last Energy and NATO enter micro-nuclear energy partnership
The Engineer, Jason Ford, 04 Jun 2024
The NATO Energy Security Centre of Excellence (ENSEC COE) and Washington, DC-based Last Energy are jointly investigating military applications for micro-nuclear power technologies
The partnership also intends to explore opportunities for future deployment on NATO military installations.
The research and development partnership, signed by Last Energy CEO Bret Kugelmass and NATO Energy Security Centre of Excellence director Colonel Darius Uzkuraitis, marks the first agreement between the NATO Energy Security Centre of Excellence and a nuclear energy company………………. https://www.theengineer.co.uk/content/news/last-energy-and-nato-enter-micro-nuclear-energy-partnership
Energy buffs give small modular reactors a gigantic reality check

John Ketchum, CEO of nuclear power firm NextEra, has even said SMRs were nothing but “an opportunity to lose money in smaller batches”
Before signing any contract for an SMR, just get a fixed price in writing. If a developer won’t agree to it, they probably don’t have faith in their own estimates.
Too expensive, slow, and risky for investors, and they’re taking focus off renewables, say IEEFA experts
Brandon Vigliarolo, Mon 3 Jun 2024 , https://www.theregister.com/2024/06/03/small_modular_reactor_criticism/
Miniature nuclear reactors promise a future filled with local, clean, safe zero-carbon energy, but those promises quickly melt when confronted with reality, say a pair of researchers.
Known as small modular reactors, or SMRs, miniaturized atomic power plants have been touted as a way to ensure the world meets climate change mitigation goals as fossil fuels are phased out in favor of renewables and nuclear sources.
With a few SMR projects built and operational at this point, and more plants under development, the Institute for Energy Economics and Financial Analysis (IEEFA) concludes in a report that SMRs are “still too expensive, too slow to build, and too risky to play a significant role in transitioning away from fossil fuels.”
IEEFA doesn’t have many data points to pull from, with only three SMRs actually online around the world – one in China and two in Russia. A fourth, in Argentina, is still under construction and perfectly illustrates the point IEEFA researchers try to make: It’s running far over cost and is facing budget constraints that could affect its future.
The other three SMRs have run into similar issues. They’ve all been way more expensive than initially agreed upon, and proposals for SMRs in the US face related issues, the report finds.
Per-kilowatt hour costs for SMRs proposed in the US by NuScale, the first company to receive US regulatory approval for SMRs, have more than doubled since 2015. Costs projected by X-Energy and GE-Hitachi for their SMRs have similarly risen since initial proposals.
In most cases, these costs are rising before the US Nuclear Regulatory Commission has even given its approval, IEEFA notes.
Pick none: Fast, good, low risk
If the cost of an SMR were high but the risk low, or if construction were quick, it might be worth considering further development. The report finds that SMRs are neither cheap, quick, nor reliable.
Along with those costs, IEEFA research points out that none of the SMRs built so far have come anywhere close to meeting proposed construction timelines. The two Russian units were supposed to be built in three years, but both took 13. The Shidao Bay SMR in China was estimated as a four-year project but took 12, while the ongoing CAREM 25 in Argentina was also proposed as a four-year development but has so far taken 13.
Similarly optimistic construction estimates have consistently shown up in US SMR project development presentations,” the report notes. Without speed or value to rely on, one would hope that an SMR project was at least low risk, but that doesn’t appear to be the case either.
Leaders at two nuclear power companies whose quotes are carried in the report “endorsed nuclear power in the abstract” as a way to transition away from fossil fuels, but both expressed concern over the investment risk.
John Ketchum, CEO of nuclear power firm NextEra, has even said SMRs were nothing but “an opportunity to lose money in smaller batches” at this point in time, which was cited in the report. Chris Womack, CEO at Southern Company, which recently finished building the first new US nuclear reactor this century, similarly expressed concerns about expanding his company’s nuclear portfolio.
Quit hogging the energy transition spotlight
The report’s data makes it seem like there’s not a lot going for SMRs, but “loud and persistent” advocates for the technology have managed to capture the spotlight anyway, say report authors David Schlissel, IEEFA director of resource planning analysis, and Dennis Wamsted, IEEFA energy analyst.
“A key argument from SMR proponents is that the new reactors will be economically competitive,” said Schlissel. “But the on-the-ground experience with the initial SMRs that have been built or that are currently under construction shows that this simply is not true.”
Meanwhile, all the time, energy, and money spent constructing SMRs is taking resources away from renewables that work, and would work now, the duo said. It’s also likely that, even though SMR operators intend their reactors to be complementary to other power sources on the grid, they’re far more likely to do the opposite, the report concludes – especially given the rise in construction costs and the need to break even.
“Developers bringing multibillion-dollar SMRs onto the electric grid would have every incentive to run them as much as possible,” the report surmises. “The less they run, the more their per megawatt-hour costs rise and the harder it will be for them to compete in the market.”
“Having invested billions, it is unlikely developers will willingly cycle their plants to accommodate renewables,” the report adds.
While some have predicted it might take a decade to get SMR technology to the point where it’s reliable, Schlissel and Wamsted believe the mini-reactors will continue to be too expensive, slow, and risky to play a reliable role in fossil fuel transition in the next 15 years. That said, developers are still going to push for the projects, so the pair reckon there’s a few things prospective buyers and investors should ensure – like crafting restrictions into contracts that prevent delays and risking costs from being pushed onto ratepayers.
Schlissel and Wamsted make several more recommendations for how to keep SMR projects from becoming too costly or blocking renewables, but the best one is the simplest: Before signing any contract for an SMR, just get a fixed price in writing. If a developer won’t agree to it, they probably don’t have faith in their own estimates.
Wamsted appears to have little faith SMR developers would agree to those terms.
“The comparison between building new SMRs and building renewable energy couldn’t be clearer,” Wamsted said of the pair’s recommendations. “Regulators, utilities, investors, and government officials should acknowledge this and embrace the available reality: Renewables are the near-term solution.”
-
Archives
- October 2026 (265)
- September 2026 (339)
- August 2026 (330)
- July 2026 (355)
- June 2026 (287)
- May 2026 (306)
- April 2026 (356)
- March 2026 (251)
- February 2026 (267)
- January 2026 (308)
- December 2025 (358)
- November 2025 (359)
-
Categories
- 1
- 1 NUCLEAR ISSUES
- business and costs
- climate change
- culture and arts
- ENERGY
- environment
- health
- history
- indigenous issues
- Legal
- marketing of nuclear
- media
- opposition to nuclear
- PERSONAL STORIES
- politics
- politics international
- Religion and ethics
- safety
- secrets,lies and civil liberties
- spinbuster
- technology
- Uranium
- wastes
- weapons and war
- Women
- 2 WORLD
- ACTION
- AFRICA
- Atrocities
- AUSTRALIA
- Christina's notes
- Christina's themes
- culture and arts
- Events
- Fuk 2022
- Fuk 2023
- Fukushima 2017
- Fukushima 2018
- fukushima 2019
- Fukushima 2020
- Fukushima 2021
- general
- global warming
- Humour (God we need it)
- Nuclear
- RARE EARTHS
- Reference
- resources – print
- Resources -audiovicual
- Weekly Newsletter
- World
- World Nuclear
- YouTube
-
RSS
Entries RSS
Comments RSS



