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Britain can’t cope with nuclear power It'll leave us in the dark

We're falling behind. Barry Lewis/InPictures via Getty Images.

We're falling behind. Barry Lewis/InPictures via Getty Images.


January 10, 2025   6 mins

In 2010, Nick Clegg made a fateful intervention against nuclear power. On the eve of becoming deputy prime minister, the then-Lib Dem claimed that building new reactors would take too long: they wouldn’t “come on stream” until about 2021 or 2022. Fast-forward to the autumn of 2022, and Clegg’s remarks were being ridiculed as evidence of Britain’s myopic governing class. Russia’s invasion of Ukraine had sent the cost of imported electricity through the roof — a problem that hasn’t gone away, and could soon spark outages right across the country. There is now a growing consensus that Clegg’s stance was not just wrong, but irresponsible. Given its potential to provide large volumes of clean, reliable electricity, nuclear is an obvious answer to Britain’s problem of energy security.

Yet Clegg’s critics never seem to mention the other arguments he made against nuclear energy: that new reactors tend to suffer from spiralling costs, and that “no one has got a workable answer to the dilemma of what you do with nuclear waste.” This points to a contradiction amid the new pro-nuclear fervour. While supporters castigate the British state for being negligent, slow, wasteful, and generally incompetent in its energy strategy, they also demand that this same state commit to a technology that requires high levels of competence over a long period of time. The rewards could be great, but the stakes are high, and our institutions hardly inspire confidence.

That the UK needs to drastically improve its energy situation is beyond doubt. Like many in the anti-nuclear camp, Clegg insisted that wind, solar and tidal power were the UK’s best path to energy independence. That is not exactly how things panned out. While Britain has enthusiastically cut down its production of fossil fuel energy, renewables have yet to fill the gap: electricity imports remain at a record high. It should be noted that a strategy based on renewables actually strengthens the case for nuclear. Not only are reactors low-carbon, they also generate electricity continuously, crucial when our weather can be so capricious.

Meanwhile, demand for electricity is growing rapidly.  The government estimates that it will be 50% higher by 2035, not least because decarbonising the economy means switching to electricity wherever possible. According to MIT, it takes 800 wind turbines, or 8.5 million solar panels, to match the energy output of an average nuclear reactor.

Little wonder, then, that recent years have seen renewed interest in nuclear power. After decades in the environmental wilderness, climate conferences are now signing countries up to a goal of tripling the planet’s nuclear capacity. Ministers are listening: over 60 nuclear reactors are currently under construction worldwide. That’s especially true in China, which really does take energy independence seriously, and plans to build no fewer than 90 over the next decade. Russia, for its part, wants 30 new reactors by 2050. Beijing and Moscow are both exporting their nuclear programmes to other countries, with the latter building reactors across Eurasia and striking deals in Africa. As for the United States, Warren Buffet, Bill Gates, Ken Griffin and Peter Thiel are among the big-name investors who now have a stake in nuclear.

Much of the hype is focused on new technology. Some reactors use “pebbles” filled with coated uranium particles instead of the traditional rods. Evidence from China suggests that this can avert meltdowns like the 2011 Fukushima disaster. In Jiangsu and Texas, meanwhile, new reactors won’t just make electricity, but also provide factories with heat energy. But the greatest excitement surrounds Small Modular Reactors. As the name suggests, SMRs aim to alleviate the biggest obstacles to nuclear power: massive upfront costs and long construction times. Though they will produce about a third of the electricity of an average reactor, optimists think they could one day be assembled in two years at a cost of around $1 billion each.

What about Britain? Alas, there are more serious hurdles than the short-termism demonstrated by Clegg. Nuclear power has, after all, enjoyed plenty of backers here, among them Tony Blair, George Osborne and Boris Johnson. At last year’s election, it was endorsed in the manifestos of both main parties. No matter. All but one of the country’s existing reactors will be retired by the end of this decade. Somerset’s Hinkley Point C, started in 2016, was meant to be finished next year. Instead the government is still looking for investors to cover the mounting costs of the project, which is now due in 2031. And when the reactor does eventually start producing electricity, it won’t be cheap — likely double the current wholesale price. At the same time, Keir Starmer is also struggling to drum up private backing for a new reactor, Sizewell C in Suffolk. The site was declared suitable in 2009 but is still awaiting an investment decision.

More evidence, in other words, that Britain specialises in very expensive infrastructure, so long as it doesn’t have to be built efficiently or indeed even finished. Nuclear projects have suffered from the usual problems of government dithering and wrangling with private partners. Interminable planning complications hardly help either. EDF, the French state-owned energy company, grumbles that British planners have demanded over 7,000 modifications to its reactor at Hinkley Point C, even though the design is already operational in France and Finland. The lethargy is self-perpetuating: time and cost overruns in one project make politicians more nervous about committing to the next, while hard-won skills and resources disappear before they can be used again.

Given the climate of bureaucratic paralysis and political inertia which has settled over Britain, it is difficult to imagine the state capitalising on any breakthroughs in nuclear technology. Indeed, as Andrew Orlowski points out, the government has managed the impressive feat of deliberately ruling out the most plausible candidate from its SMR competition — because the design was too advanced and therefore didn’t require support. The winner, naturally, will not be announced until 2029.

“Given the climate of bureaucratic paralysis and political inertia which has settled over Britain, it is difficult to imagine the state capitalising on any breakthroughs in nuclear technology.”

But as the authority of the British state continues to be sapped by its own dysfunction, it’s possible that a nuclear revolution will come, just from a different direction. A major reason for the renewed interest in nuclear power is the rise of AI, a technology with an enormous appetite for energy. The data centres underpinning AI software require vast amounts of electricity for processing and industrial air conditioning; a ChatGPT enquiry uses 10 times more electricity than a Google search. According to Bloomberg, the demand from data centres is outpacing electricity supply around the world; in London and southeast England, it is already squeezing the grid capacity needed to build new houses. By 2027, AI could consume as much electricity as Argentina; by 2030, more than India. These power supplies need to be constant, so renewables aren’t appropriate.

The upshot is that America’s big tech companies are suddenly poised to become patrons of nuclear energy. The US has had its own problems with building reactors in recent years, but given the wealth and political influence that Silicon Valley can bring to bear, this may well change. Already, Microsoft and Amazon have struck deals to buy electricity from existing nuclear plants. These companies, along with Google and others, are also pouring money into SMR development, together with investment firms like BlackRock and the Department of Energy. Some of these small reactors could be supplying electricity by the end of the decade.

In technology, as in politics, we are at an uncertain juncture, and artificial intelligence and SMRs may yet prove overhyped. But it seems entirely plausible that, in the coming years, America’s state-backed tech firms will be looking to export a new model of nuclear-powered AI infrastructure. It also seems plausible that a future British government, desperate for alternatives to a bankrupt and discredited state, will welcome the offer with open arms. This could resemble the situation in a country like Nigeria, where an unreliable grid means that data centres generate their own electricity. Or it could be the beginning of a new phase of privatisation, where involvement in the energy system allows corporate interests to extend their power into the very foundations of the state. In a precedent of sorts, Javier Milei, Argentina’s libertarian President, recently invited American investors to sponsor SMR-powered data centres in his own crisis-ravaged country.

Yet for all the putative benefits, from energy security to decarbonisation, the recent outbreak of pro-nuclear sentiment carries a strong element of herd mentality. It has emerged in part from a fantasy discourse about rebuilding Western civilisation through vague ideas like state capacity, industrial policy and “abundance” — altogether suggesting a nostalgia for the high modernist spirit of the post-war boom. Now it’s also caught up with the tech industry’s messianic drive to develop AI. Such mass optimism can obscure the very real risks that still attend nuclear energy, even if new reactor designs are less likely to melt down.

As case in point, consider one of the most terrifying and strangely overlooked places in Britain. Sellafield, on the Cumbrian coast, is Europe’s largest nuclear waste dump. The site of the world’s first major commercial nuclear plant, which came online in 1956, it now stores thousands of tons of radioactive waste, some of it imported from other European countries. According to the Guardian, Sellafield is a catastrophe waiting to happen. Many of its storage facilities are aging, improvised and crumbling, with one silo leaking 2,000 litres of contaminated water each day. It has admitted to a number of dangerous cyber-security lapses. Maintaining, repairing and expanding this site is very expensive — over £2.7 billion annually — while the cost of eventually decommissioning it and moving the waste underground is approaching £150 billion.

The substances we are struggling to contain at places like Sellafield will remain radioactive for thousands of years, long after the companies and political systems operating today have passed into history. The urgent question, then, is whether a state that barely has the competence to build nuclear reactors should be entrusted with handling still greater quantities of nuclear waste.


Wessie du Toit writes about culture, design and ideas. His Substack is The Pathos of Things.

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Brendan O'Leary
Brendan O'Leary
7 hours ago

I was one peripherally involved in a proposed project to bury nuclear waste in deep wells in Caithness. My main memory was just how small the canisters of waste were, even with all their layers of protection. Hopefully there are better sources than the Guardian to help us assess just how serious the risks are. It could be that they are more political than physical.

Billy Bob
Billy Bob
6 hours ago

I’m sure somebody can correct me, but I was once told that all the nuclear waste America has ever produced could just about fit inside Wembley Stadium. No idea if it’s true or not

Lancashire Lad
Lancashire Lad
5 hours ago
Reply to  Billy Bob

Wouldn’t it ruin the pitch?

Saul D
Saul D
5 hours ago

It’s been obvious for 30 years (and people have been pointing it out for that length of time), that switching energy to electricity required at least a trebling of electricity production in order to absorb the energy requirements of space heating and transport.
It’s also been 100% obvious in that time period that solar and renewables do not deliver at the massive scale required, in the rapid timescale required. After 30 years we still only have about 30% of electricity (not all energy) from renewable sources, and only a portion of that is solar and wind. We’re also discovering that, instead of being the promised cheap electricity, it’s hugely more expensive than promised, requiring huge subsidies, complex financial contracts and guaranteed income – someone is making a fortune off this stuff.
In 30 years, if we’d prioritised nuclear power as a National Strategic Plan under Parliamentary prerogative, and thereby liberated the process from the onerous planning and environmental swamp, it would have been possible to build more rapidly, and therefore more cheaply, and in larger numbers. All that money spent on renewables would have gone towards cheap, abundant electricity – giving us low-cost energy to underpin the economy. Remember we knew this stuff 30 years ago, but instead environmental NGOs went for the low-tech answer, and worse, ended up forcing Germany to close its nuclear power plants, probably the biggest climate change crime ever (and they’re trying to force France to close their plants…).
We can still go nuclear. In 30 years, renewables only will be only marginally further ahead from now, as replacement and maintenance become a factor. And we would need all the renewables installed in the past 30 years, and then treble it, just to get to 100% electricity production at levels we have now. So instead, just go for large scale, mass production of nuclear power. If it’s really a climate emergency, then nuclear waste is a proven, manageable, relatively small-scale problem. And if it is an emergency, the thing to do it to build stuff you know works, not hope on some dream of a possible new technology in the future.

Buck Rodgers
Buck Rodgers
4 hours ago

F*ck me, this is a depressing time to be British

Andrew McDonald
Andrew McDonald
6 hours ago

‘… EDF, the French state-owned energy company, grumbles that British planners have demanded over 7,000 modifications to its reactor at Hinkley Point C, even though the design is already operational in France and Finland….’
That’s rich. Olkiluoto was about 15 years late and vastly overbudget; Flamanville roughly ditto, and both closed down for modification/maintenance almost as soon as they were finally ‘operational’.

The EPR design of these, Hinkley and Sizewell C has been declared ‘too complex’ for further commissioning by, er, EDF, who are ruling out any more, anywhere.

The financing deals for Hinkley and SZC (if it gets one) are beyond ludicrous from the consumers’ point of view, and the UK govt won’t even reveal the VFM basis (ha ha ha) on which they have plunged a few £bn into SZC to keep alive the illusion that it will provide any affordable energy much before 2045.

And the magic SMRs that will supplant these lumbering cash-wasters are still grinding through ONR design certification schemes, not straining at the leash to start delivering anything but promises backed by government subsidy. No free lunches after 25 years of government inaction and timidity, alas.

Norfolk Sceptic
Norfolk Sceptic
5 hours ago

Unfortunately, so true, and so predictable.

I’m sure it’s because Intelligence is believed to be a valid substitute for knowledge and experience, especially when it comes to STEM subjects, and an understanding of Business and Markets.

Ian Barton
Ian Barton
7 hours ago

Surely it’s only a matter of time before we start to employ some of Mr Musks technological ingenuity to get our nuclear waste safely in to space – then into the sun.

Last edited 7 hours ago by Ian Barton
Norfolk Sceptic
Norfolk Sceptic
5 hours ago
Reply to  Ian Barton

Nuclear has not been understood by those with political influence, for many years, probably because there are so few Engineers and Scientists with Whitehall and Westminster.

Nuclear Engineering, in fact, all Engineering, requires financial stability: canceling and restarting programmes, redefining project goals, and panicking about ‘Green Revelations’ has resulted in a dysfunctional industry, without any idea what is possible. The same could be said for many infrastructure projects.

LFTRs, by removing already radiated fuel from the reactor, can reduce the amount of very long lived, dangerous, radioactive isotopes.

It’s not that this statement is the answer to all our problems, it’s that most of those in influential positions within the political bubble have no understanding to follow the technical arguments involved in deciding what possibilities lay ahead.

Caradog Wiliams
Caradog Wiliams
2 hours ago
Reply to  Ian Barton

Sir David A would complain about this attitude.

Norfolk Sceptic
Norfolk Sceptic
56 minutes ago

Why?

Peter B
Peter B
2 hours ago

According to the Guardian, Sellafield is a catastrophe waiting to happen.”
So literally nothing to worry about then.

Ethniciodo Rodenydo
Ethniciodo Rodenydo
1 hour ago
Reply to  Peter B

According to Sellafield the Guardian is a catastrophe that has already happened and continues to happen

Pete Marsh
Pete Marsh
1 hour ago

Most of the high level nuclear waste is spent fuel rods. They still contain about 98% of their energy. They are in fact a valuable source of energy, but it’s currently cheaper to buy newly mined uranium rather than reprocess the ‘spent’ rods.
France does recycle them and I believe Russia can too, but the UK closed it’s reprocessing capabilities at Sellafield (under Blair I believe).
The last source I would use for information about nuclear energy is the Guardian, or maybe Greta Thunberg and chums…

Last edited 1 hour ago by Pete Marsh
John Tyler
John Tyler
1 hour ago

Had we, years ago, gone down the thorium route along with India, we would be far better off. Not only does it present fewer problems with waste, but also a wider range of rare elements (for medicine and hi-tech etc) and in greater quantities. It is also far safer than uranium as it requires input energy and is therefore far easier to shut down in an emergency. Naturally, it would have cost a lot, as India has found, but the engineering and physics challenges are reducing all the time and any nation that ignores its potential is just plain foolish!

Pete Marsh
Pete Marsh
37 minutes ago
Reply to  John Tyler

Thorium reactors can also make use of high level waste from Uranium reactors. Thorium itself is ‘fertile’ but not fissile, so the reaction can be kickstarted with some uranium waste (sic). There’s also about 3x more thorium than uranium so they can keep humanity going for centuries.
The future for nuclear is good, but with the low quality ‘elites’ we’re lumbered with I doubt the UK will be part of it.