Britain's first small modular reactors to be built in Wales
- Reference: 1763040354
- News link: https://www.theregister.co.uk/2025/11/13/anglesey_smr/
- Source link:
The £2.5 billion ($3.3 billion) project will initially deploy three Rolls-Royce SMR units capable of powering three million homes, with potential to expand to eight reactors.
Government-owned Great British Energy - Nuclear (GBE-N) plans to start construction in 2026 as part of the country's "clean energy superpower" mission.
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The timing problem is critical. The UK [2]urgently needs generation capacity to support its mandated shift to electric vehicles and plans for AI-hungry datacenters.
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AWS has called nuclear an "excellent source of zero-carbon, 24/7 power," but Alan Howard, principal analyst at Omdia, says commercially viable SMRs remain roughly a decade away.
"Operational SMRs appear to be on the near-term horizon a bit earlier than 2030," he said. "These announcements, at least in the US, are commonly test reactors which is the next development step. Omdia has talked with many power generation project developers and the consensus is that broad market acceptance and availability is likely around 2035, so about ten years out."
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"We hope we're wrong and we'll see better progress sooner, but from an infrastructure planning perspective this is the more pragmatic view," Howard added.
Datacenter developers are unable to wait for SMRs, and many are [6]looking to generate electrical power on-site for new datacenter campuses, typically using gas-fired turbines.
[7]Amazon spills plan to nuke Washington...with X-Energy mini-reactors
[8]Renewables blow past nuclear when it comes to cheap datacenter juice
[9]Small nuke reactors are really coming online by next year, US energy secretary insists
[10]Molten salt nuclear reactors slated to power Google datacenters in 2030
Rolls-Royce SMR selected in June from [11]four contenders , will build the reactors. CEO Chris Cholerton said the company would "deliver nuclear power very differently by utilizing modularization and a high level of factory build, therefore minimizing the impact on local people."
The Wylfa was acquired by GBE-N from engineering firm Hitachi early in 2024 for £160 million ($210 million), along with another nuclear plant at Oldbury in Gloucestershire.
The government is also considering further large-scale reactor projects beyond the current deployments at Hinkley Point C and the recently confirmed Sizewell C. GBE-N has been tasked with identifying suitable sites from all over the UK. Any such site would be expected to provide enough power for about six million homes. ®
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[2] https://www.theregister.com/2025/04/10/uk_ai_energy_council_meets/
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[6] https://www.theregister.com/2025/08/29/uk_dc_gas_install/
[7] https://www.theregister.com/2025/10/17/amazon_nuke_washington/
[8] https://www.theregister.com/2025/09/26/renewables_vs_smr_datacenter/
[9] https://www.theregister.com/2025/09/16/small_modular_reactors_2026/
[10] https://www.theregister.com/2025/08/18/google_smr_datacenters/
[11] https://www.theregister.com/2024/11/13/uk_smr_tender/
[12] https://whitepapers.theregister.com/
Sounds dystopian.
[...] will initially deploy three Rolls-Royce SMR units capable of powering three million homes, with potential to expand to eight reactors. [...] at Wylfa on Anglesey, an island off northwest Wales - but it won't generate power until the mid-2030s.
as per wikipedia -> Population (2024) Total 69,097
With 70k people living there right now, even a ten year viagra-only diet will leave them hard pressed to need power for three million homes, leave alone eight, by 2040.
Re: Sounds dystopian.
Google "Wylfa Data Centre (Prosperity Parc)", but ssshhhhhh!...... don't tell the locals...
Re: Sounds dystopian.
Anglesey is connected to the mainland by two bridges and ample power connections able to deliver power from the retired higher powered nuclear plant to the mainland.
The sparse population is seen as a cynical benefit if nuclear goes mushroom shaped.
Re: Sounds dystopian.
So if the SMR's go all Fukushima, just blow the bridges and tow it out into the Irish Sea?...
Re: Sounds dystopian.
Sure, I was aware of that.
Supposed to be a light attempt at humor, difficult audience here, judgeing by the downvotes..
otoh, anything remotely critical of nuclear power (or Britain in general) isn't really liked in here...
Re: Sounds dystopian.
Depends how you judge it, Seven.
A world-weary, slightly cynical riff on Britain's relative decline down the years will usually get you an upvote or two, especially if you reflect on past glories.
Nuclear power? Well us commentards are largely led by the evidence. The attitude to the last 70-odd years is generally "2 Level 7 incidents - not great, not terrible". But in my view all opinions are welcome. Even those Russian trolls I seem to attract.
I rather liked your tongue-in-cheek encouragement to have my country men take up Viagra (they did their bit in proving it's efficacy in the first place, after all). That said since my preference is for Cymraes rather than Cymro, I'm probably not the best person to opine.
"The timing problem is critical."
And HMGs of various colours have been faffing about for decades.
@Doctor Syntax
"And HMGs of various colours have been faffing about for decades."
Absolutely. Billions of 'investment' pissed up the wall for toys but no real interest in replacing and increasing power generation.
Re: @Doctor Syntax
I wonder if this can be marked as a benefit of Labour; the Conservatives on their performance over 40+ years would have signed with Westinghouse on the basis it was cheaper and that there was no UK manufacturer with a track record and similarly priced offering etc., then whinge about how poor UK manufacturing is by not being world class and thus able to compete with Westinghouse
Claim to fame
I visited Wylfa back in about 1980 (aged about 12). No sure how legal/official it was - my Dad was Deputy Mayor in Conwy, so when he was invited on a tour, I tagged along.
High point of the day was when the guide pointed out the switch that turned up the power output. Not sure if he was telling me to turn it or not, but I did. Much excitement before he turned it down again.
Big regret of the day is that I wasn't allowed to keep the radiation detection badge. Lunch was good though.
Re: Claim to fame
A-Level physics trip to Sellafield in 1991. My mate moved inside the full body radiation detector, when we were leaving the room where the flasks are opened and spent fuel rods removed. It measured his body radiation multiple times. An awful lot of alarms went off. There was quite a bit of urgent phone calling and consulting before the alarm got turned off and he was sent through again with a clean bill of health. Meanwhile muggins was the only one of the group left on the wrong side of the detector, waving a hand-held geiger counter over myself and wondering whether the red line had been set conservatively or whether there actually was a leak. Interesting trip. Lunch was good though - canteen did nice chips.
Re: Claim to fame
And your ability to de-materialise at will ever since has come in handy on a few occasions?...
Re: Claim to fame
Never set the alarm off even though have been in many of the Sellfield plants including standing on top of the Magnox Swarf Storage Silos (sometimes called "The most Dangerous Building in Britain). It's not the most dangerous, the Houses of Parliament are far more deadly.
These silos (22 of them) are the ones currently being emptied and the contents put into high integrity containers for burial.
https://www.gov.uk/government/news/sellafields-most-complex-clean-up-job-reaches-major-milestone
My personal claim to fame is finding certain out of date and life expired chemicals in a storage laboratory, these materials being shock sensitive as the inhibitor had evaporated. That one required the Bomb Squad to dispose of the materials.
http://corecumbria.co.uk/briefings/chemical-alert-brings-bomb-squad-to-sellafields-confined-separation-area/
It was put down to a couple of apprentices, but it was me :-D
Minimizing the impact
> the company would "deliver nuclear power very differently by utilizing modularization and a high level of factory build, therefore minimizing the impact on local people."
So all the skilled work and well-paid jobs will go to Derby while the Welsh just get to install the dangerous, radioactive bits?
Re: Minimizing the impact
Better than them being in Trumpistan…
powering homes
As commonly used in press releases, presumably for it's lack of meaning.
A house with gas heating?
A house with electric heating?
A house with a heat pump?
A house with an electric car or two?
Typical flack.
Omdia not Very Omniscent - SMRs are currently under construction in Canada
I can't find the Omdia report through Google, but if the quote given is representative of the report, then Omdia don't seem very aware of what is happening with SMRs.
A plant with four 300 MW SMR units started construction in Canada just east of Toronto last year. The first reactor is expected to start operation before 2030. This is for a utility customer who currently operate large nuclear reactors.
As for data centres building their own SMRs, I'll believe it when I see it. The AI bubble is about to pop and when that happens capital spending on data centres will get cut back drastically.
We still need reliable electric power to light our homes and businesses, and for an increasing number of people to charge our cars, and for that nuclear power will see increasing use. That I believe is where I expect to see most SMRs built, and these will like the reactors announced in this story be mainly designs based on conventional and well proven reactor technology scaled down and simplified rather than the exotic technologies many of the AI data centre operators talk about.
Happy to have a replacement at Chapelcross, Dumfriesshire. The still being decommissioned Magnox plant ceased generation operations in 2004.
https://en.wikipedia.org/wiki/Chapelcross_nuclear_power_station
Site self-evidently connected to the UK grid and with cooling water supply.
Shame SNP have blocked any new Nukes in Scotland.