Should the UK expand its nuclear power capacity as part of its future energy mix?
EnergyEnded 7 Oct

Should the UK expand its nuclear power capacity as part of its future energy mix?

Yes 81%No 19%1,562 votes cast

The UK currently has nine operational nuclear reactors with around 5.9 GW capacity, generating about 12-15% of electricity, but over 80% of this is due to close by 2030 as ageing AGR plants are decommissioned. The government is pursuing a target of 24 GW by 2050 through projects like Hinkley Point C (due online around 2030) and Sizewell C, plus support for small modular reactors, as part of efforts to achieve energy security and net zero while many existing stations enter decommissioning.

Jump to opinions· 54

Even among Yes voters, the case was often pragmatic rather than devotional: nuclear was “a back up” for renewables, or part of a “full mix of power options”. The most-respected Yes argument joined that urgency to frustration with delay, urging the country to “stop talking about it” and build.

That urgency came in different forms: energy security, reliable power and a sense that the UK had surrendered expertise. But support was not a blank cheque. One Yes voter warned that Hinkley Point C had “ballooned to nearly £50bn”; others called for simpler regulation, public ownership or tighter oversight.

The most-respected No case offered a compact alternative: “There are much cheaper, greener alternatives,” alongside investment in fusion research. Another No voter objected to the “legacy for future generations” from fission. The Yes arguments made the case for capacity and reliability, but did not settle how expansion could be delivered affordably—or who should pay.

The debate’s sharpest divide was less over whether clean energy matters than over which risks deserve priority: dependence on fossil fuels and imports, or the cost, waste and hazards of nuclear. For many Yes voters, the answer was a mix—with nuclear firmly in it.

“Yes clearly & should have been done a long time ago. Build nuclear (without bloody fish discos) & also roll out the small modular nuclear as well. We have the tech, we just have had a procession of hopeless govts who have undermined our energy supply and, thus, jobs and industry. We just need to stop talking about it, stop the environment agency mucking it all up And just get on with it”

YES case · PalatinusAugusti · 6 respects

“There are much cheaper, greener alternatives. We should however invest in strong R&D into Fusion tech.”

NO case · CalmVoter21 · 2 respects

81%
Yes
majority
19% No
Votes1,562
Skipped9
You—

% voting yes, by leaning

41% yes among H. Left voters, 44 of them
70% yes among Left voters, 209 of them
80% yes among C. Left voters, 186 of them
88% yes among Centre voters, 199 of them
94% yes among C. Right voters, 264 of them
98% yes among Right voters, 591 of them
99% yes among H. Right voters, 102 of them
H. Left
Left
C. Left
Centre
C. Right
Right
H. Right
Cite this result

refnation referendum, closed 7 October 2026: “Should the UK expand its nuclear power capacity as part of its future energy mix?” — Yes 81%, weighted by political leaning (1,562 votes).

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54 Opinions

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The Fiscal Plain-Speaker
Voted yesRight lean

Yes clearly & should have been done a long time ago. Build nuclear (without bloody fish discos) & also roll out the small modular nuclear as well. We have the tech, we just have had a procession of hopeless govts who have undermined our energy supply and, thus, jobs and industry. We just need to stop talking about it, stop the environment agency mucking it all up And just get on with it

AW84· 356
The Unmoved Humanitarian
Voted yesC. Left lean

We are: Close on renewables Behind on nuclear Behind on storage Behind on CCS - why 😭 Too dependent on gas (!) We gotta get: Hinkley C done Sizewell C started properly SMRs financed 10–20 GW more offshore wind Massive storage build-out Grid flexibility upgrades Mixed model, but oil & gas is the back up, back up, you hear! It's the year 2026. Why are we so slow!? Snails might evolve into the dominant species if we keep up at our lovely-resist-everything pace. ⭐️⭐️⭐ Edited

Bauhaus· 42
The Left-Wing Transport Reformer
Voted yesLeft lean

I feel like nuclear is essential to our carbon free future transition but I don't know how the private sector can possibly deliver it, or any major public works honestly. I think the government should set up a public company to deliver these future plants and just brute force it instead of tendering contracts and all the usual bull the British have to suffer when it comes to infrastructure projects. Please just get one done!

The Levelling Cosmopolitan
Voted yesLeft lean

I do not like nuclear anything. But needs must. I'd prefer wind solar and wave but you need a back up

redorav· 416
The Low-Tax Localist
Voted yesH. Right lean

I can see the left is as clueless today as it was 40 years ago when all this should have kicked off. There's an alternative timeline where most energy no longer depends on foreign wars and we've stopped relying on gas & petrol so much, but alas the opportunities were squandered building solar panels on perfectly arable land and destroying landscapes with wind turbines. So much for being green

The Welfare Brake
Voted yesC. Right lean

Of course! We all knew it 50 years ago!

The Peacemaker
Voted yesC. Left lean

YES Without doubt it's the only sensible answer to our energy issues. More importantly the UK should be investing heavily in the research around the 'fusion reactors'. Once these are working it's almost free energy. Which it's expected will happen within the next 5 to 10 yrs

The Polymath
Voted yesRight lean

We lost our leadership in this. We need to get it back, pronto. I started my career at the UKAEA at a site with 6 reactors (5 test beds and 1 on the grid). Now it does "clean energy innovation and decommissioning". Unless clean includes safe fusion and fission, that doesn't sound promising.

RAS· 272
The National Restorationist
Voted yesRight lean

Yes. Nuclear must be a major part of Britain's future energy mix. Build large reactors where appropriate, but accelerate a fleet of British-built SMRs: standardised designs, factory production and repeat builds rather than reinventing every station. Combine nuclear baseload with renewables, storage and domestic gas to create a resilient system. Energy security is national security, and SMRs give Britain an opportunity to rebuild sovereign nuclear engineering and manufacturing

Octig· 209
The Market-Minded Carer
Voted yesC. Right lean

Nuclear is very clean energy but fusion is better