The wars in Ukraine and the Middle East have pushed electrification to the forefront at COP31, and that directly puts nuclear power in the spotlight for countries like the UK that want low carbon electricity without relying on weather. For investors, this creates a clear theme around long term baseload power. This article walks through three UK focused nuclear energy stocks from our screener that tap into that story.
The three stocks highlighted here offer a compelling starting point if you want exposure to uranium producers and nuclear power operators for reliable and sustainable electricity. However, if you want the absolute best, these 17 nuclear renaissance stocks are the cream of the crop.
Rolls-Royce Holdings (LSE:RR.)
Overview:Rolls-Royce Holdings designs and services mission-critical power systems, including submarine nuclear reactors and small modular reactors, alongside civil and military aero engines.
Operations:The group generates about £11.8b from Civil Aerospace, £5.5b from Power Systems and £5.0b from Defence, plus smaller adjustments.
Market Cap:£104.0b
Rolls-Royce Holdings gives you exposure to the nuclear energy theme through its submarine reactors and small modular reactor program, wrapped inside a much broader aero engine and power systems group.
"Rolls-Royce SMR has secured multi-country selections and is already in execution for units in the UK, Sweden and the Czech Republic while aiming to commission up to 2 small modular reactors per year in the mid 2030s and up to 8 per year at maturity, creating a potential new source of high margin revenue and profit growth."
The durability of that opportunity rests heavily on what happens if a single key assumption about future project economics and funding conditions breaks.
If that core assumption is what you are testing, read the full narrative for Rolls-Royce Holdings to see how Rolls-Royce Holdings could accelerate or stall as the SMR story unfolds.
National Atomic Company Kazatomprom JSC (LSE:KAP)
Overview:National Atomic Company Kazatomprom JSC is a Kazakhstan based uranium producer that supplies nuclear fuel to power utilities worldwide.
Operations:The uranium division generates about KZT 1.70t, far exceeding the Ulba Metallurgical Plant and other activities at roughly KZT 0.39t combined.
Market Cap:US$15.8b
Kazatomprom matters for this nuclear energy screen because it sits at the very start of the fuel chain, turning uranium ore into the raw material that keeps reactors running.
"Global structural undersupply of uranium driven by increasing nuclear build-outs, plant lifespan extensions, and a lag in bringing new projects online is supporting a multi-year demand upcycle. This is positioning Kazatomprom for sustained pricing power and higher sales volumes, which is positive for revenue and margin growth."
What happens to Kazatomprom's margins if one quiet cost and logistics pressure tightens just as buyers lean harder on its uranium supply?
If that pressure point is what worries you, read the full narrative for National Atomic Company Kazatomprom JSC to see how Kazatomprom could turn tightening conditions into accelerating pricing leverage.
Centrica (LSE:CNA)
Overview:Centrica is a diversified energy group that supplies power and services while directly generating electricity from its nuclear assets.
Operations:Centrica records £16.3b from Retail activities, £6.0b from Optimisation and £1.6b from Infrastructure, before inter-segment and contract adjustments.
Market Cap:£6.9b
Centrica matters in this nuclear-focused list because it does not just trade energy; it also owns and draws electricity from nuclear generation stakes that sit alongside its wider retail and infrastructure activities.
"Expanding investment in regulated and contracted infrastructure such as Sizewell C, Grain LNG and the Meter Asset Provider, which together contributed about £80m of EBITDA in H1 2026 and are expected to reach roughly £175m in 2026, points to a growing base of long-duration earnings that can raise the share of predictable EBITDA and support more stable net margins."
What could really shift the appeal of Centrica's nuclear-linked earnings is how one unresolved credit and funding pressure is ultimately handled.
If that funding overhang is your key question, read the full narrative for Centrica to see how Centrica's nuclear exposure could decouple cash flow and share price.
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This article is general in nature and was produced with the assistance of AI automation, based on data and analysis from Simply Wall St. We provide commentary based on historical data and analyst forecasts only using an unbiased methodology and our articles are not intended to be financial advice. It does not constitute a recommendation to buy or sell any stock, and does not take account of your objectives, or your financial situation. We aim to bring you long-term focused analysis driven by fundamental data. Note that our analysis may not factor in the latest price-sensitive company announcements or qualitative material. Simply Wall St has no position in any stocks mentioned.
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