Energy markets are on edge as Gulf countries prepare for possible escalation around Iranian nuclear and power facilities, keeping long term fuel security in sharp focus for British households and businesses. That spotlight on reliable baseload electricity puts nuclear power back in the conversation for UK investors. This article walks through three nuclear energy stocks from our focused list that could merit a closer look now.
The three stocks highlighted here offer a compelling starting point if you want exposure to uranium producers, fuel enrichment groups and reactor operators tied to reliable and sustainable power. However, if you want the strongest names, these 16 nuclear renaissance stocks are at the top of the list.
Rolls-Royce Holdings (LSE:RR.)
Overview:Rolls-Royce Holdings designs and services mission-critical power systems, including military aero engines, naval propulsion and submarine nuclear reactors worldwide.
Operations:The group generates about £11.8b from Civil Aerospace, £5.5b from Power Systems and £5.0b from Defence activities.
Market Cap:£102.2b
For the Nuclear Energy Stocks theme, Rolls-Royce matters because its Defence division supplies submarine nuclear reactors, then builds on that engineering base through emerging small modular reactor projects.
"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."
What happens to Rolls-Royce margins and cash generation depends heavily on how one unseen pressure in its capital-heavy programs evolves.
That hidden strain is exactly what the full narrative for Rolls-Royce Holdings unpacks, showing where capital intensity could be masking accelerating strengths or fresh risks for Rolls-Royce Holdings.
Centrica (LSE:CNA)
Overview:Centrica is an integrated energy supplier that provides gas, electricity, services and infrastructure, while also generating and trading nuclear-produced power.
Operations:Centrica earns about £16.3b from Retail, £6.0b from Optimisation and £1.6b from Infrastructure, partly offset by inter-segment and IFRS 9 adjustments.
Market Cap:£6.9b
Centrica matters for this nuclear-focused screen because its generation fleet and trading arm handle nuclear-produced electricity that feeds directly into the UK energy system, giving you exposure to low carbon baseload while still sitting inside a broad, multi-segment utility.
"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 happens to Centrica's nuclear-linked earnings power hinges on how one unresolved funding and credit pressure filters through to future margin stability.
That funding question is exactly what the full narrative for Centrica tackles, revealing where nuclear-linked earnings, credit risk and retail volatility may be quietly decoupling for Centrica.
Avon Technologies (LSE:AVON)
Overview:Avon Technologies develops CBRN-focused respiratory and head protection gear for military personnel and first responders in Europe and the United States.
Operations:The group generated $186.2 million from Avon Protection and $139.8 million from Team Wendy, with $247.8 million reported in the United States.
Market Cap:£755 million
Avon Technologies gives this nuclear energy screen exposure to the safety gear that protects people working around radiological risks, which links its CBRN kit directly to how nuclear incidents are contained and managed on the ground.
"Ramp up of Team Wendy helmet production volumes, backed by long dated U.S. Department of War franchises on IHPS and ACH programs, provides scope for further utilization gains and margin expansion that can support group operating profit and ROIC."
What happens to Avon Technologies' appeal inside this nuclear safety theme now depends heavily on how one unseen operational pressure evolves.
To see how that pressure could convert into accelerating opportunity or fresh risk for Avon Technologies, read the full narrative for Avon Technologies for the full picture.
Seeking Fresh Alternatives Beyond Nuclear?
Fresh ideas rarely stay under the radar for long. Screens fill up fast once momentum builds and prices start flying. Check these curated shortlists before the crowd and get in early.
-
Target reliable cash generators by scanning a curated list of solid balance sheet and fundamentals (10 results) that filters for resilient operations and funding strength while this corner of the market is still being priced quietly.
-
Review the hand picked 16 top copper producer stocks that tracks producers in the copper space and use it to explore opportunities related to long term electrification trends before buyers are reacting to later price moves.
-
Focus on resilient payouts by running through the curated 5 dividend fortresses that highlights income engines with yields that may appear relatively high if prices move higher.
This article by Simply Wall St is general in nature. 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.
Have feedback on this article? Concerned about the content? Get in touch with us directly. Alternatively, email editorial-team@simplywallst.com
