European SMRs vs US Microreactors: Who Actually Competes for AI Firm Power?
Radiant is ~1 MWe portable. BlueCore is ~10 MWe barges. Europe’s credible peers are mostly larger: Seaborg barges, CORE POWER FNPPs, Blykalla, Thorizon, NUWARD, Rolls-Royce SMR.
Editorial visualisation for this briefing — not a live AGICY installation and not a vendor product photo.
Europe does compete on advanced nuclear — rarely at Radiant’s 1 MWe container class. Closest maritime analogue is Seaborg (DK) CMSR power barges and UK-based CORE POWER floating plants. Land SMRs (Blykalla ~55 MWe-class, Thorizon ~100 MWe/2034, NUWARD, Rolls-Royce SMR with UK/CZ/Sweden commitments) are utility/industrial plants. Useful for energy-investor diligence; none are AGICY CapEx or a Cyprus siting claim.
Map the classes, or you will compare the wrong machines
Radiant Kaleidos ≈ diesel-replacement microreactor. BlueCore / MARAD ≈ port barge, ~10 MWe, very early. European names cluster higher:
Seaborg (Denmark) — compact molten-salt reactors on power barges (modules often described ~100 MWe; multi-unit barges). Design completion language around 2026; first barge often cited ~2028 in older IAEA notes. Samsung Heavy / KHNP consortium history. Best EU floating analogue.
CORE POWER (UK + US arm) — June 2026 feasibility on BWXT mPower (~195 MWe) inside shipyard-built floating nuclear power plants aimed at utilities, ports, industry, datacenters, military.
Blykalla (Sweden) — lead-cooled SEALER; application for a six-unit park at Norrsundet (~330 MW combined in company materials). Demonstration SEALER-D ~80 MWt class. Not portable 1 MWe.
Thorizon (NL/FR) — molten-salt; Apr 2026 MoU toward demonstrator ~2030 and commercial Thorizon One ~100 MWe in Zeeland ~2034.
NUWARD (EDF) — European land SMR platform; Joint Early Review with regulators. Bankable industrial brand, not a barge.
Rolls-Royce SMR — 2026: GBE-N UK, ČEZ Czechia, Videberg Kraft Sweden selection. Multiple contractual commitments — the furthest EU utility SMR in competitive tenders. Grid plant, not a microreactor.
What this means for an EU AI campus
If you are an energy investor looking at AI datacenters, the European story is industrial SMR + interconnect, not a shipping-container reactor next to a hall in 2027. AGICY’s published COD energy path is still GOs/vPPA, BTM Boom fuel (€178/€150/MWh), LFP BESS, and hail-class PV optionality — H₂ blending remains TARGET / not COD. Nuclear — US or EU — is a future-check lane so the campus thesis can absorb firm-power tech when (if) licences and public consent exist.
Pair with Alpine PV and sodium-ion storage. Hardware hub: /hardware/ae-solar#ae-nuclear.
Long-term vision
A sovereign AI factory that can take a barge SMR or a Nordic lead-cooled block in a later decade is more valuable than one that can only sign hyperscaler PPAs. That is an option on regulation, not a 2026 revenue line. We will not pretend otherwise.
FAQ
Is there a European Radiant clone?
Not at 1 MWe container scale in commercial view. EU strength is SMR / FNPP class (tens to hundreds of MWe).
Are Rolls-Royce or NUWARD in the AGICY CapEx model?
No. Watchlist / research only.
Related AGICY energy research
Same series — PV, batteries, US microreactors, maritime SMRs, and European SMR peers. Design-target / watchlist framing throughout. Pre-COD campus.
- Hail-Class PV for AI Datacenters — AESOLAR Alpine HW4 hail-class TOPCon as a design-target PV layer for 24/7 AI campuses — Ember anytime-solar, ≥500 kWp developer path, not a live install.
- Sodium-Ion Storage for AI Campuses — pv magazine 10 Aug 2026: Na-ion prototypes approaching 200 Wh/kg. Why AGICY keeps LFP Megablock as Phase 1 and sodium as quote-only eval.
- Radiant Kaleidos and Firm Power for AI — 1 MWe portable HTGR: TRISO at INL DOME (Jul 2026), vendor commercial target ~2028. Future check — not CapEx, not COD, not EU siting.
- Maritime SMRs, Ports, and AI Load — Long Beach–MARAD MOC (28 Jul 2026) and BlueCore ~10 MWe barge SMRs. Why energy investors watching ports should also watch AI campuses.
Sustainability · AESOLAR Alpine stack · Energy partners ≥500 kWp · Institutional capital (not an offer)
Sources
- Blykalla
- Thorizon — Netherlands MSR MoU (16 Apr 2026)
- Rolls-Royce SMR — Sweden selection (15 Jun 2026)
- CORE POWER — mPower FNPP assessment (17 Jun 2026)
- NUWARD
External research and vendor claims. Not AGICY offtake, CapEx, or a live campus claim. Invest page is not a securities offer.