# SMR order book swells on AI power demand: Oklo-Switch 12GW, Rolls-Royce wins Sweden
> Data-center developers and European utilities lock in small modular reactors years before first concrete, betting on factory-built nuclear to feed compute and grids

**Meta:** type: story · date: 2026-06-24 · heads: اللعبة الطويلة, أموال من · 11 takes · 3 lenses · 4 regions

## Summary

[Small modular reactor](/ar/entity/smr) commitments are stacking up well ahead of first concrete. Sweden's
Videberg Kraft (80% Vattenfall) picked [Rolls-Royce SMR](/ar/entity/united-kingdom) to build three 470MW
units on the Värö peninsula, its first new nuclear in 40+ years, extending Rolls-Royce wins at
[UK](/ar/entity/united-kingdom) Wylfa (up to eight units) and in Czechia. In the [US](/ar/entity/united-states), Oklo
signed a master agreement with [data-center](/ar/entity/data-centers) developer Switch for up to 12GW of
Aurora reactors over 20 years, part of a >14GW pipeline. Demand is driven by AI [Electricity](/ar/entity/electricity)
load and [grid-supply shortfalls](/ar/n/pjm-data-center-power). Execution and first-of-a-kind cost risk
remain unproven; most output lands in the 2030s.

## By the numbers

- 12 GW, Oklo-Switch master agreement, over 20 years.
- 3 × 470 MW, Rolls-Royce SMRs selected for Sweden (~12 TWh/yr).
- Up to 8, Rolls-Royce units possible at Wylfa, UK.
- >14 GW, Oklo's stated customer pipeline.
- Mid-2030s, earliest grid delivery for most of these orders.

## Why it matters

AI compute and grid shortfalls have turned SMRs from slideware into a contracted pipeline, with
tech buyers and utilities pre-committing gigawatts. But none of these designs is yet built at
commercial scale, the gap between order book and operating fleet is the whole story.

## What to watch

- First-of-a-kind construction cost and schedule on any SMR design.
- Whether data-center PPAs convert into financed, sited projects.
- Regulatory approvals (NRC, ONR) and HALEU/LEU fuel availability.

## Regional takes (batched by bias / lens)

### unlabelled
- **GOV.UK** (United Kingdom, en) — UK government statement on Rolls-Royce SMR's selection by Sweden's Videberg Kraft (80% Vattenfall) to build three 470MW SMRs on the Värö peninsula, a flagship export win.
  Source: https://www.gov.uk/government/news/government-backing-helps-uks-rolls-royce-smr-win-multibillion-pound-sweden-nuclear-export-contract
- **Neutron Bytes** (United States, en) — 
  Source: https://neutronbytes.com/2026/06/20/rolls-royce-wins-bid-for-three-smrs-in-sweden/
- **Engineering and Technology (IET)** (United Kingdom, en) — 
  Source: https://eandt.theiet.org/2026/04/13/rolls-royce-smr-secures-deal-deliver-uk-s-first-small-modular-reactor-power-plant
- **smrintel.com** (United States, en) — 
  Source: https://smrintel.com/nuclear-data-center-deals/
- **The Motley Fool** (United States, en) — 
  Source: https://www.fool.com/investing/2026/05/30/opposition-ai-data-centers-nuclear-startup-oklo/
- **World Nuclear Association** (United Kingdom, en) — 
  Source: https://world-nuclear.org/information-library/nuclear-power-reactors/small-modular-reactors/small-modular-reactor-smr-global-tracker
- **IAEA** (Austria, en) — 
  Source: https://www.iaea.org/topics/small-modular-reactors
- **ETF Trends** (United States, en) — 
  Source: https://www.etftrends.com/disruptive-technology-content-hub/data-centers-embracing-nuclear-smrs-ai-needs/
- **Enlit World** (Global, en) — 
  Source: https://www.enlit.world/library/rolls-royce-smr-to-build-nuclear-facilities-in-sweden

### US power markets
- **Utility Dive** (United States, en) — Reports Oklo's master agreement with data-center developer Switch for up to 12GW of Aurora reactors over 20 years, emblematic of compute buyers contracting nuclear at unprecedented scale and early.
  > "Oklo could deploy 12 GW of new reactor capacity over the next 20 years through a master power agreement with Switch."
  Source: https://www.utilitydive.com/news/oklo-aurora-smr-advanced-nuclear-reactor-supply-agreement-data-center-developer-switch/735933/

### engineering/infrastructure
- **New Civil Engineer** (United Kingdom, en) — Frames the Sweden win as cementing Rolls-Royce as Europe's lead SMR vendor after UK Wylfa and Czech awards, with delivery and first-of-a-kind execution risk the open question.
  > "Three reactors of 470MW each could produce around 12TWh of fossil-free electricity per year for southern Sweden."
  Source: https://www.newcivilengineer.com/latest/rolls-royce-smr-selected-to-build-swedens-first-three-small-modular-reactors-16-06-2026/

## Across the graph
- Related: [[pjm-data-center-power]], [[us-enrichment-deRussification-2026]], [[uranium-price-plateau-2026]], [[pjm-emergency-curtailment-order-2026]]
- Entities: Smr, United States, United Kingdom, Sweden, Data Centers

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Canonical: https://rbtfl.xyz/ar/n/smr-data-center-orders-2026