The brief

Analyst view

• Aalo-1: 10 MWe sodium-cooled fast reactor on truck. Pod: 5 units = 50 MWe.
• Aalo-X reached criticality 4 July 2026 at INL. Validates design at scale.
• Crusoe Energy partnership. Target 3¢/kWh via mass manufacturing.

Technical approach

As reported

Sodium cooling

100x better heat transfer than water

Compact vessels, simpler engineering. Less cooling needed.

Factory manufacturing

Factory-built, truck-shipped

Reduces field time and labour vs site-built.

Distributed power

10–50 MWe for data centres

Sizes match data-centre loads better than utility plants.

Cost target

3¢/kWh via mass manufacturing

Scale and compact design undercut fossil on cost.

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