It’s Time for SOLO to
Power the World
SMR™: SOLO MICRO-MODULAR REACTOR
Nuclear-Powered Technology
Engineered to run autonomously, our SMR™ - SOLO Micro-Modular Reactor uses nuclear technology to power the world with environmental awareness, efficiency, maximum power, and safety.
DESIGNED ON EXISTING SUPPLY CHAIN
Proven engineering and licensing by precedence: Our pragmatic approach draws on over 50 years of experience and lessons learned from the nuclear industry.
Leveraging existing supply chains, we are building a network of leading industry partners and top-tier suppliers for critical components and long-lead items.
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PROVEN LICENSING PATH
Our licensing strategy leverages the ‘Rule by Precedence’: SOLO's robust design meets diverse criteria and adapts to varying licensing environments worldwide, enabling deployment anywhere.
Highly modular and factory mass-produced, SOLO can be rapidly deployed on a global scale, ensuring predictable timelines and immediate ROI.
SAFE BY DESIGN & PHYSICS PRINCIPLE
No exclusion zone required. The Emergency Zone Plan is confined within the operational boundary, defined by a 2.5 meter-thick concrete biological shield encircling the reactor.
Radiation exposure at the shield's outer surface is at least an order of magnitude below legal public safety limits (<1 mSv/year) - equivalent to less than the dose of a chest X-Ray every 10 years.
DECOMMISSIONING & WASTE MANAGEMENT
SOLO is the first micro modular nuclear reactor with a design that integrates backend considerations from the outset.
This approach minimizes liability for customers and enhances public acceptance.
THE HEART OF SOLO
Our Core
Years of design, weeks to build.
SOLO features a thermally-moderated, gas-cooled nuclear reactor core that operates with standard enrichment U235 below 5% and conventional Zircaloy-cladded UO2 fuel pellets, similar to those used in many large-scale reactors worldwide.
The reactor's design efficiently decouples cooling and moderation functions, providing inherent safety features that significantly reduce its risk profile. This enables a straightforward safety analysis, where the safety case can be established based on fundamental principles, without the need for complex evaluation models.
SOLO’s core is inherently safe—incapable of melting or exploding. It is engineered to deliver constant power throughout its operational life, utilizing a minimalist instrumentation and control (I&C) system while operating fully autonomously.
THE SHELL
Monolith
BIOLOGICAL SHIELD
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Biological shield is a 2.5m thick concrete wall around the reactor vessel.
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Effective dose below the public exposure limits < 1 mSv/year (much less by two orders of magnitude; a chest X-Ray is 0.1mSv, i.e. SOLO exposure is less than a chest X-Ray every 10 years).
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Heat evacuation system for normal and accident conditions based on natural convection Max Concrete Wall Temperature < 314 K.
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Heat can be removed by forced circulation even though natural circulation is enough to remove the decay heat.
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Heat losses in nominal conditions are less than 200kW (~6% of core power - i.e. larger than the decay heat).
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Decay heat after 1 day after shut down is 0.4% of the nominal power (i.e. equivalent to about 10 bread toasters).
CORE REACTOR SAFEGUARDS VERIFICATIONS
• The reactor will include safeguards based on the Fuel Verification system implemented by IAEA.
• SOLO features 4-8 safeguards reactor channels around the core with gamma and neutron multiplicity counting allowing unique fingerprint of in-core fuel presence.
• Measurement channels are transmitting in real time to IAEA Headquarter with data encryption and possible authentication via satellite.
• System is locked and sealed in an anti-tampering hous- ing and allow on-site inspection verification.
UO2, LEU+, HALEU
Bridging Technologies
Video: State of the art fuel fabrication
Chart: SOLO with LEU+ and HALEU
SOLO provides the first platform able to transition from current to future fuel products and supply.
SOLO fills the gap between the current use of standard UO2 fuel, future LEU+ and HALEU.
Our micro modular nuclear reactors can work with different fuel taking benefit of LEU+ and HALEU for both larger power (10MW or 20 MW) with same duration or larger duration (30+ or 60+ years) and equal power of SOLO X-1.
SOLO 1GWe
The Power is in Modularity
REMOTE DATA CENTERS
SOLO micro-modular nuclear reactor is designed to address the growing energy demands of data centers, particularly those driven by big data and AI technology from companies like Amazon, OpenAI, Apple, and Microsoft. These tech giants are pushing the limits of data storage and processing, requiring vast amounts of energy to support the continuous operations of AI systems.
By placing SOLO reactors in a modular setup next to these data centers covering a diameter of less than 1km range, we can generate up to 1GWe of reliable, carbon-free energy. This solution mitigates reliance on traditional energy grids, ensuring that data centers have the power they need to support AI advancements while reducing their environmental footprint.
SOLO’s deployment offers a scalable and sustainable energy source to meet the demands of modern data-driven enterprises.
URBAN POWER GRID
• Immediate commercial solution (starting from 2028).
• No limit to power size.
• Limited foot print, 1GWe in 0.75km2 with no need of EZP.
• No need of storage systems.
• Higher number of power redundancy.
• No need of water.
• No possibility of explosion.
• No possibility of core melt.
• No need of grid connection.
• 15 years of continuous power supply.
SOLO is today’s unique solution to safely maximize nuclear power by 2028.
PRODUCTS & ENERGY
Powering the Future
We have developed a unique micro modular nuclear reactor that offers a reliable, zero-emission energy source with a minimal land footprint, meeting rising energy demands sustainably.
With scalable, safe, and efficient technology, SOLO will accelerate the transition to a cleaner, carbon-free future.
SOLO X1, X5, X15
Best suited for off-grid, micro-grid deployment model to ease/maximize market penetration.
SOLO-X1
Power-class 1.0 MWe/5.0 MWth (Target 2028)
SOLO-X5
Power-class 5.0 MWe/20.0 MWth (Target 2030)
SOLO-X15
Power-class 15.0 MWe/45.0 MWth (Target 2031)
CORE SWAP
15 YEARS WITHOUT REFUELING
• No-Refueling and 15-Years Full Power Operation.
• Maximum linear heat rate 4 kW/m (only ~10% of current operating LWRs).
• Negative fuel temperature reactivity feedback.
• Total Reactor Decay Heat is less than 60 kW (1.5% nominal core power) 1 hr after shutdown.
• After a day further reduced to 16 kW (~ 10 bread toasters).
• Simple Safety Case: Eventual increase of temperatures during accidental conditions reduced by an order of magnitude when compared to existing reactors.
• Highly diverse and redundant core shutdown system.
45 YEARS WITH REFUELING
• Core swap to allow life extension
• Safety and non proliferation features kept
• Increase profitability
POWER SOURCE & ENERGY DELIVERY
POWER SOURCE
• Power: 1.1 MWe/5 MWth.
• Fuel Rods: UO2 Pellets (4.95% U235), Zircalloy Clad (same as operating LWRs), 15-years Fuel Cycle (no-refueling).
• Moderator: Solid.
• Coolant and Reactivity Control System: Helium and Boron Carbide.
ENERGY DELIVERY
• Designed to fit in ship container (2.4x2.4x12m).
• Bryton, Stirling or Rankine power converters (user choice).
• Assembled in a factory and transportable by track, train, ship - total weight less than 60t (reactor core less than 20t).
• Behind the meter application.
SECURITY
Safeguards by Design