We started Marathon in 2023 to develop the tritium fuel systems fusion needs to operate at commercial scale.
In 2025, we invented a way to deploy commercial fusion sooner through the co-production of valuable isotopes.
Now, we’re building the full stack for nuclear fusion.
Building the world's highest power density fusion reactor
- Fusion power
- 1kW
- Power density
- 20 kW/m2
- Neutron flux
- 1012 n/cm2/s
Ion Beam
An RF plasma generates deuterium ions that are accelerated to keV energies towards a target.
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Paving the way to commercial fusion
Blanket
Mercury isotopes in the blanket multiply neutrons, allowing for the co-production of electricity, tritium and gold. Breeding excess tritium creates a stockpile used to rapidly scale future plant deployments, while the co-production of stable gold creates a powerful natural dividend to enhance plant economics.
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