Zephyr Fusion builds compact megawatt-class fusion reactors that can be launched and operated in orbit, delivering continuous high‑density electricity independent of solar cycles. The reactors integrate with existing spacecraft buses to power satellite constellations, orbital manufacturing, space‑based data centers, propulsion systems, and long‑duration habitats at a lower cost per megawatt than current solar solutions.
Funding
Funding not disclosed
Founders
Product
Problem
Space missions and orbital platforms are limited by the high mass, low energy density, and high cost of current power sources such as solar arrays and nuclear generators, constraining activities like manufacturing, data processing, propulsion, and long‑duration habitation.
Solution
Zephyr Fusion is developing compact, megawatt‑class fusion reactors that can be launched and operated in orbit. The reactors are designed to produce continuous high‑density power at a fraction of the cost per megawatt compared with equivalent solar installations. By delivering reliable, scalable electricity directly in space, the technology enables power‑intensive applications without the mass and deployment penalties of large solar arrays. The in‑orbit fusion system is intended to integrate with existing spacecraft bus architectures and provide power on demand for microgravity manufacturing, orbital data centers, defense payloads, propulsion systems, and human habitats.
Target Audience
Primary customers are satellite operators, orbital manufacturing firms, space‑based data center providers, defense contractors, and entities planning long‑duration human habitats or propulsion systems in low‑Earth or geostationary orbit.
Features
- Compact reactor form factor optimized for launch constraints while delivering megawatt‑scale output
- Continuous, high‑density power generation independent of solar illumination cycles
- Designed for in‑orbit operation with minimal maintenance and autonomous control
- Cost‑effective power production targeting a fraction of the $1 B/MW price of current solar solutions for the ISS
- Compatibility with a range of space‑based platforms, including manufacturing modules, data center racks, propulsion units, and habitation modules