MetOx produces Xeus™ wire, a REBCO‑based high‑temperature superconductor that transports large currents with near‑zero resistive loss at 77 K. Its high critical current density and reinforced filamentary design enable higher power density and reduced cooling costs for fusion reactors, high‑field magnets, utility transmission lines, and hyperscale data centers. MetOx sells the wire directly and licenses the underlying HTS technology to equipment manufacturers and system integrators.
Funding
Funding not disclosed

Founders
Product
Problem
Conventional copper conductors dissipate a significant portion of transmitted power as heat, limiting efficiency and power density for high‑current applications such as fusion reactors, high‑field magnets, and expanding electrical grids. This energy loss increases operational costs and constrains the scalability of emerging power‑intensive technologies.
Solution
MetOx supplies Xeus™ wire, a proprietary high‑temperature superconductor (HTS) conductor that transports large electrical currents with near‑zero resistive loss. The material operates at elevated cryogenic temperatures, delivering critical current densities far above copper while maintaining mechanical robustness. By integrating Xeus™ wire, system designers can achieve higher power density, reduce cooling overhead, and lower total cost of ownership for next‑generation energy generation and delivery platforms. The technology is positioned to support commercial fusion projects, advanced magnet systems, and high‑capacity grid interconnects, as well as power‑intensive data center and AI compute facilities.
Target Audience
Primary customers are fusion reactor developers, high‑field magnet manufacturers, utility transmission planners, and power‑architects for hyperscale data centers and AI compute facilities seeking ultra‑efficient high‑current conductors.
Features
- Proprietary REBCO‑based HTS architecture delivering >10 kA/mm² critical current at 77 K in self‑field
- Near‑zero AC and DC resistive losses, enabling >95 % transmission efficiency over long distances
- Engineered filamentary design with reinforced copper stabilizer for high mechanical strain tolerance (>0.5 %)
- Scalable continuous‑length manufacturing process compatible with existing cable‑in‑conduit and cryostat integration methods
- Low‑temperature cryogenic compatibility (liquid nitrogen or closed‑cycle cryocoolers) reducing cooling infrastructure costs
- Comprehensive material certification and quality‑control data package for rapid qualification in regulated utility and aerospace environments
- Option for custom cross‑section geometries and multi‑core configurations to match specific magnet or grid specifications