Avalanche Energy is a fusion energy company developing compact, modular fusion machines called Orbitrons. Rather than pursuing a single massive power plant, Avalanche is building fusion systems that can be manufactured, transported, deployed, upgraded, and improved through rapid engineering cycles.
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The company’s long-term mission is to commercialize fusion as a practical source of abundant clean energy while creating valuable commercial products along the way, including neutron sources, advanced testing infrastructure, and technologies that support future fusion power systems.

Founded in 2018 and headquartered in Seattle, Washington, Avalanche combines plasma physics, advanced manufacturing, high-voltage engineering, materials science, and systems engineering to accelerate the commercialization of fusion.

Our mission is to make fusion practical through engineering.

Fusion has been studied for decades, but commercial success depends not only on scientific breakthroughs, but also on building machines that can be manufactured reliably, operated efficiently, upgraded continuously, and deployed where they’re needed.

Avalanche believes practical fusion will emerge through rapid iteration, disciplined engineering, and modular system design.

Many fusion companies are developing large, centralized power plants designed to generate hundreds of megawatts of electricity from a single facility.

Avalanche is pursuing a different path.

Our strategy is centered on small, modular fusion machines that can be manufactured in quantity, transported using conventional logistics, and combined to meet a wide range of power and industrial needs.

Instead of waiting to build one extremely large reactor, we believe smaller machines allow us to learn faster, improve faster, and deploy earlier commercial products while advancing toward fusion power generation.

The Orbitron is Avalanche’s compact fusion machine architecture.

Each Orbitron is designed around electrostatic plasma confinement using high-voltage electric fields to accelerate ions toward fusion conditions.

This compact architecture enables:

→ Modular manufacturing
→ Faster engineering iteration
→ Easier transportation and deployment
→ Higher experimental throughput
→ Continuous hardware upgrades
→ Parallel development across multiple machines

Rather than treating every reactor as a unique construction project, Avalanche approaches fusion development more like aerospace manufacturing or semiconductor engineering.

Small fusion systems offer several potential engineering advantages:

Faster Learning
Smaller machines can be designed, built, tested, and improved more rapidly than large facilities.

Manufacturing
Compact systems are better suited for repeatable manufacturing processes rather than custom construction.

Modularity
Individual machines can be deployed independently or combined into larger power systems.

Upgradability
New hardware generations can replace individual modules without redesigning an entire facility.

Accessibility
Smaller systems lower the cost and time required to perform experiments, validate new technologies, and deploy commercial products.

Avalanche develops fusion technology using rapid engineering cycles.

Each new machine generation incorporates lessons learned from previous designs in:

→ Plasma performance
→ High-voltage systems
→ Diagnostics
→ Materials
→ Manufacturing
→ Operations

Rather than optimizing only scientific performance, Avalanche also optimizes how quickly new knowledge can be translated into improved hardware.

FusionWERX is Avalanche’s commercial neutron testing and fusion development platform.

It will provide customers with access to neutron generation capabilities for:

→ Materials testing
→ Detector characterization
→ Scientific research
→ Industrial development
→ Defense applications
→ Fusion technology validation

FusionWERX also serves as an engineering platform that supports Avalanche’s broader fusion development roadmap.

Avalanche is pursuing multiple commercial markets while advancing toward fusion power generation.

These include:

→ Neutron generation
→ Advanced materials testing
→ Fusion research infrastructure
→ Radioisotope technologies
→ Defense applications
→ Space technologies
→ Direct energy conversion
→ Future modular fusion power

This staged commercialization strategy allows technologies developed for fusion power to create value earlier in adjacent markets.

Avalanche’s technologies are designed to support a wide range of industries.

Potential applications include:

→ Carbon-free electricity generation
→ AI and data center power
→ Defense and national security
→ Space power systems
→ Scientific research
→ Semiconductor manufacturing
→ Medical isotope production
→ Industrial neutron sources
→ Advanced materials qualification

Avalanche’s engineering efforts span multiple technical disciplines:

→ Plasma physics
→ High-voltage engineering
→ Electrostatic confinement
→ Fusion fuels
→ Vacuum systems
→ Advanced materials
→ High-entropy alloys
→ Power electronics
→ Radiation detection
→ Direct energy conversion
→ Nuclear engineering
→ Precision manufacturing

Avalanche has achieved a number of technical and commercial milestones, including:

→ Development of multiple generations of Orbitron fusion machines
→ Construction of increasingly capable fusion systems
→ Expansion of plasma diagnostics
→ Establishment of FusionWERX
→ Strategic partnerships across government and industry
→ Awards from organizations including DARPA and AFWERX
→ Continued advances in high-voltage operation, plasma performance, and neutron technologies

What type of fusion does Avalanche use?
Avalanche develops compact electrostatic fusion systems that use high-voltage electric fields to accelerate ions toward fusion conditions.

What is an Orbitron?
An Orbitron is Avalanche’s modular fusion machine architecture. It is designed to enable rapid engineering iteration, manufacturability, and scalable deployment.

Why build small fusion machines?
Smaller machines can be manufactured, transported, upgraded, and improved more quickly than very large reactor designs, enabling faster learning and more flexible deployment.

Does Avalanche only build power devices?
No. Avalanche is commercializing neutron generation, testing infrastructure, and enabling technologies that support future fusion power while creating value in the near term.

What is FusionWERX?
FusionWERX is Avalanche’s neutron testing and fusion development platform that supports industrial, scientific, and defense customers while accelerating Avalanche’s own technology development.

What industries could benefit from Avalanche’s technology?
Potential applications include electric power generation, AI infrastructure, defense, aerospace, industrial testing, scientific research, advanced manufacturing, and space exploration.

Orbitron™ – Our compact modular fusion architecture (View →)

FusionWERX™ – Commercial neutron testing and development (View →)

Fusion 101 – Learn the fundamentals of fusion energy (View →)

Fusion Methods – Compare different approaches to fusion (View →)

Applications – How fusion can transform multiple industries (View →)

‍Machines - Explore the evolution of Avalanche’s fusion systems (View →)

News – Follow our latest technical milestones and company updates (View →)