1. The Founding Vision
Every transformative era in American history was unlocked by a leap in available power. We founded Stellios to enable the next leap and unlock the future powered by compact fusion. From fusion-powered engines for hypersonic and space flight, to directed energy defending against drone swarms, to energy powering AI data centers, the next era of American progress will be defined by the development of fusion-scale power systems.
We are starting with high-power microwaves (HPM) and directed energy, where the demand for extreme power is immediate and urgent. But the platform we are building is designed from day one to enable compact fusion. The same vacuum chambers, high-field magnets, SiC power electronics, and AI-driven digital twin software that power our HPM systems are the foundation of Stellios Core, our compact fusion reactor, and Stellios Halo, our fusion-powered propulsion technology.
The next era of American progress will be enabled by power systems built for fusion-level energy densities. Building those systems in the United States is the mission of Stellios.
2. Historic Context
American companies pioneered high-energy power systems — from high-power microwaves to early fusion demonstrators — but over the past three decades these capabilities were allowed to atrophy. Today, deploying MW-class systems routinely takes 12–24 months, depends on foreign components, and requires custom design projects.
At Stellios we are committed to reversing this decline, restoring American leadership in extreme-power applications, and rebuilding domestic power systems manufacturing base.
American pioneers of high-energy power systems: compact FRC fusion at Los Alamos (left, 1980s–1990s) and klystron HPM systems invented in Silicon Valley (right, 1940s–1950s).
3. Energy Density Frontier
Today's technologies are constrained by energy density of chemical combustion measured in tens of megajoules per kilogram. Fusion unlocks terajoules per kilogram or over one million times higher energy densities. This leap means that applications that were once science fiction are becoming possible. The Moon is reachable in a single day, Mars missions shrink from years to weeks, hypersonic aircraft cross oceans in hours, directed energy systems defend against drone swarms with effectively unlimited engagement capacity, and AI data centers run without constraint, accelerating intelligence at unprecedented scale.
With higher energy density, you need far less fuel mass to complete the same mission, or you can take on missions that were impossible before. A million fold increase in energy density means you could replace the 100 ton fuel load of a Boeing 777 with a few pounds of fusion fuel and remove any meaningful constraint on range or flight duration. Remote bases and space outposts are no longer dependent on fragile fuel logistics because a compact fusion unit can run for months or years without refueling. AI clusters and industrial systems scale without constraint because the power source is no longer the bottleneck.
The opportunities unlocked by TJ/kg energy densities are historic, but they require operation at the new level: from materials, to cooling, to energy extraction, to the way energy is used for propulsion needs to be designed to handle power densities and heat flows orders of magnitude beyond combustion-powered systems. This is why Stellios is building a power systems platform and not just a fusion reactor.
4. The Stellios Platform
The Stellios Platform is a unified high-energy power systems architecture built on three integrated layers: Stellios Genesis (AI-driven digital twin control), high-power microwave (HPM) generation, and compact aneutronic fusion (Stellios Core). The same core hardware — high-field magnets, vacuum systems, SiC electronics, and real-time AI control — powers both HPM products today and fusion systems tomorrow.
Stellios is a high-energy power systems platform company.
We deliver real products and revenue in 2026 while deliberately building the exact technical foundation required for compact fusion at scale.
The Stellios platform is a set of tools that enable reaching and handling of fusion-level energy densities. The key component is a linear vacuum chamber with multi-Tesla magnetic fields and kV-level electric fields actively controlling and shaping flows of charged particles. In the case of high power microwave systems (e.g., gyrotrons) we are controlling the flow of electrons that spin in the B-field and generate microwaves. In the case of compact FRC fusion we are controlling the flow of protons and B11 atoms that form toroidal plasma flow and are heated to fusion-level temperatures.
Digital Twins & Real-Time Control
Physics-informed neural networks running on GPU clusters now discover control waveforms and field configurations in weeks instead of years. This collapses design cycles and makes stable, compact high-energy systems possible for the first time.
High-Power Microwave Systems (Gyrotrons)
We are commercializing MW-class gyrotrons with magnetron injection guns, depressed collectors, and integrated magnet/cavity designs to reach 80% efficiency. These systems address urgent demand in directed energy, counter-UAS, geothermal drilling, and industrial heating while building the exact vacuum and high-field hardware required for fusion.
Compact FRC Fusion (Stellios Core)
The same platform scales directly into aneutronic p-B11 fusion reactors for propulsion, forward operating bases, and grid-scale power. We are already proving the enabling subsystems in revenue-generating products today.
5. Why Now
For decades, high-energy power systems were constrained by the limits of switching, control, and integration. That constraint has now broken.
Megawatt-scale SiC power electronics now exist. Modern SiC modules enable MW-class electromagnetic systems operating at 100 kHz to 1 MHz with 98–99% efficiency, performance that silicon IGBTs could not approach. Systems that once required room-scale infrastructure can now be built at cabinet scale.
AI-assisted real-time control is now possible. Physics-informed neural networks running on GPU clusters can discover control waveforms and field configurations directly. This compresses design cycles from years to weeks and enables stable operation of compact, high-energy systems that were previously impractical.
Demand has caught up to capability. Autonomous drone swarms, hypersonic systems, advanced robotics, and space infrastructure all require orders-of-magnitude higher power density. These systems cannot be supported by legacy energy architectures. They require a new class of power systems.
The result is a convergence: the core technologies are ready at the same moment the world begins to demand them.
6. The Stellios Master Plan
We follow a deliberate, revenue-generating sequence to build the future of American power:
Step 1: Master the enabling platform (2026–2027)
Commercialize Stellios HPM Systems and PowerNode products to address urgent defense and industrial markets. These systems generate early revenue, prove the core technologies in real environments, and build scalable domestic manufacturing capacity.
Step 2: Deploy fusion where capability matters most (2027–2028)
Leverage the platform, revenue, and operational experience to execute the Stellios Core pathfinder program. First applications include compact power for forward operating bases and high-Isp propulsion for hypersonics and space — markets where performance outweighs cost per kilowatt-hour.
Step 3: Scale to abundant energy
As manufacturing matures and costs fall, the Stellios Core family expands into broader industrial, remote power, and eventually grid markets. We start where extreme power changes missions today. Then we scale until it changes civilization.
Stellios is not just a bet on compact fusion. We are a bet on the entire next generation of American power — from generation to conditioning to utilization across propulsion, defense, space, and energy. Fusion-level power densities don't just improve existing systems. They create the opportunity to redesign them from the ground up: air travel, drone defense, space transport, AI infrastructure. We are building that foundation today, in the United States, with the conviction that the era of fusion power belongs here.
7. Strategic Imperative
In a world where China is rapidly deploying AI-powered drone swarms, advancing hypersonic systems, and scaling space launch and energy infrastructure, the absence of a domestic high-energy power systems industry is no longer a technical deficiency, it is a strategic vulnerability. Our adversaries are scaling military and AI capabilities through massive increases in available energy. America has always competed through innovation, not brute force. To dominate the next century, we must build power generation and directed energy systems that transcend what is possible today.
Today's defense remains rooted in expensive kinetic systems that do not scale against low-cost, rapidly evolving threats. We cannot shoot thousand-dollar drones with million-dollar missiles. The next generation of defense requires directed energy systems with speed-of-light engagement, near infinite magazine, and near-zero cost per engagement, all of which depend on orders-of-magnitude increases in available power density.
Countries that unlock fusion-level power densities first will gain strategic advantage across directed energy, hypersonics, and space. Stellios is making sure that America leads this new frontier.
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