Helion Energy

Leader

Helion Energy is a leading private nuclear fusion company pursuing the world's first commercial fusion power plant, with a power purchase agreement with Microsoft for 2028 delivery. HQ: Everett, WA.

Updated March 2026

Company Overview

About Helion Energy

Helion Energy is a fusion energy company working to develop the first commercially viable nuclear fusion power plant. Founded in 2013 and headquartered in Everett, Washington, Helion has pioneered a unique approach to fusion: instead of using deuterium-tritium (D-T) fuel like most fusion programs, Helion uses deuterium-helium-3 (D-He3) fuel with a proprietary field-reversed configuration (FRC) reactor design that simultaneously generates electricity directly through electromagnetic induction — potentially skipping the turbine step that adds complexity to other fusion approaches.

Business Model & Competitive Advantage

Helion has raised over $2.2 billion in funding, including a $500 million investment from Sam Altman (who is also CEO of OpenAI), making it the world's most well-funded private fusion company. In 2023, Microsoft signed a power purchase agreement to buy electricity from Helion starting in 2028 — the first commercial fusion power contract in history — signaling both Microsoft's commitment to carbon-free energy for its AI data centers and Helion's confidence in its timeline. The company has operated six prototype machines with its seventh (Polaris) designed to demonstrate net energy gain from fusion.

Competitive Landscape 2025–2026

Achieving commercial fusion would be transformational: fusion produces no carbon emissions, the fuel (deuterium from seawater, helium-3 from fusion itself) is essentially inexhaustible, and it generates far more energy per kilogram of fuel than any other reaction. While fusion timelines have historically been optimistic, Helion's direct electricity generation approach and recent capital raises suggest meaningful technical progress. Success would address climate change and energy scarcity simultaneously.

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Key Differentiators

Market Leader

Helion Energy is recognized as a market leader in the Climate & Energy sector, demonstrating strong industry presence and customer trust.

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