aid: helion
name: Helion Energy
description: >-
  Helion Energy is an Everett, Washington fusion power company building
  commercial fusion electricity generators using a pulsed, magneto-inertial
  field-reversed configuration (FRC) approach burning deuterium and
  helium-3. Helion forms two FRC plasmas at opposite ends of its machine,
  accelerates them toward each other, merges them, and uses pulsed magnetic
  compression to drive them to fusion conditions; the expanding plasma
  pushes against the confining magnetic field and induces current directly
  back into the machine's capacitor bank via Faraday's Law, recapturing
  electricity without a steam cycle. Founded in 2013 by David Kirtley, John
  Slough, Chris Pihl, and George Votroubek, Helion is chaired by Sam
  Altman and has progressed through seven generations of prototypes (IPA,
  Venti, Trenta, and most recently Polaris) on its way to commercial
  generators. Polaris, brought online in late 2024, is the company's
  seventh-generation machine and the first privately developed fusion
  device to demonstrate measurable deuterium-tritium fusion, reaching
  150 million degrees Celsius in February 2026. In May 2023, Helion
  signed the world's first commercial fusion power purchase agreement,
  committing to deliver 50 MWe to Microsoft starting in 2028, with the
  Orion plant planned for the Malaga, Washington area; a subsequent
  agreement with Nucor targets a 500-MWe facility. Helion is funded by
  Sam Altman, SoftBank Vision Fund 2, Nucor, Lightspeed Venture Partners,
  and others, with a reported $5.4B valuation as of early 2025. The
  company's revenue model is fusion electricity sales under long-term
  PPAs; Helion has no public developer API, SDK, or open-source software
  product, and its public GitHub organization (Helion-Energy) contains
  only forks of plasma-physics simulation tools (WarpX, FerroX, pyamrex,
  maestrowf).
type: Index
position: Provider
access: 3rd-Party
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/apis-json-logo.jpg
tags:
  - Fusion Energy
  - Fusion Power
  - Pulsed Fusion
  - Field-Reversed Configuration
  - FRC
  - Magneto-Inertial Fusion
  - Deuterium-Helium-3
  - Aneutronic Fusion
  - Direct Energy Conversion
  - Polaris
  - Orion
  - Electricity Generation
  - Clean Energy
  - Microsoft PPA
  - Nucor
  - Hardware
url: https://raw.githubusercontent.com/api-evangelist/helion/refs/heads/main/apis.yml
created: '2026-05-24'
modified: '2026-05-24'
specificationVersion: '0.20'
apis: []
common:
  - type: DomainSecurity
    url: security/helion-domain-security.yml
  - type: Website
    url: https://www.helionenergy.com
  - type: Technology
    url: https://www.helionenergy.com/technology/
  - type: Polaris
    url: https://www.helionenergy.com/polaris/
  - type: Trenta
    url: https://www.helionenergy.com/trenta/
  - type: Orion
    url: https://www.helionenergy.com/orion/
  - type: Chelan
    url: https://www.helionenergy.com/chelan/
  - type: About
    url: https://www.helionenergy.com/about/
  - type: FAQ
    url: https://www.helionenergy.com/faq/
  - type: Newsroom
    url: https://www.helionenergy.com/news/
  - type: Blog
    url: https://www.helionenergy.com/blog/
  - type: Hercules
    url: https://www.helionenergy.com/hercules/
  - type: Careers
    url: https://www.helionenergy.com/careers/
  - type: Contact
    url: https://www.helionenergy.com/contact/
  - type: GitHub
    url: https://github.com/Helion-Energy
  - type: Twitter
    url: https://x.com/helion_energy
  - type: LinkedIn
    url: https://www.linkedin.com/company/helion-energy
  - type: YouTube
    url: https://www.youtube.com/c/helionenergy
  - type: Instagram
    url: https://www.instagram.com/helionenergy
maintainers:
  - FN: Kin Lane
    email: kin@apievangelist.com