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David Kirtley
Helion
1,337 posts
user avatar
David Kirtley
Helion
@Dkirtley
Level 12 atomancer
Everett, WA
he3.com
Joined October 2014
235
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11.2K
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  • Pinned
    user avatar
    David Kirtley
    Helion
    @Dkirtley
    Jun 4
    Today, we closed our Series G at @Helion_Energy , raising $465M to build the industrial and manufacturing foundation needed to produce fusion generators at an assembly-line scale.
    27K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    May 10, 2023
    Wow! I am incredibly proud to announce that we’ve secured our first customer: Microsoft!
    928K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Sep 27, 2023
    I’m excited to share we’re working to build a 500 MW fusion power plant at Nucor steelmaking facility! This is a major step in decarbonizing industrial manufacturing, and I am so proud to work with Nucor on this journey. Read more:
    Announcing Helion’s collaboration with Nucor
    From helionenergy.com
    119K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Aug 13, 2025
    Something that @sama once said that has stuck with me: History belongs to the doers; not those who sit around and talk and organize. What I love about our team is that we do. We build, iterate, test, fail, and try again. We don't just talk about where we're going, we go there.
    52K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Sep 18, 2025
    This is pretty much the same mechanism that happens when you stop burning fuel to boil water.Our fusion power plants waste less energy by design. With no steam cycle, or turbine, you get direct electricity for the grid.
    32K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    May 10, 2023
    Replying to @Dkirtley
    .@Microsoft has agreed to purchase electricity from @helion_energy’s first fusion power plant. We expect this first-of-its-kind power facility to come online in 2028 with support from @ConstellationEG as our power marketer.
    64K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Aug 18, 2025
    The time of massive kettles is coming to an end
    45K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Nov 17, 2025
    One of the most in-depth discussions I’ve had about where Helion stands today and what it will take to scale. Thank you, @lexfridman for the wide-ranging conversation and physics deep dives! youtube.com/watch?v=m_CFCy…
    72K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    May 10, 2023
    Replying to @Dkirtley
    WORLD'S FIRST FUSION POWER PLANT!!
    40K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Sep 9, 2025
    Fusion is the ultimate hardware job. Into building pulsed power, high-voltage electronics, precision magnets, or plasma diagnostics? Come make machines that put electricity on the grid.
    user avatar
    Helion
    @Helion_Energy
    Sep 9, 2025
    Our team designs, builds, and tests fusion hardware across a broad range of disciplines. It's all on the path to commercial fusion deployment.
    00:00
    81K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Jul 30, 2025
    Very excited to be building the world's first fusion power plant in Malaga, WA!
    Starting to build the world's first fusion power plant in Malaga, WA
    From helionenergy.com
    16K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Nov 28, 2023
    What an awesome photo of our deuterium plasma injector testing! This is the first at this scale of FRC to be made by fully semiconductor switching – think billions of pulses (decades) instead of tens of thousands (months). We are also testing out new controls, diagnostics, and
    user avatar
    Helion
    @Helion_Energy
    Nov 28, 2023
    First FRC in our Polaris Formation test! ☑
    27K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Oct 16, 2025
    US Patent 12,418,973 B2 allowed: Apparatus and methods for generating a pulsating, high-strength magnetic field. This is the timed fields that form and compress our FRC plasmas and support direct energy recovery. Great to get it out! Now back to building!!
    16K
  • user avatar
    David Kirtley
    Helion
    @Dkirtley
    Jun 1, 2023
    This represents a major stride in Helion’s technology development. Trenta pulsed once every ten minutes. This test showed we can pulse the power systems for Polaris once per second for long durations. Huge!
    user avatar
    Helion
    @Helion_Energy
    Jun 1, 2023
    Pulsed power test complete! Operating at 1 Hz, the Vela test capacitor bank moved more than 11 GJ total energy through our system. This milestone showcased the reliability of our new solid-state switches for Polaris and provides a scalable path to direct electricity recovery.
    76K