Helion Energy

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Helion Energy

Helion is a fusion power company in Everett, WA enabling a future with unlimited zero-carbon electricity.

03/15/2026

Meet Rachel, Electrical Engineer at Helion. Rachel builds advanced hardware that powers our fusion test campaigns, delivering accurate electrical measurements that help quantify Helion’s machine performance.

03/11/2026

Today marks one year since our first community meeting in Chelan County, WA, the home of the world's first fusion power plant. Since then, we've secured permits, poured concrete, and built the foundations for Orion.

Building a power plant is only part of the story, though. From field trips and classroom visits to local partnerships and open dialogue, we know that what we build matters most when everyone can be a part of it.

Today, we’re proud to share our annual Community Impact Report for a look at the progress we’ve made together across Washington State over the past year.

Read the full report here: https://www.helionenergy.com/2025-community-impact-report/

03/09/2026

You may have noticed some epic plasma photos recently. They’re thanks to Justin, our AV specialist, even though he can’t actually stand behind the camera during fusion.

Instead, he’s built a remote network of 140+ cameras that catch sub-millisecond plasma bursts and the glowing fuchsia pulses you’ve seen us share.

03/04/2026

From neutron diagnostics to fusion power plant infrastructure, engineering takes a lot of different forms at Helion.

This World Engineering Day, we’re celebrating the people who solve problems at every scale, build with rigor, iterate with urgency, and make the impossible feel inevitable.

02/25/2026

Orion has a roof!

02/19/2026

Behind the scenes of loading the tritium modules for the first deuterium-tritium campaign.

02/18/2026

You can work out how many neutrons we made in this D-T pulse based on this photo. 👀

The astute eye will see lost pixels in the image, the white specks. This is what happens when neutrons hit the camera while it’s capturing an image.

02/13/2026

Polaris has made history as the first privately developed fusion energy machine to demonstrate measurable deuterium-tritium fusion and achieve plasma temperatures of 150 million degrees Celsius (MºC).

02/04/2026

Fusion happens inside plasmas under extreme conditions. That makes peering inside the machine, and truly understanding what’s going on, one of the toughest challenges in fusion science.

This component helps; it’s our new lens holder: a diagnostic tool designed to capture light from multiple angles and transform it into a clear, meaningful picture of the fusion plasma inside Polaris.

Knowing where the plasma is, how big it is, and how it moves is critical to improving performance. With sharper visibility comes smarter decisions, and faster progress toward achieving fusion power.

01/28/2026

How much load do Helion’s compression magnets face?

🗜️ 13,000 psi
🏋️ 100,000,000 lbs. of force
🚗 Weight of 25,000 cars
🚀 Thrust of 58 Falcon 9 rockets

In scientific units:
🗜️ 100 MPa
🏋️ 500 MN

01/20/2026

Bring on more manufacturing! Renovations are underway to install new machines that will scale our in-house production for fusion hardware.

01/13/2026

Introducing Tiny Merge, our new subsystem consisting of a vacuum vessel, electromagnets, and capacitors.

Integrated testbeds are a crucial component of design iteration. They allow us to conduct active research as we develop current and future designs.

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Everett, WA

Website

http://www.helionenergy.com/

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