This week on the show, we're sharing the debut of Positive Charge, a new GeekWire podcast from reporter Lisa Stiffler and producer Laura Scott about the innovations that could help save the planet. 

In this episode, they dig into the high-stakes race to harness the power of the sun and make fusion energy real, visiting two Seattle-area startups chasing this dream, and asking whether limitless clean power is finally within reach.

Also out this week: their debut episode on the "forever chemicals" in our water and the companies figuring out how to destroy them. Follow Positive Charge wherever you get your podcasts, or at geekwire.com/positivecharge.

Positive Charge is presented with support from Amazon Sustainability.

Sources and references
David Kirtley, Helion Energy, CEO and co-founder
Manav Singh, Helion Energy, director of electrical engineering 
Matthew Thompson, Zap Energy, senior vice president of fission technology and former vice president of systems engineering and pulsed power
Laura Berzak Hopkins, Princeton Plasma Physics Laboratory, associate laboratory director for Strategy and Partnerships, and deputy chief research officer

GeekWire’s related coverage:
Helion gives behind-the-scenes tour of secretive 60-foot fusion prototype as it races to deployment
Helion makes big bet on ‘Tiny Merge’ fusion testbed to meet aggressive Microsoft timeline
Inside Zap: Fusion pioneer tries to build ‘a star in a jar’ to unlock abundant clean energy
Zap Energy’s nuclear double play: Fusion startup adds traditional fission to its lineup, in industry first

This week on the show, we're sharing the debut of <a href="https://www.geekwire.com/positivecharge/">Positive Charge</a>, a new GeekWire podcast from reporter Lisa Stiffler and producer Laura Scott about the innovations that could help save the planet.&nbsp;
In this episode, they dig into the high-stakes race to harness the power of the sun and make fusion energy real, visiting two Seattle-area startups chasing this dream, and asking whether limitless clean power is finally within reach.
Also out this week: their <a href="https://www.geekwire.com/2026/forever-chemicals-are-everywhere-but-these-companies-are-out-to-destroy-them/">debut episode</a> on the "forever chemicals" in our water and the companies figuring out how to destroy them. Follow Positive Charge wherever you get your podcasts, or at <a href="https://www.geekwire.com/positivecharge/">geekwire.com/positivecharge</a>.
Positive Charge is presented with support from Amazon Sustainability.
Sources and references
<ul>
<li aria-level="1"><a href="https://www.linkedin.com/in/david-kirtley-490b8230/">David Kirtley</a>, Helion Energy, CEO and co-founder</li>
<li aria-level="1"><a href="https://www.linkedin.com/in/manavsingh0/">Manav Singh</a>, Helion Energy, director of electrical engineering&nbsp;</li>
<li aria-level="1"><a href="https://www.linkedin.com/in/drmatthewthompson/">Matthew Thompson</a>, Zap Energy, senior vice president of fission technology and former vice president of systems engineering and pulsed power</li>
<li aria-level="1"><a href="https://www.pppl.gov/people/laura-berzak-hopkins">Laura Berzak Hopkins</a>, Princeton Plasma Physics Laboratory, associate laboratory director for Strategy and Partnerships, and deputy chief research officer</li>
</ul>
GeekWire&rsquo;s related coverage:
<ul>
<li aria-level="1"><a href="https://www.geekwire.com/2025/helion-gives-behind-the-scenes-tour-of-secretive-60-foot-fusion-prototype-as-it-races-to-deployment/">Helion gives behind-the-scenes tour of secretive 60-foot fusion prototype as it races to deployment</a></li>
<li aria-level="1"><a href="https://www.geekwire.com/2026/helion-makes-big-bet-on-tiny-merge-fusion-testbed-to-meet-aggressive-microsoft-timeline/">Helion makes big bet on &lsquo;Tiny Merge&rsquo; fusion testbed to meet aggressive Microsoft timeline</a></li>
<li aria-level="1"><a href="https://www.geekwire.com/2025/go-inside-zap-a-seattle-area-company-trying-to-build-a-star-in-a-jar-to-unlock-abundant-clean-energy/">Inside Zap: Fusion pioneer tries to build &lsquo;a star in a jar&rsquo; to unlock abundant clean energy</a></li>
<li aria-level="1"><a href="https://www.geekwire.com/2026/zap-energys-nuclear-double-play-fusion-startup-is-the-first-to-add-traditional-atomic-power-to-its-lineup/">Zap Energy&rsquo;s nuclear double play: Fusion startup adds traditional fission to its lineup, in industry first</a></li>
</ul>

GeekWire brings you the week's latest technology news, trends and insights, covering the world of technology from our home base in Seattle. Our regular news podcast features commentary and analysis from our editors and reporters, plus interviews with special guests.

GeekWire reporters John Cook, Todd Bishop and guests talk about the latest tech news and trends.