Fusion energy: Wishing upon a star in a jar — Introducing 'Positive Charge' from GeekWire

Harnessing the power of the sun through fusion energy represents a high-stakes technological race, with Seattle-based startups Helion Energy and Zap Energy leading the charge toward commercialization. Helion aims to deliver fusion power to the grid by 2028, utilizing a seventh-generation prototype, Polaris, while simultaneously developing a smaller, more nimble device called TinyMerge to refine engineering challenges. Conversely, Zap Energy employs a Z-pinch physics approach and a liquid bismuth cooling system, recently pivoting to incorporate fission technology as a strategic revenue hedge to sustain long-term fusion development. Despite significant private investment and ambitious timelines, achieving a net energy gain remains a formidable hurdle. Experts like Laura Berzak Hopkins emphasize that while fusion remains scientifically complex, ongoing innovations in plasma control and magnetic confinement continue to push the industry toward a potential breakthrough.