Articles about Fusion

With a headcount topping 800, Helion opens Seattle office in pursuit of fusion energy

Helion Energy has opened a downtown Seattle office as its headcount hits 800 employees, adding to its five-building Everett headquarters and its Malaga, Wash., site, where the fusion startup is building its Orion generator facility. The company, which has raised more than $1.5 billion, is racing to get Orion operational within two years to meet a contract to supply fusion energy to a Microsoft data center. Read More

Event Calendar

2026 Washington State Fusion Week

Formerly Seattle Fusion Week, CleanTech Alliance’s annual fusion energy convening moves across three Washington cities, bringing together fusion companies, elected… Read More

As General Fusion makes historic Nasdaq debut, report shows global funding surged to $4.5B

General Fusion’s stock is trading up after it became the first fusion energy company to go public on a major… Read More

General Fusion set to become the first publicly traded fusion stock on a major exchange

British Columbia-based General Fusion on Friday completed its deal to become first publicly traded fusion stock on a major exchange.… Read More

Inside the race to power AI data centers with fusion energy — and the surprise detours along the way

While some tech giants are looking to the stars for nearly limitless clean electricity, the actual path to commercial fusion energy involves an unexpected down-scaling, an expansion to traditional nuclear power, and a tight 2028 deadline. Go inside Seattle-area fusion startups Helion and Zap as they try to harness the reactions that power the sun. Read More

General Fusion announces first steps to deploying its clean energy in Italy as tech uncertainty remains

British Columbia-based General Fusion is charging ahead with its goal of commercializing fusion energy, creating a roadmap for a deployment in Italy, hitting new temperature goals and pursuing an IPO through a SPAC. The progress continues despite setbacks in recent years that include layoffs, a public plea for funding and ongoing uncertainty about the viability of its technology. Read More

Helion secures world’s first regulatory licenses for fusion power plant being built in Washington

Helion Energy announced Tuesday that it’s the first company in the world to receive regulatory licenses for a fusion power… Read More

Helion makes big bet on ‘Tiny Merge’ fusion testbed to meet aggressive Microsoft timeline

Beyond massive curtains inside its Everett, Wash., R&D facility, Helion is betting that a downsized testbed can answer key technology questions as the company races to meet deadlines. Read More

Zap Energy’s nuclear double play: Fusion startup adds traditional fission to its lineup, in industry first

Fusion startup Zap Energy is adding fission to its quest for nuclear power, naming Zabrina Johal as CEO to lead the new dual-purpose effort. Read More

The fusion pivot: Helion CEO David Kirtley’s journey from starships to sustainable star power

Before he was trying to bottle the sun in Everett, Wash., David Kirtley was building rockets. Now, he’s adapting those space-based technologies in the race for fusion energy. Read More

Avalanche Energy lands share of $5.2M DOD award to develop long-lasting ‘nuclear batteries’

Forget charging your laptop — fusion startup Avalanche Energy is part of a team developing a roughly 10-pound nuclear battery designed to provide continuous power for months. Read More

Report: Helion is working on a massive fusion power deal with OpenAI

The Seattle-area fusion startup Helion Energy is negotiating a deal to supply OpenAI with a staggering 5 gigawatts of power by 2030 — if its technology works. Read More

Helion reaches record 150 million degrees Celsius as it strives for ambitious commercial fusion launch

Helion announced two milestones: hitting a record temperature of 150 million degrees Celsius and being the first private venture to use radioactive tritium. Read More

Soviet secrets and Star Wars prototypes: Avalanche raises $29M for its desktop-sized power quest

Seattle startup Avalanche Energy will use the funding to support its push toward fusion power and to help launch a commercial-scale testing facility for fusion technologies. Read More

B.C. energy company General Fusion aims to go public via a $1B SPAC deal

Less than a year after layoffs and a public plea by its CEO for new investments, General Fusion announced a $1 billion deal with Spring Valley Acquisition Corp. III to go public. Read More

New filing: Seattle fusion startup Avalanche Energy raising fresh cash

Avalanche and dozens of companies around the world are vying for scientific breakthroughs that would allow them to generate electricity from fusion reactions on a commercially viable scale. Read More

Donald Trump as fusion entrepreneur? Washington state energy rivals react to $6B deal

The $6 billion merger between TAE and Trump Media sent a shock wave through the fusion industry — and is drawing skepticism from Washington’s fusion hub. Read More

Zap Energy exceeds Mariana Trench-level pressures in pursuit of limitless clean power

Zap Energy has generated pressure that’s 10 times stronger than the bottom of the Mariana Trench, a new milestone in its race for fusion power. Read More

Washington energy startup lands DOE funding for researching liquid metal walls in fusion generators

Clean energy startup ExoFusion today announced it has received funding from the U.S. Department of Energy through its Fusion Innovative Research Engine (FIRE) program. Read More

Helion gives behind-the-scenes tour of secretive 60-foot fusion prototype as it races to deployment

In the city of Everett, inside a vault built with thick concrete blocks is Polaris, a machine that could change the world. Read More

Helion lands permit for constructing reactor building at Washington site that aims to be first fusion plant

Helion Energy has secured a permit unlocking the next phase of construction for what it hopes will be the world’s first commercial fusion plant. Read More

New frontier for Seattle startups: Space, fusion, and battery companies buoy region’s VC activity

Companies developing rockets, fusion energy, and next-generation batteries account for a large share of total venture capital raised in the Seattle region over the past several months, according to GeekWire’s regularly updated fundings list. Read More

Fusion