Pacific Fusion
American fusion-based energy company
From Wikipedia, the free encyclopedia
Pacific Fusion is an American energy company focused on developing fusion-based power sources,[1] using a pulser-driven approach to high-yield, high-gain inertial fusion.[2][3][4][5] The company uses an advanced pulsed power driver known as the impedance-matched Marx generator (IMG), which was co-invented by Pacific Fusion's chief technology officer, Keith LeChien.[6][non-primary source needed]
Carrie von Muench
Will Regan
Eric Lander
Leland Ellison
 | |
| Type | Private |
|---|---|
| Industry | Fusion power |
| Founded | 2023 |
| Founders | Keith LeChien Carrie von Muench Will Regan Eric Lander Leland Ellison |
| Headquarters | , |
| Website | pacificfusion |
Background
Pacific Fusion was co-founded in 2023 by Will Regan, Keith LeChien, Eric Lander, Carrie von Muench, and Leland Ellison.[7] Pacific Fusion's founding chief executive officer is Eric Lander.[3] The company is pursuing pulser-driven inertial confinement fusion, a process that aims to achieve high-gain fusion by using fast-rising electrical current pulses to electromagnetically compress small containers of deuterium-tritium fuel (e.g., MagLIF).[2][3][4][5]
History
In 2024, Pacific Fusion raised approximately $900 million in Series A funding led by General Catalyst, which included participation from Breakthrough Energy Ventures, Citadel founder Ken Griffin, Stripe co-founder Patrick Collison, venture capitalist John Doerr, and Microsoft’s head of consumer AI business, Mustafa Suleyman. The company’s funding will be provided in stages upon meeting pre-determined milestones. Patrick Collison, General Catalyst partner Hemant Taneja, and former Google chief executive officer Eric Schmidt all joined the company’s board of directors.[1]
In September 2025, Pacific Fusion selected Mesa del Sol in Albuquerque, New Mexico, as the location for its $1 billion research and manufacturing facility. The facility will house the company’s Demonstration System, which has the goal of achieving net facility gain, or generating more fusion energy output from a reaction than the amount of energy required to drive the system.[13] Pacific Fusion partnered with local universities to create training programs specific to its workforce, as its new campus is expected to add 200 permanent jobs and approximately 1,000 construction jobs.[14]
In December 2025, Pacific Fusion's first build center opened in Los Lunas, New Mexico. The site will build the components required for the company's fusion system.[15] Pacific Fusion’s headquarters and its research and development centers remain based in California.[16]
In February 2026, Pacific Fusion announced the results from a series of experiments performed at the Sandia National Laboratories, demonstrating a modified target design that simplifies the company's fusion targets and the maintenance requirements of its fusion system.[5]
In June 2026, Pacific Fusion announced it had achieved its second set of technical milestones related to its fusion system, demonstrating that a scaled module prototype delivered more than 440 GW of peak output power and approximately 1.1 MV peak voltage in ultra-fast pulses, delivering the "performance required to ultimately drive fusion conditions".[17]