General Fusion

General Fusion

Company developing a magnetized target fusion system to build the first commercially-viable fusion power plant

General Fusion is a company developing the first commercially-viable fusion power plant using magnetized target fusion technology.


General Fusion is located in Burnaby Canada and was established in 2002 by the companies Chief Scientist Michel Laberge. It's magnetized target fusion team consists of over 70 research and development professionals. The team includes Ph.D. scientists from leading fusion research institutions including L’École Polytechnique in France, the Culham Centre for Fusion Technology in the UK, the Joint Institute for High Temperatures at the Russian Academy of Sciences, and Kyushu University in Japan


General Fusion is aiming to combine it's magnetized target fusion technology with modern electronics, materials, and advances in plasma physics to develop a more practical path to fusion power compared to traditional tokamak approaches.

It uses a sphere filled with molten lead-lithium that is pumped to form a vortex. Then a pulse of magnetically-confined plasma fuel is injected into the vortex. An array of pistons around the sphere creates a pressure wave into the center of the sphere, compressing the plasma to fusion conditions. This process is then repeated, while the heat from the reaction is captured in the liquid metal and used to generate electricity via a steam turbine.

This approach does not require the lasers or giant magnets found in other fusion approaches. Also, the liquid metal wall absorbs energy from the fusion reaction which can then be pumped to heat exchangers. The liquid metal also protects the solid outer wall from damage and can be combined with liquid lithium to breed tritium within the power plant.


General Fusion investors include energy venture capital funds and the Canadian Federal Government. Its latest investment was a $65 million funding round, led by the Singapore-based investment firm, Temasek. The company will use the funds to start building a demonstration power plant, testing its fusion technology on a commercially-relevant scale.


General Fusion collaborates with leading research institutions around the world including:

  • McGill University
  • Microsoft
  • Princeton Plasma Physics Laboratory
  • Hatch
  • Queen Mary University of London


December 17, 2019
General Fusion raises $65 million in Series E funding round led by Temasek Holdings with participation from Business Development Bank of Canada, DLF Group, Gimv, I2BF Global Ventures, Disruptive Technology Advisers, Hatch, and several individual impact investors.
December 17, 2019
General Fusion raises $85 million CAD Series E

General Fusion's round was led by Singapore-based investment firm Temasek Holdings Private Limited, and received additional support from new investors like the Cleantech Practice of Business Development Bank of Canada, the DLF Group, Gimv, I2BF Global Ventures, Disruptive Technology Advisers, Hatch, and several individual impact investors. This Series E brings the company’s total funding to date to over $263 million CAD.

May 5, 2011
General Fusion raises a $19,500,000 series B round from Bezos Expeditions, Braemar Energy Ventures, Business Development Bank of Canada, Cenovus Energy and Entrepreneurs Fund.
August 4, 2009
General Fusion raises a $13,750,000 series A round from Entrepreneurs Fund.

Funding rounds

Funding round
Funding type
Funding round amount (USD)
Funding round date
General Fusion Series B round
May 5, 2011
4 Results
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Brian Berzin

Vice President, Strategic Initiatives

Carol M. Browner

Business Advisory Council

Christofer M. Mowry

Chief Executive Officer & Director

Donald L. Runkle

Business Advisory Council

Dr. Fred Buckman

Board of Directors Chairman

Dr. Michel Laberge

Founder and Chief Scientist

Dr. Osamu Motojima

Science Advisory Council

Dr. Thomas R. Jarboe

Science Advisory Council

Edward Moses

Science Advisory Council

Gerald L. Kulcinski

Science Advisory Council

Jean-François Béland

Vice President, Corporate Affairs and Strategy – Canada

Klaas de Boer

Board of Directors

Kurt Schoenberg

Science Advisory Council

Mark Dudzinski

Business Advisory Council

Matt Miles

Vice President, Business Development and International Government Relations

Michael Delage

Chief Technology Officer

Michael Dunne

Science Advisory Council

Mike Donaldson

Vice President, Fusion Island Engineering

Further reading


Documentaries, videos and podcasts


Rethink Fusion: An introduction to General Fusion

July 29th, 2014




Jonathan Shieber
January 14, 2021
In a brief announcement today, the Canadian nuclear fusion technology developer General Fusion announced that the investment firm created by Shopify founder Tobias Lütke has joined the company's cap table. The size of the investment made by Lütke's Thistledown Capital was not disclosed, but with the addition, General Fusion has the founders of the two [...]
Isabelle Kirkwood
December 17, 2019
Vancouver-based cleantech company, General Fusion, has announced the close of an $85 million CAD Series E round.
May 2, 2019
The Economist
Reactor designs are inspired by everything from smoke rings to shrimps


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