Fusion is the process that powers the sun and stars. Stellarex is advancing fusion as the ultimate decarbonized energy source—delivering sustainable, reliable, and affordable baseload power for a carbon-free future.
A Princeton University spin‑off, Stellarex unites three scientific founders with more than 120 years of combined leadership in fusion science and engineering across laboratories in the USA, UK, Germany, and France.
Stellarex leverages a simplified Stellarator approach to reduce technical risk and uses staged demonstration devices to validate technology, de‑risk scale‑up, and accelerate the commercial deployment of fusion power.
Why Fusion?
All forms of energy on Earth originate from fusion. By harnessing this same process, fusion energy offers a transformative path toward clean, abundant, and dependable power at global scale.
Produces energy without carbon emissions during operation, supporting deep decarbonization of the global energy system.
Fusion reactions cannot run out of control; if operating conditions change, the reaction naturally shuts down.
Delivers continuous, reliable power—unaffected by weather, seasons, or time of day.
Uses fuel derived from widely available resources, offering a virtually limitless energy source.
Generates no long-lived radioactive waste, reducing long-term environmental and storage challenges.
Designed to meet growing global energy demand, from regional grids to large-scale power systems.
Strategic Partnerships
To bring fusion energy to Earth, Stellarex collaborates with leading international fusion R&D institutions, national laboratories, and major power operators, including:
Stellarex is a proud member of
The mission of the Centre for Fusion Energy is to serve as the nation’s collaboration platform enabling government, industry, and academia to accelerate fusion energy development in Canada by strengthening technical know‑how, delivering fusion demonstration devices, and preparing a fusion‑ready workforce.
MOU supports the commercialization of fusion energy technology OTTAWA, ON and OXFORD, United Kingdom, May 13, 2026 /PRNewswire/ — Stellarex Energy and the United Kingdom Atomic Energy Authority (UKAEA) are …
New centre will leverage Ontario’s nuclear advantage to advance clean energy research and keep Ontario competitive in the global economy PICKERING — The Ontario government is strengthening the province’s energy …
The Centre for Fusion Energy is a partnership between the Government of Canada, the Government of Ontario, Atomic Energy of Canada Limited, Canadian Nuclear Laboratories, Ontario Power Generation, and Stellarex …