Tokamak Energy builds compact spherical tokamaks that use high‑temperature superconducting magnets to generate strong magnetic fields for plasma confinement, achieving fusion‑relevant temperatures in a smaller, lower‑cost device. Their modular approach and reduced cryogenic requirements aim to provide scalable, clean power solutions for utilities, governments, and industrial partners.
Funding
$125M raised to dateRaised to date based on public sources. This may differ from the amount the company actually raised and is based only on what is publicly available on the internet.
4OEXLFounders
Product
Problem
Current large‑scale energy generation relies on fossil fuels and nuclear fission, which produce greenhouse‑gas emissions or generate long‑lived waste, and existing fusion research devices are massive, costly, and have not yet demonstrated a path to commercial power.
Solution
Tokamak Energy addresses these challenges by developing compact spherical tokamaks that use high‑temperature superconducting (HTS) magnets to create the strong magnetic fields needed for plasma confinement in a much smaller, more affordable device. Their HTS technology operates at higher temperatures than conventional superconductors, reducing cooling requirements and enabling higher magnetic field strengths. The company’s ST40 prototype has achieved plasma temperatures of 100 million °C, demonstrating the feasibility of reaching fusion‑relevant conditions in a compact form factor. By integrating advanced magnet design, modular engineering, and strategic partnerships, Tokamak Energy aims to deliver a scalable fusion power solution that can be commercialized in the 2030s.
Target Audience
Primary customers include utility companies, government energy agencies, and industrial partners seeking clean, on‑demand power, as well as research institutions and fusion‑technology developers requiring advanced HTS magnet and compact tokamak solutions.
Features
- High‑temperature superconducting (HTS) magnet system delivering up to 26.2 tesla field strength, tested at 4 K
- Compact spherical tokamak architecture (ST40) that reaches 100 million °C plasma temperature
- Reduced cryogenic infrastructure due to HTS operation at higher temperatures, lowering capital and operating costs
- Modular design allowing incremental scaling from research prototypes to commercial power‑plant units
- Integrated engineering platform combining plasma physics, magnet technology, and systems integration for rapid development cycles
- Strategic collaborations with industry and research institutions to accelerate technology validation and deployment