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Thea Energy · Site to be selected (2026) · USA (other)
Large integrated stellarator using Thea's planar-coil magnet arrays, the step before its Helios power plant (construction targeted before 2030). Funded by a $100M Series B in May 2026; site to be chosen later in 2026.
Power
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Fusion · Research and prototype
Storage
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energy capacity
Online
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not announced
Capital committed
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closed or awarded
Capital pending
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conditional or under review
How it works
Also a ring of magnets, but twisted, so the coils alone shape the plasma. No current has to be driven through the plasma, which makes steady operation easier; the coils are harder to design and build.
OPEN IN 3D →Others on this approach
No project-level financing disclosed yet.
Grid connection, permits, contractors and cost not researched yet for this project.
Not applicable: test or demonstration machine, sells no power
STEP 2/4 · AT RISK REBCO superconducting tapeHigh-temperature superconducting magnets use a rare-earth barium copper oxide layer.
STEP 3/3 · WATCH Copper-intensive technologiesMagnet coils and stabilizers; also every grid and transmission project.
Developer
Place