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The Stellarator Reborn

Breakthrough fusion technology designed for operation and scale

We’ve radically evolved the stellarator, enabling systems to be simpler and more practical than previously thought possible. With this groundbreaking technology, Thea Energy is changing the trajectory of fusion energy.

earth_Fusion Technology

thea energy Fusion technology

Breakthrough fusion technology designed for operation and scale

We’ve radically evolved the stellarator, enabling systems to be simpler and more practical than previously thought possible. With this groundbreaking technology, Thea Energy is changing the trajectory of fusion energy.

Breakthrough fusion technology

Stable, steady-state magnetic confinement fusion

The stellarator is a highly efficient power plant architecture

Steady-state

Inherently stable magnetic confinement with no risk of disruptions.

Full 3-dimensional field control

Dynamic correction of system operating conditions.

Highly efficient

No requirement for current drive systems, with low recirculating power.

Simplified system and magnet
architecture

We’ve eliminated the longstanding Achilles’ heel of the stellarator: system complexity.

Stable, steady-state magnetic confinement fusion

The stellarator is a highly efficient power plant architecture

Steady-state

Inherently stable magnetic confinement with no risk of disruptions.

Highly efficient

No requirement for current drive systems, with low recirculating power.

Full 3-dimensional field control

Dynamic correction of system operating conditions.

Simplified system and magnet architecture

We’ve eliminated the longstanding Achilles’ heel of the stellarator: system complexity.

The stellarator reborn

Prior iterations of the stellarator were much more complex than other fusion systems such as the tokamak. This was a limiting factor–until now.

Our proprietary stellarator technology eliminates the intricate 3D magnet coils required in all other proposed stellarator architectures. These modular coils are extremely difficult and expensive to manufacture, assemble, and maintain.

By transferring the complexity of 3D magnetic fields to modern electronic control systems, we leverage the significant developments in computing and control systems. The result is a radically simplifying (and cost-reducing) new paradigm.

Our stellarator architecture and magnet systems can be built in simpler, less expensive ways, while solving long-standing barriers to fusion energy.

Prior iterations of the stellarator were much more complex than other fusion systems such as the tokamak. This was a limiting factor–until now.

Our proprietary stellarator technology eliminates the intricate 3D magnet coils required in all other proposed stellarator architectures. These modular coils are extremely difficult and expensive to manufacture, assemble, and maintain.

By transferring the complexity of 3D magnetic fields to modern electronic control systems, we leverage the significant developments in computing and control systems. The result is a radically simplifying (and cost-reducing) new paradigm.

Our stellarator architecture and magnet systems can be built in simpler, less expensive ways, while solving long-standing barriers to fusion energy.

Introducing Eos

Our first system, Eos, is a neutron source stellarator capable of commercial operation for the production of various isotopes including tritium. Eos is the only first-generation fusion system prototypical of a power plant. Our development roadmap is not contingent on further scientific breakthroughs. No miracles required.

Large-scale planar coil stellarator

Our breakthrough stellarator architecture uses computer-controlled arrays of HTS planar coils.

Capable of near-term commercial operation

D-D fusion for the production of tritium and other isotopes including medical radioisotopes.

Dynamic field control​

We can optimize machine parameters and dynamically change operating points in real-time.

Simplified commercial system maintenance and operation

Our planar coil arrays allow for sector maintenance, minimizing downtime.

Large-scale planar coil stellarator

Our breakthrough stellarator architecture uses computer-controlled arrays of HTS planar coils.

stellarator reborn

Capable of near-term commercial operation

D-D fusion for the production of tritium and other isotopes including medical radioisotopes.

D-D fusion_Stellarator

Dynamic field control

We can optimize machine parameters and dynamically change operating points in real-time.

Dynamic field control​_Stellarator

Simplified commercial system maintenance and operation

Our planar coil arrays allow for sector maintenance, minimizing downtime.

Fusion Technology_Stellarator

Thea Energy fusion power

Our proprietary stellarator architecture enables safe and reliable baseload fusion energy generation at a lower capital cost. We’re accelerating commercialization of fusion energy to curtail climate change and provide for the long-term energy needs of humanity.

On-the-grid power generation
On-the-grid power generation

Our planar coil stellarator technology enables a more practical power plant design, with on-the-grid operation in the 2030s.

fusion power plants across the world
Rapid commercialization and scaling of fusion power plants across the world

Thea Energy’s modular system architecture enables simpler manufacturing and construction of fusion power plants, allowing for the rapid deployment of carbon-free energy at scale.

First fusion
power plants

commercialization_fusion power plants
Rapid commercialization and scaling of fusion power plants across the world

Thea Energy’s modular system architecture enables simpler manufacturing and construction of fusion power plants, allowing for the rapid deployment of carbon-free energy at scale. 

On-the-grid power generation
On-the-grid power generation

Our planar coil stellarator technology enables a more practical power plant design, with on-the-grid operation in the 2030s.

Our proprietary stellarator architecture enables safe and reliable baseload fusion energy generation at a lower capital cost. We’re accelerating commercialization of fusion energy to curtail climate change and provide for the long-term energy needs of humanity.

The path to commercial fusion

2020

Completed

2024

2030

ARPA-E

  • Thea Energy spun out from Princeton Plasma Physics Lab / Princeton University following the successful design and prototype of its magnet array systems.
  • Paradigm shift in stellarator technology via the simplification of magnet system hardware.
helios power plant

Eos

  • Not contingent on further scientific breakthroughs.
  • Prototypical of a pilot power plant with steady-state operation.
helios power plant

Helios Power Plant

  • On-the-grid electricity generation.
  • Scale-up of Eos: same system architecture.
helios power plant

The path to commercial fusion

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