ABOUT FAST
FAST:
FUSION BY ADVANCED
SUPERCONDUCTING
TOKAMAK
OUR TECHNOLOGY
FAST is the project to extract fusion energy from burning plasma and to comprehensively demonstrate both plasma sustainment and the associated engineering challenges.
Our goal is to achieve the first demonstration of fusion power generation in the 2030s.
FUSION ENERGY
The Ultimate
Power Source
Fusion energy is what gives the stars their seemingly limitless power.
A single fusion reaction between deuterium (D) and tritium (T) releases 17.6 MeV of energy, which is an enormous amount when added up over time.
Deuterium can be extracted from seawater, and tritium can be self-multiplied, giving it geopolitical advantages of securing fuel domestically. Because no greenhouse gas is contained in the fuel or exhaust, it also contributes to a carbon-neutral society.
Since fusion energy does not produce high concentrations of radioactive waste, there is optimism for its development as a permanent next-generation energy source.
OUR TECHNOLOGY
Shaping the future of energy by surpassing technical frontiers
We’re accelerating development toward the commercialization of fusion energy by aiming for a demonstration of power generation in the 2030s and tackling the following technical challenges:
D-T burning demonstration
Achieving, sustaining, and controlling burning plasma with tritium—the core technology of fusion energy.
Tritium production and fuel cycle demonstration
Breeding, extracting, recovering, and reusing tritium fuel to establish a sustainable cycle.
System integration
Developing and demonstrating plant technologies to safely and reliably integrate and operate a fusion energy system.
Uniting the latest engineering innovations in the Tokamak
FAST adopts the tokamak system, a proven approach backed by extensive experimental experience. This design offers high reliability while effectively managing costs and technical risks. We are integrating state-of-the-art reactor engineering technologies—such as high-temperature superconducting magnets and advanced blankets—to build an innovative, highly feasible, low-aspect-ratio tokamak reactor.
Specification of FAST
FAST is a tokamak with HTS coils, making it a compact, economical Fusion Pilot Plant. This design will have the following specifications, which will inform the development tests necessary for early deployment.
Base
50MW
Power Generation
200MW
(D–T = deuterium–tritium)
Base
0.1MW/m²
Power Generation
0.5MW/m²
Neutron wall loading
Base
1,000
seconds
Power Generation
10
seconds
Approx. discharge duration
Base
Q~2
Power Generation
Q~2
Fusion energy gain factor
| Basic operation | Power General Demonstration Operation | |
|---|---|---|
| Major Radius | 4.0m | 4.0 m |
| Minor Radius | 1.35m | 1.35 m |
| Elongation | 1.8 | 1.95 |
| Magnetic Field Strength | 5.0 T | 5.0 T |
| Magnet | HTS Coils | HTS Coils |
| Fuel | Deuterium and Tritium | Deuterium and Tritium |
| External heating systems | NBI, ECH | NBI, ECH |
| Ion Temperature | 約 20 keV（2millionC） | 約 20 keV（2millionC） |
| Line Average Density | 0.4 × 10²⁰ m⁻³ | 1.0 × 10²⁰ m⁻³ |
| Normalized Beta | 1.5–2.0 | 1.5–2.0 |
| Plasma Current | 8.5 MA | 10.0 MA |
| Self-driven Current Fraction | 0.16 | 0.2 |
| Confiinement enhancement factor | 1.2 | 1.2 |
| Energy Confiinement Time | 1.5seconds | 2.5seconds |
Project Timeline
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