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Fusion

All articles tagged with #fusion

The Sun’s Self-Regulating Thermostat: Fusion Keeps the Light On, Gravity Keeps It Going
science24 days ago

The Sun’s Self-Regulating Thermostat: Fusion Keeps the Light On, Gravity Keeps It Going

Fusion barely powers the Sun; its gravity continuously compresses the core, heating it just enough to keep fusion in a self-regulating balance with hydrostatic equilibrium. If fusion stopped, the Kelvin-Helmholtz mechanism would let the Sun slowly shrink and release heat, keeping it shining far longer as a natural thermostat with no moving parts. The Sun actually heats up as it loses energy, and internal changes propagate extremely slowly. Part 3 will trace a photon’s 100,000-year journey out of the Sun.

DOE Unveils Roadmap to Fast-Track Fusion Power by the Mid-2030s
technology1 month ago

DOE Unveils Roadmap to Fast-Track Fusion Power by the Mid-2030s

The U.S. Department of Energy released the finalized Fusion Science and Technology Roadmap to accelerate fusion energy development and commercialization, uniting science, infrastructure, workforce, and public-private partnerships under a Build-Innovate-Grow strategy to support fusion pilot plants and mid-2030s commercial power; progress hinges on future appropriations and partnerships rather than guaranteed funding, with AI/HPC and strong industry collaboration driving the effort.

Fusion startup eyes grid power by the 2030s with a Virginia plant plan
technology2 months ago

Fusion startup eyes grid power by the 2030s with a Virginia plant plan

Commonwealth Fusion Systems is advancing its donut-shaped tokamak in Devens, MA, aiming to produce net energy and plug a future 400‑MW fusion plant into PJM’s grid by the 2030s. The demonstration device is about 75% complete and could be operational next year, with the Fall Line Fusion Power Station in Virginia envisioned next. Google and Eni have already secured buyers, and while the grid interconnection process will take years, proponents say fusion could become a grid-ready technology sooner than some expect, despite ongoing challenges in sustaining continuous fusion power.

HTS coil-winding breakthrough nudges fusion toward commercial power
energy5 months ago

HTS coil-winding breakthrough nudges fusion toward commercial power

Japan’s Helical Fusion has completed a one-of-a-kind coil manufacturing machine, built with Sugino Machine, to wind high-temperature superconducting cables into spiral coils for the Helix HARUKA reactor. The device targets a key manufacturing bottleneck to enable efficient production of HTS coils, a step toward commercially viable fusion energy by the 2030s, with on-site assembly to begin later this year and demonstrations planned around 2030 to prove net electricity, steady operation, and maintainability.

China’s 'Artificial Sun' Breaks Fusion Density Limit, Advancing Clean Energy
science6 months ago

China’s 'Artificial Sun' Breaks Fusion Density Limit, Advancing Clean Energy

China's 'artificial sun' reactor, EAST, has broken a major fusion limit by maintaining plasma stability at densities 1.3 to 1.65 times beyond the Greenwald Limit, advancing nuclear fusion research and bringing humanity closer to potential clean, limitless energy. This achievement, published in Science Advances, demonstrates progress in overcoming key challenges in fusion technology, which could inform future reactors like ITER.

Fusion Breakthrough: Magnet Capable of Lifting a Warship Paves Way for ITER Completion
science11 months ago

Fusion Breakthrough: Magnet Capable of Lifting a Warship Paves Way for ITER Completion

The ITER project has achieved a major milestone by completing a powerful central solenoid magnet capable of levitating an aircraft carrier, which is crucial for sustaining the superheated plasma needed for nuclear fusion. This international effort demonstrates significant progress toward developing clean, sustainable energy, with the first reactor operation expected by 2035, despite ongoing technical challenges.