The class called it the ARC (affordable, robust, compact) fusion reactor. If SPARC requires 90 MW of electricity to heat the plasma, and it requires only an additional 1 MW of power to operate the remainder of the machine, the device, at best, will have a net output of 9 MW of thermal power from fusion. However, if the reactor achieves its highest expected output — 100 MW of fusion power — and if the researchers do not have secret plans that will enable them to convert electrical power into injected thermal power at an unprecedented efficiency, and if the remainder of the reactor miraculously requires the input of only one MW of electricity, SPARC will produce, in pulses of about 10 seconds, a grand total of 9 MW of fusion heat. Instead, it developed plans for a new reactor that would be funded by private investment. March 11, 2019/Molly Lempriere/Power-Technology.com: The Massachusetts Institute of Technology has announced that its SPARC reactor could begin producing energy from nuclear fusion by 2025, but it is a small reactor and likely to produce between just 50 MW and 100 MW of power. Had White and Whyte said “fusion device to make more fusion power than it consumes,” their claim would have been misleading but technically legitimate. Whyte is the director of the Plasma Science and Fusion Center. In the absence of public funding from U.S. taxpayers, MIT decided not to continue operating the reactor. The ARC has a conventional advanced tokamak layout, as opposed to other small … Investors in the MIT initiative include Future Ventures, Khosla Ventures, Lowercase Capital, Moore Strategic Ventures, Safar Partners, Schooner Capital, Starlight Ventures, Eni, and Breakthrough Energy Ventures. Nevertheless, the value for the total input electrical power required to operate SPARC is important because it will provide a real indication of the progress toward the ultimate technical milestone: practical net power output from a fusion reactor. Commonwealth Fusion Systems (CFS) was founded in mid-2018 as a spin-off from the Massachusetts Institute of Technology’s Plasma Science and Fusion Center. ITER Council Meeting Begins Tomorrow, #59. March 3, 2018/Hannah Devlin/The Guardian: The experimental reactor is designed to produce about 100 MW of heat. CFS’s Sparc machine could pave the way for the world’s first commercial fusion reactor. A credit line must be used when reproducing images; if one is not provided SPARC would be the size of existing mid-sized fusion devices, but with a much stronger magnetic field. Starting in 1993, MIT has been running a tokamak reactor called C-Mod only for experi… Once this work is successful, these magnets will be used to build SPARC, the first net-energy controlled fusion experiment. Nobel Laureate Foresaw ITER is Bait-and-Switch, 2004 Article Reveals, 44. Zachary Hartwig joined the Department of Nuclear Science and Engineering in January 2017 as an assistant professor and holds a co-appointment at the MIT Plasma Science and Fusion Center (PSFC). This smaller-faster-cheaper approach is embodied in the SPARC reactor concept, which was developed at the PSFC and forms the foundation of CFS’s aggressive effort to demonstrate energy-gain fusion by the mid-2020s and produce practical reactor designs by the early 2030s. New Energy Times asked Martin Greenwald, a founding member of the SPARC team and the deputy director of the MIT Plasma Science and Fusion Center, for that value. Study shows ambitious U.S. startups are not in decline — but timing and location matter. The SPARC design, though about twice the size as MIT’s now-retired Alcator C-Mod experiment and similar to several other research fusion machines currently in operation, would be far more powerful, achieving fusion performance comparable to that expected in the much larger ITER tokamak being built in France by an international consortium. Now she would be working on MIT’s latest fusion experiment, SPARC. Superconductor technology for smaller, sooner fusion MIT-CFS team’s demonstration of new superconducting cable is a key step on the high-field path to compact fusion. No unexpected impediments or surprises have shown up, and the remaining challenges appear to be manageable. SPARC is not designed to produce electricity; the output will be measured only in the thermal power produced by the fusion plasma. 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