Heralding a fusion breakthrough and “a new era” for energy

September 13, 2021, 3:00PMANS Nuclear Cafe

Paul Dabbar, former undersecretary for science at the Department of Energy and distinguished visiting fellow at Columbia University’s Center on Global Energy Policy, is lauding the recent successful test of a 10-ton high-temperature superconducting magnet performed by researchers at the Massachusetts Institute of Technology and Commonwealth Fusion Systems. In an op-ed published on September 10 in The Hill, Dabbar calls for a new level of investment and support for the commercial fusion sector.

MIT ramps 10-ton magnet up to 20 tesla in proof of concept for commercial fusion

September 10, 2021, 11:59AMNuclear News
This large-bore, full-scale high-temperature superconducting magnet designed and built by Commonwealth Fusion Systems and MIT’s Plasma Science and Fusion Center is the strongest fusion magnet in the world. (Photo: Gretchen Ertl, CFS/MIT-PSFC)

A high-temperature superconducting magnet reached and maintained a magnetic field of more than 20 tesla in steady state for about five hours on September 5 at MIT’s Plasma Science and Fusion Center. Not only is the magnet the strongest high-temperature superconducting (HTS) magnet in the world by far, it is also large enough—when assembled in a ring of 17 identical magnets and surrounding structures—to contain a plasma that MIT and Commonwealth Fusion Systems (CFS) hope will produce net energy in a compact tokamak device called SPARC in 2025, on track for commercial fusion energy in the early 2030s.