Five seconds, 59 megajoules: A new record for tokamak fusion
On Wednesday, the EUROfusion consortium announced that the Joint European Torus (JET), located near Oxford in the UK, had set a new record for released energy. Over the course of a five-second "pulse," 59 megajoules of energy were released, double the previous record for tokamak fusion set at JET in 1997.
https://arstechnica.com/science/2022/02/european-project-sets-a-record-for-fusion-energy-produced-by-a-tokamak/