>U.S. scientists have achieved “ignition” —  a fusion reaction that produced more energy than it took to create...

  >The inefficient lasers used in the experiment required about 300 megajoules of energy to fire just 2 megajoules of energy into the experiment. The reaction produced about 3 megajoules of energy...

A bit of a generous definition of 'produced more energy than it took to create' there.