The scientists have not generated more energy than the experiment uses in total. The lasers unleash nearly two megajoules of energy on their target, the equivalent, roughly, of two standard sticks of dynamite. But only a tiny fraction of this reaches the fuel. Writing in Nature, the scientists say fusion reactions in the fuel released at best 17 kilojoules of energy.

17kj is the equivalent of eating 3g of porridge.

At least it is a start. If they manage to solve the problems then long term environmentally friendly power for all.

Is that porridge made with full fat or skimmed milk?