By increasing the power current of its plants, Hydro aims to boost efficiency and cut unit costs, Svein Richard Brandtzaeg said on the sidelines of a conference.

"That's a good combination," he added.

He did not go into detail on how this would affect output levels, but added that Hydro has no plan to further raise production at its Qatar aluminium plant.

(Reporting by Joachim Dagenborg, editing by Terje Solsvik)