Effect of voltage elevation on cost and energy efficiency of power electronics in water electrolyzers | 2023 Publication type A1 Journal article (refereed), original research Author(s) Hysa Galdi, Ruuskanen Vesa, Kosonen Antti, Niemelä Markku, Aarniovuori Lassi, Guilbert Damien, Ahola Jero Energy transition LUT School of Energy Systems