Reviewed: ad hoc news B2B & Pro desk. Edited and checked on 2026-06-27, 16:32. Details in the imprint. The A300 alkaline electrolyser from Nel ASA sits on a steel skid, all pipes and cables visible like veins, humming quietly as hydrogen flows into a waiting buffer tank. Walk up to the frame and you feel a faint warmth and hear valves clicking in a steady rhythm. Where the A300 fits The A300...