Every frame in this range is an alkaline industrial hydrogen generator: a KOH electrolyte circulating across the electrode stack, producing oxyhydrogen on demand with no storage vessel. Alkaline is the correct architecture for continuous industrial duty — stable at 24/7 load, tolerant of long service intervals, and economical at the gas volumes a boiler or kiln actually consumes.
PEM electrolysis — polymer electrolyte membrane, sometimes described as pure water electrolysis — uses a solid membrane rather than a liquid electrolyte. It packages more compactly and responds faster to intermittent duty, which is why the group's fleet and transport systems use PEM rather than alkaline. For a fixed boiler running a steady load, alkaline remains the better-matched and lower-cost choice.
Feedwater and electrolyte quality govern gas purity and generator service life in both architectures. Feedwater conductivity and KOH electrolyte specification sets out the conductivity and purity limits, and the manufacturing site evaluation process covers how water supply, electrical capacity and HAZOP are confirmed before a frame is specified.