Alkaline Electrolyzer Tour at Green Hydrogen Systems

Why watch it?

Filmed at Green Hydrogen Systems in Kolding, Denmark, this question-and-answer tour from the Engineering with Rosie channel looks at a real alkaline electrolyzer. Topics include the main components, the advantages of alkaline technology over PEM and SOEC, cost and levelized cost of hydrogen (LCOH), oxygen use, water quality, the output of a container-sized unit and how electrolysis efficiency is calculated. A good first look for students. Recorded in February 2021, so costs are dated. After the recording, according to a company announcement, the Probate Court in Kolding issued a bankruptcy order for Green Hydrogen Systems A/S on 25 June 2025; the plant and product details reflect the situation at the time of filming.

This introduction is based on the video’s YouTube description and catalogue details. Source video: independent technical information. No expert opinion has been added to this video yet.