BASF has commissioned a 54 MW proton exchange membrane (PEM) electrolyzer at its Ludwigshafen site after two years of construction. The electrolyzer, which includes 72 installed stacks, could reduce greenhouse gas emissions at BASF’s main plant by up to 72,000 metric tons per year. The German company said it invested €25 million ($27.3 million) in the project, with the European Union contributing €124.3 million. Hydrogen from the system will be used in the production of ammonia, methanol, and vitamins.