Linde GmbH and Mainzer Stadtwerke are extending their joint project at Energy Park Mainz by 15 years. As part of the extension, the existing alkaline electrolysers are to be replaced with modern PEM (Proton Exchange Membrane) electrolysers with a total capacity of just under 5 megawatts. According to Linde, construction work is scheduled to begin in summer 2025, with commissioning planned for 2027.
When it was commissioned in 2015, Energy Park Mainz was one of the first large-scale projects for converting surplus renewable energy into hydrogen. The hydrogen produced was fed into the local natural gas grid, among other uses, or used as fuel for fuel cell vehicles.
Modernisation also includes compressor and trailer filling station
In addition to replacing the electrolysers, the modernisation also includes the renewal of the compressor, hydrogen drying system and the installation of a new 300-bar trailer filling station. Furthermore, the electrical, measurement, control and automation systems are to be comprehensively upgraded. According to Linde, the aim is to increase the plant’s efficiency and reduce hydrogen transport costs.
“The new plant in Mainz will continue to produce certified clean hydrogen to supply our industrial customers in the years to come,” says Mathias Kranz, President Region Germany Gases at Linde. The project is being funded by the Federal Ministry for Digital and Transport (Bundesministerium für Digitales und Verkehr).
Linde is one of the world’s leading companies in the field of industrial gases and engineering. The company develops hydrogen projects along the entire value chain and supports customers in decarbonising industrial processes.
