Friday, August 12, 2022

Rolls-Royce enters the hydrogen production market and acquires majority stake in electrolysis stack specialist

Rolls-Royce is entering the hydrogen production market and acquiring a 54% majority stake in electrolysis stack specialist Hoeller Electrolyzer, whose innovative technology will form the basis of a new range of mtu electrolyzer products from its Power Systems division.

Hoeller Electrolyzer, based in Wismar, Germany, is an early-stage technology company that is developing highly efficient polymer electrolyte membrane (PEM) stacks, under the brand name Prometheus, for the cost-effective production of hydrogen.

Hydrogen is an increasingly attractive power source to fuel the green energy transition and demand for ‘green’ hydrogen – whose production creates no CO2 – is expected to rise significantly.

It is needed for fuel cells and hydrogen engines, for the production of synthetic ‘drop-in’ fuels and for industrial processes that currently use hydrogen that is not created in a carbon neutral process. Consequently, high-performance electrolyzers are a key component of any hydrogen system.

Dr. Otto Preiss, COO and chief technology officer, Rolls-Royce Power Systems, said: “By developing our own mtu electrolyzers and by taking a majority stake in Hoeller Electrolyzers, we are methodically growing our hydrogen portfolio and securing access to this fascinating technology, which is not a pipe dream but has great market potential.

“This will enable us to supply complete hydrogen solutions and make a significant contribution to protecting the climate. Our complete hydrogen solutions will enable customers to store renewably produced energy in the form of hydrogen for use as and when required, or for further processing or onward sale.”

In hydrogen electrolysis, water is subjected to DC electrical current, producing hydrogen at the negative pole and oxygen at the positive pole. In this way, it is possible to produce carbon-neutral hydrogen by using electricity from renewable sources such as solar or wind. The electrochemical reaction takes place in a cell between plate-shaped electrodes separated by membranes. Hundreds of cells located one above the other and pressed together form a ‘stack’, the heart of an electrolyzer.

Founded in 2016, Hoeller Electrolyzer has positioned itself, with Prometheus, as one of the few highly specialized expert players in the field of high-efficiency PEM electrolysis stacks. Its founder, Stefan Höller, has more than a quarter of a century’s experience of developing electrolysis technology and has already registered 14 patents connected with Prometheus.

Particularly high efficiency is promised by special surface technologies for the bipolar plates which significantly reduce the use of expensive precious metals platinum and iridium as catalysts, as well as increased output pressure.

Stefan Höller, Managing Director, Hoeller Electrolyzer, said: “Our stack is going to produce hydrogen at a price not previously thought possible.”

Rolls-Royce and Hoeller Electrolyzer say they are united by a shared belief in the opportunity of zero-carbon energy – both for power supply and the propulsion of heavy vehicles. With decades of experience and systems expertise, Rolls-Royce is going to develop a complete electrolyzer system and has a global sales and service network, which opens up the potential for significant worldwide sales.

Matthias Kramer, CFO and joint Managing Director, Hoeller Electrolyzer, said: “In Rolls-Royce, not only have we found an important customer for our stacks, we’ve also secured an ideal partner and supporter who shares our vision of putting stacks into full production.”

Development work on the first mtu electrolyzer using a stack from Hoeller Electrolyzer is already underway.

The equity in Hoeller Electrolyzer now held by Rolls-Royce comes from departing minority shareholders and from an increase in share capital. Financial details of the transaction are not being disclosed. Stefan Höller and Matthias Kramer will continue to lead Hoeller Electrolyzer as a standalone company, with the goal of building a leading international stack manufacturer.

A message from the Editor:

Thank you for reading this story on our news site - please take a moment to read this important message:

As you know, our aim is to bring you, the reader, an editorially led news site and magazine but journalism costs money and we rely on advertising, print and digital revenues to help to support them.

With the Covid-19 pandemic having a major impact on our industry as a whole, the advertising revenues we normally receive, which helps us cover the cost of our journalists and this website, have been drastically affected.

As such we need your help. If you can support our news sites/magazines with either a small donation of even £1, or a subscription to our magazine, which costs just £33.60 per year, (inc p&P and mailed direct to your door) your generosity will help us weather the storm and continue in our quest to deliver quality journalism.

As a subscriber, you will have unlimited access to our web site and magazine. You'll also be offered VIP invitations to our events, preferential rates to all our awards and get access to exclusive newsletters and content.

Just click here to subscribe and in the meantime may I wish you the very best.







Latest news

Related news

By continuing to use the site, you agree to the use of cookies. more information

The cookie settings on this website are set to "allow cookies" to give you the best browsing experience possible. If you continue to use this website without changing your cookie settings or you click "Accept" below then you are consenting to this.

Close