Rolls-Royce Invests in Hydrogen Power with 54% Stake in Hoeller Electrolyzer

(29 June 2022, 10:41 +07)
Rolls-Royce has acquired a 54% majority stake in electrolysis stack
specialist Hoeller Electrolyzer, whose modern know-how will
kind the premise of a brand new vary of mtu electrolyzer merchandise from
its Power Systems division.

Hoeller Electrolyzer, primarily based in Wismar,
Germany, is an early-stage know-how firm that’s creating
polymer electrolyte membrane (PEM) stacks, below
the model identify Prometheus, for the cost-effective manufacturing of

Hydrogen is an more and more engaging energy
supply to gasoline the inexperienced power transition and demand for ‘inexperienced’
hydrogen – whose manufacturing creates no CO2 – is predicted to rise
considerably. It is required for gasoline cells and hydrogen engines,
for the manufacturing of artificial ‘drop-in’ fuels and for industrial
processes that at present use hydrogen that isn’t created in a
carbon impartial course of. Consequently, high-performance electrolyzers are a key element of any hydrogen system.


From left: Dr. Otto Preiss, COO of Rolls-Royce's Power Systems Division; Armin Fürderer - Power Systems' Head of Net Zero Solutions Business Unit; Stefan Höller - Founder and Head of Development of Hoeller; and Matthias Kramer, Joint Head - Hoeller Electrolyzer. Click to enlarge.

From left: Dr. Otto Preiss, Armin Fürderer, Stefan Höller and Matthias Kramer


Dr. Otto Preiss, COO and Chief Technology Officer, Rolls-Royce
Power Systems, mentioned, “By creating our personal mtu electrolyzers and
by taking a majority stake in Hoeller Electrolyzers, we’re
methodically rising our hydrogen portfolio and securing entry to
this fascinating know-how, which isn’t a pipe dream however has
nice market potential. This will allow us to provide full
hydrogen options and make a big contribution to
defending the local weather. Our full hydrogen options will
allow prospects to retailer renewably produced power in the type of
hydrogen to be used as and when required, or for additional processing
or onward sale.”

In hydrogen electrolysis, water is
subjected to DC electrical present, producing hydrogen on the
damaging pole and oxygen on the optimistic pole. In this manner, it’s
doable to supply carbon-neutral hydrogen through the use of electrical energy
from renewable sources equivalent to photo voltaic or wind. The electrochemical
response takes place in a cell between plate-shaped electrodes
separated by membranes. Hundreds of cells situated one above the
different and pressed collectively kind a ‘stack’, the center of an electrolyzer.

Founded in 2016, Hoeller Electrolyzer has
positioned itself, with Prometheus, as one of many few extremely
specialised skilled gamers in the sector of high-efficiency PEM
electrolysis stacks. Its founder, Stefan Höller, has greater than a
quarter of a century’s expertise of creating electrolysis know-how and has already registered 14 patents related with
Prometheus. Particularly excessive effectivity is promised by particular
floor applied sciences for the bipolar plates which considerably
cut back using costly valuable metals platinum and iridium
as catalysts, in addition to elevated output strain.

Höller, Managing Director, Hoeller Electrolyzer, mentioned, “Our stack
goes to supply hydrogen at a value not beforehand thought

Rolls-Royce and Hoeller Electrolyzer are united
by a shared perception in the chance of zero-carbon power – each
for energy provide and the propulsion of heavy automobiles. With
a long time of expertise and techniques experience, Rolls-Royce goes
to develop an entire electrolyzer system and has a worldwide gross sales
and repair community, which opens up the potential for vital
worldwide gross sales.

Development work on
the primary mtu electrolyzer utilizing a stack from Hoeller Electrolyzer
is already underway. In 2023, it should go into operation on the
Validation Center in Friedrichshafen to exhibit how an electrolyzer suits into the general structure of a microgrid. An
preliminary buyer mission is already deliberate for 2024.

Fürderer, who heads up the Net Zero Solutions enterprise unit of
Power Systems, mentioned, “We’re going to launch electrolyzers with
a number of megawatts of energy proper from the beginning. A complete output of
over 100 megawatts is conceivable by combining a number of electrolyzers.”

The fairness in Hoeller Electrolyzer now held by
Rolls-Royce comes from departing minority shareholders and from an
enhance in share capital.

Stefan Höller and Matthias Kramer will
proceed to guide Hoeller Electrolyzer as a standalone firm,
with the purpose of constructing a number one worldwide stack

Financial particulars of the transaction haven’t been disclosed.

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