HOELLER Electrolyzer

German engineering helps advancing the topic of hydrogen as a climate-neutral source of energy (FOTO)

Wismar (ots) -

- German start-up opens a new chapter in water electrolysis with eight patent
applications
- 25 years of expertise lead to economical PEM electrolysis stacks
- Prometheus: High performance, low cost - thanks to innovations in design &
materials
- Clear goal: Green hydrogen for less than EUR 4/kg

Climate-neutral energy - generating it, storing it efficiently and making it
available again. One of the central issues in the energy transition in order to
achieve the global climate targets.

Hydrogen has long been regarded as the ideal solution here, but has yet to make
the final breakthrough, even though the principle of splitting water
(electrolysis) to generate energy is nothing new. Various companies around the
world are working to increase the cost-effectiveness, possible applications and
efficiency of the technology to such an extent that it can be used as a clean
alternative source of energy in the everyday lives of individuals and companies.
Especially in the industrial sector, there is a high energy demand, which must
be covered in future in a climate-neutral and cost-effective way.

This is exactly where the German company HOELLER Electrolyzer
(https://www.hoeller-electrolyzer.com/) and its Prometheus
(https://www.hoeller-electrolyzer.com/prometheus.html) series come in: A range
of extremely compact electrolysis stacks based on 25 years of expertise in PEM
(polymer electrolyte membrane) technology and eight patents pending. The first
Prometheus will go into test operation in the third quarter of 2020.

Prometheus makes green hydrogen available on almost every company site

No matter whether you are a wind turbine operator, hydrogen filling station, or
industrial enterprise/large-scale operation with fleets of trucks and forklifts
or freight trains. In future, they all will need cost-effective and reliable
energy solutions.

This is precisely what Prometheus electrolysis stacks offer. They are the
easy-to-integrate, cost-effective and powerful centerpiece of climate-friendly
hydrogen and thus energy production for every plant manufacturer.

The goal of engineer and company founder Stefan Höller: "We want to enable every
company to produce green hydrogen independently, economically and decentrally on

their company premises. Thanks to Prometheus, the price per kilogram of hydrogen
will be below 4 euros."

For this purpose, HOELLER Electrolyzer offers its Prometheus stacks in three
compact sizes and power ratings.

The smallest stack is the size of a water carbonator and has a power rating of
76 kW - the largest 1.4 megawatts

Prometheus S - achieves a power rating of 76 kW, produces 34 kg of hydrogen per