Welcome to the world of decarbonisation

Business services for decarbonisation and the energy transition

– Consulting

– Coaching

– Communication


Hi, I am Stephen B. Harrison, founder and Managing Director at sbh4.

As an independent consultant, I am heavily involved in decarbonisation with a focus on e-fuels, e-fertilizers, CCUS, GHG emissions reduction and the emerging hydrogen economy.


Our focus at sbh4 is on finding the right solution to the problem. In our goal of supporting planetary health, we are open to recommending the most appropriate technology. Electrification will have a major role to play, and we have expertise with plasma for high temperature heat and high temperature industrial heat pumps. Solid, liquid, and gaseous biofuels will be important and our projects have exposed us to these renewable energy vectors. Waste to energy and waste to fuels is also a valid pathway that we have experience in. CCUS and hydrogen will also play major roles – these gases are core to our expertise. Beyond hydrogen, hydrogen derivatives such as green ammonia and e-fuels through the PtL technologies are also within our scope and we have taken multiple consulting engagements in these areas.


In the hydrogen domain, my expertise stretches the full value chain from upstream production of grey, blue, turquoise, and green hydrogen though midstream storage and distribution of hydrogen to industrial applications in refining, steel making and mobility.


For CCUS, I focus on carbon dioxide capture from power generation and heavy industry, for example cement making, ammonia, methanol, and the energy sector. I am also expert in the areas of CO2 purification, compression, liquefaction, distribution, and utilisation for e-fuels production and other applications.



Additional pillars of decarbonisation where I advise are biofuels, renewable power generation, sustainable energy, and the electrification of industrial processes to avoid fossil fuel combustion.


My exposure to hydrogen, CO2 and other gases extends over more than 30 years. Of those, 16 were with BOC Gases in the UK and The BOC Group internationally. I also worked as a senior executive for Linde Gas in Munich for 10 years.


Through my involvement in industrial gases, I have had deep exposure to a diverse range of products, including hydrogen, carbon dioxide, air gases and helium. Medical gases, fuel gases, welding gases, beverage dispense gases, specialty gases and refrigerant F-gases were also in my business portfolios at BOC and Linde for many years. Equipment, such as two product ranges of PEM electrolysers for hydrogen production, high purity gas control equipment and gas cylinders of all sizes and types were integral to the businesses that I led.


Click for more hydrogen, e-fuels decarbonisation and industrial gases graphics


Since 2017, I have been running the consulting practice at sbh4. I maintain close contact with the hydrogen, CCUS, and industrial gases sectors through my consulting activities and my work with gasworld & H2 View. I am a member of the advisory boards for these leading international publications which are focused on hydrogen, CO2, industrial, specialty and medical gases.


Find more than 200 published journal articles by Stephen B. Harrison

In 2019 my wife, Gundula Harrison, also joined sbh4. She has German, Chinese and English language skills and a wealth of experience at DAX 30 automotive and industrial companies and several Mittelstand organisations.


Our insight, experience, energy and expertise are at your service.


© 2023 sbh4 GmbH


data protection

+49 (0)8171 24 64 954



Stephen B. Harrison – Leadership 4.0, Business Coach, Industrial Gases Industry expert & managing director at sbh4 GmbH

sbh4 – coaching, consulting, business english and interim management
Stephen B. Harrison – Leadership 4.0, Business Coach, Industrial Gases Industry expert & managing director at sbh4 GmbH