About Us

The Principle Biogas team has extensive knowledge & experience of the design, build, commissioning and operation of a wide variety of digestion facilities including sewage sludge digesters, the first full scale food waste plant and design & development of a wide range of on farm facilities with outputs ranging from 25kWe to 2MWe.

Together the team has an extensive range of skills and qualifications which can be applied to many types of services.  These include process, mechanical and electrical design, a full understanding of DSEAR requirements, site manager qualifications, health and safety documentation, breathing apparatus, confined space training and operator experience.

The Team

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Russell Mulliner
Managing Director


Russell established Marches Biogas in 2009 and has over 20 years' experience of the design and operation of anaerobic digestion facilities.
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Jamie Gascoigne
Process Control Designer & Commissioning Engineer

Jamie joined Marches Biogas in 2010 and to date he has commissioned 14 anaerobic digestion projects ranging from 10kWe to 1.5MWe.
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Steve Bushby
Design Engineer


Steve has been an anaerobic digestion design engineer for over 10 years, previously at Greenfinch Ltd from 2007 before he joined Marches Biogas in 2013.  
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Pavel Psenicka
Process Engineer


Pavel has been in the anaerobic digestion industry since 2008 and joined Marches Biogas in 2011.  He develops the process design of new build facilities and the innovative improvements of existing plants. 
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Principle Biogas Privacy Policy 2018

Further to the new GDPR legislation we have updated our privacy policy. Click the link below for full details.

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