John is a widely respected expert in base load renewable biogas & geothermal systems, digestate processing, water recycling and nutrient recovery, as well as in related remote monitoring, data analytics and prognostics. 

John holds a PhD in combustion engineering. He has over 20 years of experience in CHP engines, and is the Managing Director of  OSA Engineering, Ltd, (Optimization Solutions Asia Engineering) and has, earlier specialized in gas product sales, project management and product design at Caterpillar.