Sam Mackwell – Chief Mechanical Engineer, Co-Founder

Sam has been on a mission to facilitate a just transition away from fossil fuel, particularly for agriculture & transport, for most of his life. Over the past 6 years, Sam has developed the revolutionary biomass burning steam boiler technology which powers AgLocos®. Prior to this, Sam explored possibilities in various technologies including biofuel turbine engines and hydrogen, having received several grants for this work. Sam took part in the Young Enterprise Scheme in 2011 and was selected to compete in Bangkok. In 2012 Sam was invited to attend the Pacific Forum in Rarotonga. Sam now leads the further design and development of AgLoco® technology.


William Bowden – Communicator

William came to AgLoco® as a Masters of Science Communication Student from the University of Otago. He was researching issues in sustainability and the energy transition when he came across an article on AgLoco’s® innovative boiler technology. Recognising the viability of the technology he dove straight in to create a 10 minute documentary, “LOCO”, sharing the story of AgLoco® so far. William is now a part of the AgLoco® team, working on customer outreach, sales and marketing and the company social media.

Phone: +64275678845


Dr Charles Merfield – Advisor, Sustainable Agriculture

Dr Charles Merfield (HND Comm. Hort., M.Appl.Sci. Hons, PhD, MRSNZ) is head of the BHU Future Farming Centre, which is focused on science and extension in the sustainable agricultures, such as organic and regenerative farming.  He has wide experience both as a commercial farmer so understands real-world farming and as a scientist working across all aspects of agriculture and horticulture, including soil, pests, weeds, crops and pasture.  His speciality is non-chemical weed management, particularly thermal weeding and he has designed and built a diverse range of flame and steam weeders.

Ing. Shaun T. Mc Mahon – Advisor, Modern Steam & International Relations (RIP)

We are saddened to announce that Shaun passed away in January 2022. Our eulogy to Shaun is found here:
Shaun had a long career working on advanced steam projects around the world and worked closely with Ing. Livio Dante Porter. At the time of his passing he was in charge of modern steam development at INTI, Argentina’s National Institute of Industrial Technology and a highly valued advisor to AgLoco®.

Ing. Martín Rearte – Advisor, Solid Bio-Fuel & Agricultural Residues (Argentina)

Martín is a bioenergy specialist working as the technical coordinator of Solid Bio-fuels at INTI, Argentina’s National Institute of Industrial Technology. Martín is dedicated to promoting SMEs that make up the renewable energy industrial sector. He is a researcher in the field of Renewable Energy Systems and a senior consultant in biomass management and its industrialization processes.

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