About us


// Iain Stewart

Iain started his career working in building energy efficiency and energy modelling. He began developing his expertise by working for Conservia focusing on building energy efficiency, performing energy audits and Energy Performance Contracts (EPCs) across a diverse range of commercial buildings. It was through this work that Iain discovered the huge potential for HVAC optimisation, and started writing the code that would eventually become Exergenics.

Iain later worked at ClimateWorks Australia, helping businesses and governments to understand and prepare for the transition to net zero emissions. During this time he collaborated with CSIRO to co-develop Aus-TIMES; Australia’s leading techno-economic energy and emissions modelling tool. Iain has also provided advice to Federal Government agencies and has worked with companies including Commonwealth Bank, providing rigorous modelling to help develop their understanding of risks and opportunities associated with climate change. While at ClimateWorks, Iain led the modelling effort for a major, multi-year research project, Decarbonisation Futures.

“Iain is exceptionally gifted at modelling complex systems, he has become in a very short time ClimateWorks’ key energy model expert. I completely trust his skills and judgement.”

— Amandine Denis-Ryan, Head of National Programs, ClimateWorks Australia