Flexible Power Systems was founded in 2018 to help companies develop and deliver ambitious decarbonisation and sustainability strategies that meet their operational needs cost-effectively in an ever-changing energy environment.



Our expanding team is made up of economists, engineers, physicists and data scientists with experience of the energy and transport sectors to address the decarbonisation and energy transition challenges.


Michael Ayres


Michael has more than fifteen years’ experience of clean-technology ventures. He was a founding team member at both Dearman (a transport refrigeration technology developer) and Highview Power (a grid scale energy storage company). An economist by training he has been responsible for technology development, application evaluation, sales and strategic relationships at these companies. Michael leads commercial and operational activities at Flexible Power Systems.

Henry Clarke

Chief Engineer
Mechanical Systems

Henry is a mechanical engineer with more than a decade’s experience of expanders, energy storage and refrigeration cycle development. Following a PhD in liquid nitrogen power conversion technology he worked for 9 years as Head of Innovation at Dearman Engine Company leading a team working on cutting edge projects spanning a wide range of applications from advanced refrigeration cycles to heat recovery hybrid powertrains. Henry is responsible for thermo-mechanical systems like vehicle energy use, refrigeration cycles and thermal energy storage.

James Derby

Chief Engineer
Electrical Systems

James is a power electronics and machines specialist with more than 25 years of global experience in product development, manufacturing and applications engineering up to board level. He has worked mostly within the alternative energy and energy storage sectors for employers including URENCO, Flow Products, KTSi and MPE. James is responsible for power electronic systems, including electricity network interactions, EV chargers, battery packs and hardware implementations at client sites.