Stewart has worked in the electricity industry since 1983 and has been involved in managing electricity networks across the UK, in a range of roles including: operations manager, planner, policy engineer and project manager (IT and Power Engineering). He is a Fellow of the IET and a Chartered Engineer.

He is now the Head of DSO and innovation, within Scottish and Southern Electricity Networks with the remit of introducing new and better ways of managing the electricity networks, translating these new ideas into business as usual and managing the transition of the business from a Distribution Network Operator (DNO) to a Distribution System Operator (DSO).

Key elements of Stewart’s current role include ongoing development and deployment of Constraint Managed Zones, a business as usual funded process for procuring flexibility as a service to manage network constraints while permitting value stacking.

Other significant active projects include monitoring, active network management, analytics and modelling, frequency responsive demand, embedded energy storage facilities and the preparation for the large scale uptake of Electric Vehicles.