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Stew Horne

Group Head of Sector Intelligence and External Affairs

I lead Energy Saving Trust’s sector intelligence, comprising:

  • Insight and evaluation
  • International work
  • Policy
  • PR and events

A key part of my role is increasing our influence and visibility by using our insight and impact across a broad range of sectors linked by the climate emergency.

Before joining Energy Saving Trust I led Citizens Advice’s Energy Networks and Systems team. I’ve also worked in energy vulnerability at Ofgem and had several consumer policy focussed roles elsewhere in the civil service. One of the main reasons I joined Energy Saving Trust is our mission and net zero vision, bringing my policy and consumer focussed professional expertise.

I’m also a member of board member of the European Council for an Energy Efficiency Economy, a member of National Grid Transmission’s Independent Stakeholder and a Consumer Affairs advisor to the Bar Standards Board.

In my free time, I enjoy cooking, running and cycling.

Areas of expertise

  • Energy efficiency and renewables
  • Consumer policy
  • Energy infrastructure
  • Media spokesperson

Articles by Stew Horne

Our response to the UK Government’s plan to kickstart onshore wind revolution

4 July 2025

Our response to the UK Goverment's plan to kickstart onshore wind revolution, with commentary by our head of external affairs Stew Horne.