Meet the team

The STA is overseen by a Board of Directors and decisions are made on a one member, one vote basis.

The Board is supported by the STA team and a number of Working Groups which each focus on key areas such as rooftop PV, solar thermal, policy, public relations, new build and the grid.

Find out more about the team here. If you’d like to get in touch, visit Contact Us.


The STA Executive


  • Chris Hewett

    Chief Executive
    Chris has 25 years’ experience in advocacy, policy research, thought leadership and campaigning on a wide variety of sustainability, energy and environmental issues. He was Head of Climate Change for the Environment Agency, providing advice to Government on climate change mitigation and adaptation. He has worked for a number of leading NGOs & government agencies, including successful advocacy for the Green Investment Bank at Green Alliance, global aviation research for the Committee on Climate Change, and more recently leading policy and advocacy for the Finance Innovation Lab.

  • Gemma Stanley

    Senior Policy Analyst
    Gemma holds a BA from Durham University and an MSc in Public Policy from UCL, during which her studies focused on regulation, climate change and the media’s influence on environmental behaviour.

    Before joining the STA, Gemma worked as a Regulatory Analyst at Solarplicity, a renewable energy supplier and solar PV installer.

  • Jack Dobson-Smith

    External Affairs Adviser

    Jack joined the STA in 2018, having previously undertaken communications and partnership-oriented roles at CDP and the Climate Disclosure Standards Board.

    Holding a Bachelors in Journalism and a Post-Graduate Diploma in Sustainability and Environmental Management, Jack is also an accredited Practitioner member of the Institute of Environmental Management and Assessment (IEMA).

  • Rachel Hayes

    Policy Officer
    Rachel holds a BSc from the University of Hull and a MSc in Environment and Development from the University of Leeds. Her studies centered around climate change mitigation, policy and governance and international relations.

    Prior to her position at the STA, Rachel worked with a variety of NGO’s and independent charities. Most recently undertaking an internship as a technical scoring officer at CDP.

The STA Board

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    Gareth Williams
    Managing Director
    Caplor Group
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    Jonathan Selwyn (Chair)
    Solar Consulting Ltd

  • Syed Ahmed
    Energy for London
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    Paul Hutchens
    Eco2 Solar

  • Vicki Ramsden
    Performance Manager
    Wise Energy

  • Richard Jenkins
    Ecolution Renewables

  • Matt Black
    Armstrong Energy

  • Giles Clarke
    AlSi Consulting
  • Chris Clark
    Emtec Energy
  • Christelle Lawson
    Country Manager (UK)

  • Stuart Elmes
    Founder and CEO
    Viridian Solar

  • John Forster
    Forster Group
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  • Jonathan Bates
    Photon Energy