Trustees

  • Sarah Butler-Sloss

    Chair of Trustees

    Sarah Butler-Sloss has been internationally recognised for her work in the field of green energy over the past 20 years, best known for founding the Ashden Awards for Sustainable Energy in 2001. She led Ashden as Founder Director from 2001 to 2019. Sarah is a regular contributor to UK and global policy debates in the field of sustainable energy and an active member of the UN’s International Sustainable Energy for All practitioner network. Sarah is also the founder and trustee of the Ashden Trust and a trustee of ClientEarth.

  • Richard Azarnia

    Trustee

    Richard is co-founder of Mlinda, which helps people rural India access renewable energy. Richard created Mlinda's vision and approves strategy. His ambition for a scalable and replicable business able to influence production and consumption defines Mlinda's approach to rural electrification. His strengths in business advisory and finance guide Mlinda's strategy. Richard is also active in asset management and sustainable investments. 

  • Emma Colenbrander

    Trustee

    Emma is a social entrepreneur and international development professional. She leads the Energy Markets portfolio at Practical Action, where she heads up the Global Distributors Collective, and is a co-founder of Pollinate Energy, a multi-award winning social enterprise in India that brings clean energy products to urban slum communities. Emma has also worked with the Australian Agency for International Development (AusAID), focusing on development finance and innovation.

  • Dr. Harish Hande

    Trustee

    Harish Hande is a renewable energy entrepreneur with over 24 years of grassroots experience in understanding, developing and deploying sustainable energy solutions for underserved communities. Born in rural Karnataka, Harish went on to pursue his graduation from the Indian Institute of Technology, Kharagpur and a PhD from University of Massachusetts. He founded SELCO

  • Caroline Holtum

    Trustee

    Caroline joined We Mean Business as the Communications Director following a spell as an independent consultant on sustainability content and strategy for a range of clients including Unilever, The Crowd and Bloomberg. Prior to that she was head of content globally for Guardian Sustainable Business, which she helped launch in the UK and US. She was the site editor and also held responsibility for delivering content partnerships, events and strategy.

  • Nick Mabey

    Trustee

    Nick is Chief Executive and a founder director of E3G (Third Generation Environmentalism). In addition to his management role, Nick leads E3G’s work on European climate change policy, climate diplomacy and foreign policy, and the security implications of climate change. Nick was previously a senior advisor in the UK Prime Minister’s Strategy Unit leading work on national and international policy areas. Before he joined government Nick was Head of Economics and Development at WWF-UK. He came to WWF from research at London Business School on the economics of climate change, which he published as the book ‘Argument in the Greenhouse’.

  • Agamemnon Otero

    Trustee

    Agamemnon is a co-founding director of Energy GardenRepowering and marine transport infrastructure company, Hydra. He co-founded industry advocacy body Community Energy England and advised UK government on community energy policy. In 2014 he was made a London Leader, in 2016 he was awarded an MBE for services to community energy and in 2017 was named one of the 51 Most Impactful Green Leaders globally by CSR Congress.

  • Andrew Reicher

    Treasurer

    Andrew’s 43-year career has been in finance, private equity and development finance and investment. He joined CDC in 1999 and was Head of Infrastructure there and later at Actis, where the bulk of investments were in the electricity sector in Africa, Asia and Latin America. He advised the founders, invested and joined the investment committee of Berkeley Energy, a leading developer and operator of renewable energy plants in Africa and Asia. Since 2010, Andrew’s family have been active business angel investors in energy access in Africa.

  • Paul Simon

    Treasurer

    Paul manages the family office of Lord Stanley Fink, former CEO of Man Group Plc and is a special adviser to the Ashden, JJ and Mark Leonard Sainsbury Family Charitable Trusts on their impact investing strategies and allocations. Paul has been involved in a number of environmental philanthropic schemes, particularly in Africa; he is engaged in running a network of schools in socially deprived areas in the UK and is on the board of a Children’s Museum initiative in London.