Our Team

Our staff and trustees are passionate about climate action. See how they’re helping create a low- carbon future – or take a look at our job opportunities.

Harriet Lamb - CEO

Harriet joined Ashden as CEO in May 2019, taking responsibility for developing and implementing the organisation’s ambitious new strategy to tackle climate change.

She was CEO at peacebuilding organisation International Alert and spent 15 years leading Fairtrade in the UK and globally. She has always worked for NGOs with a focus on international development, peace and the environment. She worked in the UK on refugee and low pay issues, and lived in India for six years. Her book Fighting the Banana Wars and Other Fairtrade Battles was published in 2008. She is a cycling obsessive who loves gardening and walking her dog.

Joanna Walton - Director of Communications and People

Jo has been at Ashden since 2005 and is responsible for our communications. She is also a member of the Executive Management team with particular responsibility for HR. In her time at Ashden she has overseen the smooth delivery of 15 Ashden Awards ceremonies with speakers including former US Vice President Al Gore, Sir David Attenborough and Ashden’s Patron HRH The Prince of Wales. She is a keen gardener, dog walker and reader and trying to be a better piano player.

Edward Dean - Director of Business Development

Ed leads on building the funding partnerships Ashden needs to deliver its mission and create impact. Success for him is much more than what the balance sheet looks like; it’s about a long-term relationship with the individuals and organisations that share Ashden's purpose.

Giles Bristow - Director of Programmes

Giles is the Director of Programmes at Ashden where he leads our work with local authorities transforming the UK’s towns and cities, directs a campaign to decarbonise the UK’s 32,770 schools (and further FE and HE colleges), and Ashden's work with enterprises, NGOs and policy makers to accelerate the delivery of universal access to sustainable energy in the developing world. Before working with Ashden, he was Director of Programmes at Forum for the Future with responsibility for its systems change work in energy, food and marine environments. He found his way to Forum from a previous career as an environmental lawyer in the City of London. When not thinking about energy, innovation and system change, he is swimming in the sea or wearing his yellow RNLI wellies.  Please note, if his pager goes off, he will need to leave your meeting to head to Lyme's Lifeboat station!

Lucy Blackburn - Senior Corporate Partnerships Officer

Lucy is responsible for the stewardship of Ashden’s corporate partners and fostering new relationships, both in the UK and internationally. At its heart this means the development of partnerships that are mutually beneficial and based on a shared commitment to sustainability.

Jennifer Lauture - Development Officer

Jennifer assists the development team in securing funding to run and develop the Ashden Awards and programme work. This involves research into funding prospects, writing persuasive proposals, reporting to current funders, maintaining stewardship and developing relationships with individuals interested in sustainability and taking action against climate change.

Craig Burnett -

Craig makes sure Ashden's voice is powerful and passionate. As well as thinking about the climate stories we want to tell, he writes and edits articles, pieces, reports, video scripts and more.

Chhavi Sharma -
Programme Manager (Sustainable Energy for International Development)

Chhavi manages Ashden’s International Awards and Business Support programmes. This involves overseeing the application and judging processes and helping find our new cohort of winners as well as providing them with the support they need to grow and scale their work. She also manages Ashden’s relationship with the Ashden India Collective.

Alex Green -
Programme Manager (Schools)

Alex is the Schools Lead for Ashden and leads on Let’s Go Zero 2030, a campaign that supports UK schools working together to be zero carbon by 2030. She managed Ashden’s sustainable school awards and peer to peer LESS CO2 programme for 7 years before launching the Let’s Go Zero campaign in 2020. Alex has a Masters in Environmental Management from the University of Cape Town and has previously worked running an environmental business awards scheme for a local authority, supporting small businesses to cut carbon and regulating industry at the Environment Agency.

Mike Pepler -
Awards Manager

Mike manages the Liveable Cities awards process, from researching themes for the awards and designing application forms to planning the judging process and visiting the applicants. With his background in engineering, research and computing, he also gets involved in the technical aspect of almost all the team’s work at some point in the year.

Simon Brammer -
Head of Cities

Simon heads up our cities programme that aims to create liveable, sustainable cities. At the heart of this approach is a network that brings together the UK metro mayor regions. Using our winners to demonstrate the possibilities, we are showing policymakers that by tackling climate change you can simultaneously address a multitude of other challenges. Challenges such as cleaning up toxic air, providing affordable warm homes or creating new, fairly paid jobs. We want a just transition.

Cara Jenkinson
Cities Manager

Cara works with Simon Brammer to support our UK Award winners, helping them to share best practice and showcase their work to influential audiences including policymakers. She also works with Mike Pepler on the UK Awards process, including researching potential applicants and undertaking visits of shortlisted applicants. She has been involved in community energy for several years, and appreciates the impact of promoting innovators in sustainable energy.

Kasia Brookes -
Awards Co-ordinator

Kasia takes care of the whole awards process – setting up the application forms, helping applicants, arranging judging meetings and visits, looking after our winners during awards week and everything in between.

Anita Henderson -
Executive Assistant to CEO

Anita provides executive level support to the CEO, Harriet Lamb, PA support to the Director of Communications & People, Jo Walton and Chair of Trustees, Sarah Butler-Sloss. She is responsible for the meeting administration of the quarterly Trustee meetings, the weekly Executive Management Team and monthly Leadership Group meetings which she attends and takes minutes.

Vikki Leaney -
Climate Change Stakeholder Engagement Officer

Vikki is part of the Cities Team working with Cara Jenkinson and Simon Brammer, based in the North East of England working in partnership with the North of Tyne Combined Authority on a two-year co-benefits project. The team are developing and testing a new methodology for policy development and change using creative techniques that seeks to solve environmental and social issues whilst also integrating the wellbeing, livelihoods and economic needs of local communities.

Suzy Van den Eynde  -
Let's Go Zero Coordinator and PA to Giles Bristow and Ed Dean

Suzy joined Ashden in 2008 and manages the Let’s Go Zero sign up process, liaising with campaign partners and  participating schools. Suzy supports our fundraising team with administration and events organisations. She also provides PA support to the directors of programmes and development.

Sue Wheat -
Press and PR Lead

Sue shares the powerful examples of our climate champions with media around the world. Prior to joining Ashden, she worked as a journalist and a communications professional specialising in environmental issues, refugees and international development. When not working, she loves honing her green building skills.

Matthew Ahluwalia  -
Cities Team

Matthew supports Ashden's UK awards work by carrying out research into new award themes, such as Citizen Engagement and Green Skills. This includes investigating both sectors to better understand how the Ashden Awards can have the greatest impact, whilst beginning new conversations with potential applicants for the awards. He also supports the Cities programme through providing research for our range of publications and events.

Nashwa Naushad - Programme Officer

Nashwa helps coordinate the Fair Cooling Fund programme, Ashden's first ever grant project, and works with the team to oversee the delivery phase. She also supports the Awards work, particularly Energy Access and Humanitarian Energy, with research and discovering potential applicants.

Emma Seery - Digital Communications Lead

Emma looks after Ashden’s online presence, making sure our website is the best it can be, positioning Ashden as a bold voice for change across our digital channels, and growing our online community to maximise reach and impact.

Hugh Tyler-Wray -  Communications Assistant

Hugh is a member of the digital communications team, working with Emma and focusing on ensuring that our campaigns get as much social media exposure as possible.

Fiona Duggan -  Impact and Policy Lead

Fiona is Ashden’s policy and impact lead. She is responsible for making sure all our work is anchored in our strategic goals and informed by evidence, data and insight – and focused on impact.

Previous to Ashden she held planning and policy positions at EIT Climate-KIC, Amnesty International and Theirworld. She holds an LLM in International Law and International relations.

Frieda Wignall - UK Towns and Cities Research Intern

Frieda works alongside Matthew, Cara and Emma Jones in the Cities Team. She is based in Nottingham, where she was born and raised, having also recently graduated from the University of Nottingham. She investigates inspiring local and grassroots examples of innovative climate solutions across the UK.

Catherine True - Grant Fundraising Strategic Lead

Catherine works alongside the Director of Business Development to ensure Ashden has the financial resources to pursue its mission.  This involves fostering relationships with government and philanthropic funders and developing grant funding proposals.

Prior to joining Ashden she held fundraising positions at ActionAid UK, British Red Cross and Frontline AIDS.  When not working, she can often be found walking on the South Downs.

Ashden 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 -

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 -

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 -

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 -

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 -

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 -

Agamemnon is Founding Director of Energy Garden, Brixton Energy, Repowering, and Community Energy England and has a wealth of experience in community energy policy, finance, project development, management, and operations.

He helped launch UK industry advocacy body Community Energy England, and draft the Europe’s first national community energy strategy. He project managed energy coops Brixton Energy 1, 2, & 3,  Banister House Solar and Vauxhall Energy.

He is currently CEO of London’s largest community-owned solar project, Energy Garden. Previously, he was Director for Renewable Energy Project Finance and Social Responsibility at a financial institution and CFO for a renewable energy trading company. 

In 2014, he was made a London Leader; in 2016, he was awarded an MBE for services to community energy in the UK; and in 2017, he was named one of the 51 Most Impactful Green Leaders globally by CSR Congress.

He is frequently asked to speak about sustainable, low-carbon economies and has a master’s degree in Architecture: Advanced Environment & Energy and a Baccalaureate in Pre-Medicine, Literature and Fine Arts. His story is featured in the documentary “We the Power”, which had over 1 million views in its first month.

Andrew Reicher -

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.

Mark Campanale - Trustee

Mark is the Founder of the Carbon Tracker Initiative and conceived the ‘unburnable carbon’ capital markets thesis. He commissioned and was editor of Unburnable Carbon – Are the World’s Financial Markets Carrying a Carbon Bubble? in November 2011.  More recently, Mark co-founded ‘Planet Tracker’ which focuses on agriculture, seafood, forestry, water and textiles.  Mark is responsible for management strategy, board matters and developing their capital markets framework analysis. Their goal is to align capital markets with natural ecological limits to growth.

Prior to forming these groups, Mark had twenty five years experience in sustainable financial markets working for major institutional asset management companies.  Mark is a co-founder of some of the first responsible investment funds firstly at Jupiter Asset Management in 1989 with the Ecology Funds, NPI with Global Care, the AMP Capital Sustainable Future Funds, and Henderson Global Investor’s Industries of the Future Funds.

Mark served on the World Business Council for Sustainable Development working group on capital markets leading up to the 1992 Earth Summit; was a Member of the Steering Committee of UNEP Financial Sector Initiative (1999-2003). Mark is a Founder Director of the UK Sustainable and Responsible Investment Forum (UKSIF), 1990-2006, a member of the Advisory Board of the New Venture Philanthropy’s ‘Conservation and Markets Initiatives’; is Hon Treasurer of The Rainforest Foundation UK and on the Development Board of the Ashden Awards. Mark is an advisor to Consilium Capital, to Faith Invest and serves on the Advisory Board of Tribe Impact Capital. Additionally, Mark is Visiting Lecturer at the Master’s Course of the University of Cambridge’s Institute for Sustainability Leadership.

Mark has a BA in Politics & Economic History and an M.Sc in Agricultural Economics.

Louise Marix Evans - Trustee

Louise has over 18 years’ experience of tackling climate change with local authorities and city-regions with a strong focus on citizen engagement and delivering action.  She has supported Greater Manchester Combined Authority and various North West local authorities for over 12 years. She maintains her local focus through community renewable energy, local resilience groups and has set up a Repair Café in her village which is a haven of waste reduction and chatting over tea and cake.

During 2020 she was a Senior Advisor to the Climate Change Committee, focusing on local delivery of the sixth carbon budget. She researched and wrote Local Authorities and the Sixth Carbon Budget published alongside the Sixth Carbon Budget in December 2020.

Her early career focused on human rights in the Middle East, at Amnesty International and landmines charity, MAG.

This site uses cookies to provide you with the best user experience. By using the Ashden website, you accept our use of cookies.

Stay up to date

Be the first to know about our latest projects and news