Our judges are drawn from across the climate sector and bring a huge amount of expertise, insight and first-hand experience to the judging process. They'll be choosing the winners who will be revealed at Climate Week NYC in September.
Meet the judges
RE100 changemaker
Christopher Guérin, Chief Executive Officer, Nexans
Chief Executive Officer of Nexans. Since 2014, Christopher Guérin held the position of Senior Executive Vice President, Europe and Telecom/Datacom, Power Accessories Business Groups. Prior to this date, he was in charge of the Industry Market Line, which he took over in 2013 after having held, for 6 years, various Sales and Marketing functions in France and Europe. Between 2005 and 2007, while he was Sales Director Europe, Christopher joined Alcatel Cables, became Nexans in 2001, in 1997 in the Metallurgy division where he held various Sales and Marketing Directorship positions. Christopher is a graduate of ESDE / American Business School. He has also followed the INSEAD Management Acceleration Program.
Sarah Dimson-Taruj, Acting Director, Partnerships Office, Power Africa
Sarah’s background intersects the fields of urban planning, energy, and international development— spanning nearly two decades of work to find and implement new ways to construct smarter buildings, build climate-resilient communities, and deploy renewable energy and energy storage tech. Sarah has worked in the private and public sectors, including roles at the U.S. Agency for International Development (USAID)-Power Africa, World Bank Group, Abode Communities Sustainable Developers, and in management consulting—spanning sub-Saharan Africa, South Asia, and the U.S.
Sarah is a USGBC Leadership in Energy and Environmental Design (LEED) Accredited Professional with a BA in Science Technology and Society from Stanford University, and Masters degree in Urban Planning-International Development & Energy from the Massachusetts Institute of Technology (MIT). She lives in Maryland with her husband and toddler, and is an avid runner and gardener.
Lucy Hunt, Manager, Energy, World Business Council for Sustainable Development (WBCSD)
Lucy is the renewable power lead at the World Business Council for Sustainable Development (WBCSD), a global, CEO-led organisation of over 200 leading businesses working together to accelerate the transition to a sustainable world. Lucy manages the REscale project at WBCSD, convening ambitious companies from the full renewable value chain to collaborate on solutions to accelerate the deployment of renewable energy. Before joining WBCSD in 2018, Lucy spent four years working on low carbon technology and energy efficiency projects at the Carbon Trust
RE100 market trailblazer
Subrahmanyam Pulipaka, CEO, National Solar Energy Federation of India
Subrahmanyam leads the National Solar Energy Federation of India, an umbrella organisation representing solar energy companies in India. He is the recipient of BRICS Energy for Thought - Young Scientist award – 2018 and BITSAA 30Under30 award. With more than 15 scientific publications to his name, he has been involved in active research on the reliability of solar photovoltaic modules. Subrahmanyam has also been involved in solar skill development and policy deliberation activities and addressed various intergovernmental sessions. He is an alumnus of BITS Pilani and is also the founding chairman of India Africa Youth Energy Forum
Reitumetse Molotsoane, Programme Manager: Energy and Climate, National Business Initiative (NBI)
Reitumetse was formerly Director, Mitigation Response Analysis and Director, Climate Change Priority Programmes at the South African National Department Forestry, Fisheries and Environment. She led the analysis and reporting of national mitigation actions to various audiences, including the United Nations Framework Convention on Climate Change. She provided strategic and advisory services in the development and implementation of South Africa’s Climate Change Flagship Programmes. Reitumetse was previously the Senior Manager for Climate Change at EY and Senior Consultant at Camco Clean Energy. Reitumetse holds an MSc from Imperial College, London.
Miho Kurosaki, Independent Climate Change/ESG Specialist
Miho has 15 years of experience in ESG and climate change and advised policy makers including ministers, investors, companies on their ESG and climate change strategies based on analysis and data. She has managed a diversified team in Tokyo but also worked with global teams at Bloomberg. Miho has delivered many public speeches including committees with Japan’s Prime Minister and moderated international panel discussions such as in the G20. Miho holds an MSc in Environmental Technology from Imperial College London and a BA in Economics from Keio University in Tokyo.
RE100 key collaborator
Sarah Golden, Senior Energy Analyst, GreenBiz
Sarah is the VERGE Energy Conference Chair and senior analyst for GreenBiz Group. Sarah has over ten years of experience in climate, clean energy and politics. She holds Bachelors degrees in politics and environmental studies from Whitman College and was an Annenberg Dean’s Scholar at the University of Southern California, where she earned a Masters degree in communications.
Sarah Mihalecz, Senior Director, Transaction Acceleration Group, Clean Energy Buyers Association (CEBA)
Sarah is the Senior Director for the Transaction Acceleration Group at CEBA. Sarah joined CEBA from Tata Sons where she led sustainability for North America. Before joining Tata Sons, she was Senior Manager in Deloitte Consulting’s Sustainability for five years. At Deloitte and while at ICF Consulting and GHD Consulting, she worked with retailers, consumer goods companies, governments and small start-ups to measure and manage environmental and sustainability issues and conduct carbon inventories, life-cycle assessments, and develop public reports
Bruce Douglas, Director of Business and Communications, Eurelectric
Bruce Douglas has 25 years’ international experience in the promotion of renewable energy and electrification. He is currently Director of Communications and Business at Eurelectric based in Brussels, representing over 3000 companies active in the European power sector. Previously he has held the following positions: Deputy CEO of SolarPower Europe, Coordinator of the RE-Source Platform – the European alliance for corporate sourcing of renewable energy, founding Chairman of the Global Solar Council (GSC), Chief Operating Officer at WindEurope for 10 years, founding Secretary General of the Global Wind Energy Council (GWEC) and Managing Director of FLiDAR, an offshore wind company. He has a Master degree in renewable energy systems technology and is fluent in English and French
RE100 enterprising leader
Dr Shihfang Lo, Research Fellow, Chung-Hua Institution for Economic Research (CIER)
Shihfang's research spans the fields of energy and environmental policies, performance evaluation, finance, and corporate social responsibilities. Founded in 1981, CIER is an international policy think-tank for economic and industry-related research. CIER has been the regional delivery partner of Climate Group for RE100 in Taiwan since 2019.
Yusuke Matsuo, Director of Business Task Force, Institute for Global Strategies
Yusuke is a Director at the Institute for Global Environmental Strategies where he leads on their work supporting corporates and policy actions. He is also the Director of the Secretariat of Japan Climate Leaders' Partnership, an independent business coalition bringing together companies from sectors across Japan to drive corporate ambition for a clean energy transition. Previously, Yusuke was a Senior Analyst at an investment advisory firm and worked at Sanwa Bank (current MUFG Bank). He received the Kaya Award from the Japan Society of Energy and Resources and the Best Awards from the Ministry of Environment in Japan in 2007 and 2010.
Joyce Lee, President, IndigoJLD Green Health
Joyce Lee, FAIA, LEED Fellow, is President of IndigoJLD providing green health, design, benchmarking and ESG planning services for exemplary projects and communities. She became one of 300 LEED Fellows worldwide while being on the board of trustees of the Grand Rapids Art Museum, the first LEED NC certified museum in the world. Joyce has also been on adjunct faculty at the University of Pennsylvania focusing on building healthy places and was board director of the French American Chamber of Commerce PHL. Since 2021, she has chaired the American Alliance of Museums Environment and Climate Network and serves as a Senior Advisor to Econsult Solutions. In 2022, she was appointed by Mayor Kenney in Philadelphia to serve as an inaugural commissioner for environmental justice. Joyce is the recipient of numerous awards including the Health and Human Services Good Neighbour Award, Platinum Award from the American Council of Engineering Companies, the President's Award from the American Institute of Architects (AIA) New York State, and the Aga Khan Award from Harvard/MIT.
Beyond 100%
Pierre Tardieu, Chief Policy Officer, Wind Europe
Pierre is Chief Policy Officer at WindEurope, the voice of the wind industry. WindEurope promotes wind energy across Europe on behalf of its 450 members from the whole value chain: wind turbine manufacturers, component suppliers, power utilities and wind farm developers, financial institutions, research institutes and national wind energy associations. Pierre leads WindEurope’s Policy Department spanning advocacy, innovation, market intelligence and stakeholder engagement. He holds degrees from College of Europe, Paris Catholic Institute and Strasbourg Institute of Political Science.
Kanika Chawla, UN Energy Programme Manger, Sustainable Energy for All (SE4ALL)
As the UN Energy Programme Manager, Kanika works with the UN Secretary General’s Special Representative and CEO of SEforALL, and co-Chair of UN-Energy, to advance the twin objectives of energy access and energy transition at scale, especially in the context of the SDG Decade of Action. Kanika has 12 years of experience in clean energy and energy transition policy and markets, with expertise in the intersection between energy and finance. She has previously worked at Council on Energy, Environment, and Water (CEEW) in New Delhi, and at the REN21 Secretariat in Paris.
Alex Joss, Head of Systems Transformation, UNFCCC Climate Champions
Alex Joss leads a team of 35 experts spanning all real-economy sectors at UNFCCC. Their work drives collaboration between governments and businesses, cities, and civil society, all striving to fulfil the Paris goals. Prior to this role, Alex led outreach with the venture capital industry, commodity and carbon markets, cryptocurrencies, and Carbon Dioxide Removal (CDR). Alex was previously Chief of Staff for a rapidly growing AI business, and spent 5 years at McKinsey & Company, leading projects across the public, tech, and private equity sectors. His latest team is staffed with support from the World Economic Forum, the Rocky Mountain Institute, UN Global Compact, the Natural Resources Defense Council, in addition to leading corporates such as Arup, Accenture, BCG, Deloitte and JLL.
Best newcomer
Nam Hyun-woo, Cheong Wa Dae Correspondent, The Korea Times
Nam is a journalist who has been writing for The Korea Times since 2013. He covered economy and business from 2016 to April 2021, focussing on energy industry issues and corporate strategies for the transition to renewable power sources. He is now Cheong Wa Dae correspondent for the publication.
Christine Ervin, Independent Clean Energy Consultant
Christine draws on 30 years of public, private and nonprofit leadership roles to accelerate prosperous green markets and a healthy climate. As U.S. Assistant Secretary of Energy for President Clinton, she directed $1 billion in annual investments for clean and renewable energy technologies. As first President and CEO of the U.S. Green Building Council, she led its evolution from a start-up into a highly influential coalition of industry leaders transforming the way buildings are designed, built and operated. Previously, she directed the Oregon Department of Energy and conducted policy research at the World Wildlife Fund/Conservation Foundation. Christine’s consulting practice today focuses on speaking engagements and advisory services for private and public organizations including glynt.a1 and the federal-university C3E collaboration to promote women in clean energy, science and technology.
Kate Hughes, Director for International Climate Finance and Strategy, BEIS
Kate Hughes is currently Director for International Climate Finance and Strategy in the Department for Business, Energy and Industrial Strategy. Kate leads teams working on the long-term global transition to net zero, including supporting clean energy transitions, green finance, sustainable supply chains, and increasing the uptake of electric vehicles, as well as delivering on global climate ambition through the G7, G20 and UNFCCC.
She is Senior Reporting Officer for BEIS’s share of the UK’s £11.6bn International Climate Finance, overseeing a range of programmes designed to support developing countries to respond to the challenges and opportunities of climate change. The portfolio includes projects aimed at accelerating clean energy transitions, reducing deforestation, mobilising private finance, scaling up low carbon technologies and providing cutting-edge technical assistance, drawing on UK clean growth expertise.
Prior to this, Kate has worked on climate, energy and environmental issues in a number of Whitehall Departments including International Development; Energy and Climate Change; and Environment, Food and Rural Affairs.
