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Nick Johnstone
Chief Statistician. Nick Johnstone took up his duties as Chief Statistician and Head of the Energy Data Centre in February 2019. Previously he provided support to the work of the Committee on Industry, Innovation and Entrepreneurship (CIIE) in the Directorate for Science, Technology and Innovation at the OECD. He began his career at the OECD 1999, taking up the position of Head of the Empirical Policy Analysis Unit in the Environment Directorate. He previously held positions as a Research Associate at the International Institute for Environment and Development, and as a Research Officer at the Department of Applied Economics of the University of Cambridge. He holds a PhD in Economics from the University of Cambridge (UK), and has published widely in leading journals in the areas of energy, innovation, and environmental economics.
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Luca Lo Re
International Climate and Energy Analyst. Luca Lo Re leads the IEA work in the OECD/IEA Climate Change Expert Group. With OECD colleagues, he produces papers to enhance the understanding of technical issues in international climate change negotiations and Paris Agreement implementation. In particular, his works focuses on international carbon markets (Art. 6 of the Paris Agreement). He also leads the organisation of the annual IEA-IETA-EPRI GHG Emissions Trading Workshop, and supports various works of the Agency related to Net Zero.
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Mary Burce Warlick
Deputy Executive Director. Mary Burce Warlick is the Deputy Executive Director of the International Energy Agency (IEA). A retired career diplomat and former U.S. Ambassador to Serbia, Ms. Warlick has held a variety of senior leadership positions at the U.S. Department of State, National Security Council and Department of Defense, serving in Washington and abroad. From 2014-2017 she served as the State Department’s Principal Deputy and Acting Special Envoy for International Energy Affairs and represented the U.S. on the IEA Governing Board Ms. Warlick holds a B.A. in Political Science and an M.A. in Law and Diplomacy.
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Valeria Arroyave Cardozo
Project Manager. Valeria Arroyave Cardozo is a Project Manager at the United Nations Industrial Development Organization (UNIDO), where she leads the Energy Efficiency for Livelihoods in Africa (EELA) Regional Project. The initiative focuses on transforming markets for energy-efficient appliances and services through enhanced policies, increased investments, and the development of sustainable local value chains.Since joining UNIDO in 2021, she has contributed to global efforts in sustainable cooling, energy efficiency, and the critical minerals supply chain, supporting the broader clean energy transition. Previously, Valeria spent five years at the United Nations Development Programme (UNDP), specializing in climate transparency and strengthening national capacities to meet climate commitments through Nationally Determined Contributions (NDCs) and greenhouse gas (GHG) emissions reporting.She holds an engineering degree and a Master of Public Administ...
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Pablo Hevia-Koch
Head of Renewable Integration and Secure Electricity. Pablo Hevia-Koch is the Head of Renewable Integration and Secure Electricity at the International Energy Agency (IEA). In this role, he oversees work on integration of renewables in power systems, electricity security, power grids, and electricity market design, focused on both emerging and established economies. An electrical engineer by training, he holds a Ph.D. in Energy Economics from the Technical University of Denmark.
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Jose M Bermudez
Energy Technology Analyst. Jose M Bermudez is an Energy Technology Analyst at the International Energy Agency (IEA), where he coordinates the analytical work of the IEA in hydrogen technologies. He is also the coordinator of the Clean Energy Ministerial Hydrogen Initiative. Jose has more than 15 years of professional experience, working in research, innovation and energy policy in the areas of hydrogen, bioenergy and alternative fuels.
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Fabian Voswinkel
Energy Efficiency Policy Analyst.
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Amani Al-Saidi
Former Energy Data Officer.
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Piotr Bojek
Energy Analyst - Renewable Energy Markets and Policies.
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Marta Silva
Former Energy Data Officer.
