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Ronan Graham
Senior Energy Security Analyst.
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Deniz Ugur
Consultant.
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Yoko Nobuoka
Former Energy Investment Analyst.
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Energy Efficiency Policy Toolkit Heat Pumps for Buildings
Heat Pumps for Buildings
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Nick Butler
Visiting Professor. Nick Butler is chair of the Kings Policy Institute at Kings College. He spent 29 years at BP, five of them as Group Vice President for Policy and Strategy Development, and later served as a senior advisor to former British Prime Minister Gordon Brown. Mr Butler is also an energy commentator for the Financial Times.
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Toshiyuki Shirai
Former World Energy Outlook Analyst.
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Sue-Ern Tan
Head of the IEA Regional Cooperation Centre. Sue-Ern Tan is the Head of the IEA Regional Cooperation Centre established in Singapore at the end of 2024. The Office is the first outside of the IEA’s Paris headquarters in its 50-year history and will provide policy guidance, technical assistance, training and capacity building across areas such as scaling-up the deployment of renewables and other clean energy technologies, increasing cross-border power trade, and improving access to finance for clean energy investment.Prior to joining the IEA, Ms Tan worked at Shell plc in senior climate and energy roles at Shell’s headquarters in London and The Hague and most recently in Singapore as the Head of Policy and Advocacy. Ms Tan practiced as a lawyer, worked as Ministerial adviser on energy in the Australian Government and was the Deputy CEO of a minerals trade association in Australia. She graduated from University of New South Wales in Australia with a Commerce and Law Degree and is an Eise...
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Bruce Murphy
Former India Programme Manager.
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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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Multiple Benefits of Energy Efficiency for Business Turning the opportunity into reality
Across sectors, the evidence consistently shows that the value of energy efficiency extends far beyond energy savings, often matching or even exceeding them.A key challenge is that much of this value is not systematically captured in investment decisions. Business cases are often built on energy savings alone, overlooking gains in productivity, resource efficiency, product quality, brand reputation and workforce health. Reflecting these wider benefits can significantly strengthen investment cases and improve how efficiency projects compete for capital.This report draws on available evidence to highlight these broader benefits and why they matter in practice. The steps below show how…
