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Contributor
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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Policy report
Oct 2025
Financing Electricity Access in Africa Beyond new connections
Providing an affordable, equitable and quality service Affordability constraints can prevent households from gaining access to electricity or from taking advantage of electricity services once a connection is made. An estimated 220 million people in sub-Saharan Africa (around 40% of those without access) would find the basic bundle unaffordable, rising to 400 million for the essential bundle (65% of those without access). Filling this affordability gap would cost an additional USD 2-10 billion per year, via supply-side subsidies to reduce developer costs, demand-side subsidies to reduce consumer costs, or reductions in financing costs.The cost of capital for electricity access projects…
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Contributor
Tan See Leng
Minister for Manpower and Minister-in-Charge of Energy, Science and Technology.
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Policy report
Jun 2026
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…
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Fuel report
Nov 2025
Energy Efficiency 2025 Buildings
How and where is energy used? Total final consumption in 2024 was over 450 EJ and has grown by around 25 EJ since 2019. Buildings account for around 30% of global energy demand and have contributed around 20% of the growth in total demand since 2019. The residential sector makes up about 70% of total energy demand in buildings, while the remaining 30% is used in commercial and public buildings.In advanced economies, most energy in homes is used for space and water heating, together accounting for about 70%. This is followed by the use of electrical appliances, such as refrigerators, televisions…
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Fuel report
Nov 2025
Electricity Market Design Executive summary
Electricity systems are changing fast, and market design must evolve with them Electricity systems are undergoing rapid structural change, increasing the need for market frameworks that keep pace with evolving operational and investment requirements and possibilities. Electricity is central to modern economies, and its role is expanding as consumption patterns shift, digitalisation accelerates, energy systems decentralise, and variable resources grow. Across major regions, these trends are increasing the complexity of real-time operations and reshaping investment dynamics. Short-term and seasonal flexibility needs are projected to grow faster than demand over the next decade, while electrification in many sectors is…