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Lithuania 2025
…was prepared in partnership between the Government of Lithuania and the IEA. It draws on the IEA’s extensive knowledge and the inputs of expert peers from IEA Member countries to assess Lithuania’s most pressing energy sector challenges and provide recommendations on how to address them, backed by international best practices. The report also highlights areas where Lithuania’s leadership can serve as an example in promoting secure and clean energy transitions. It also promotes the exchange of best practices among countries to foster learning, build consensus and strengthen political will for a sustainable and affordable energy future. Translation
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Key Questions on Energy and AI
Following the publication of the IEA’s landmark Energy and AI report in 2025, this report examines how the energy and AI nexus has evolved amid surging investment in data centres and rapid advances in model capabilities. Drawing on fresh datasets and analysis, it explores where electricity demand is rising, how quickly grids and supply chains can respond, and what these shifts mean for energy security, affordability and sustainability.
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Germany 2025
…Review was prepared in partnership between the Government of Germany and the IEA. It draws on the IEA's extensive knowledge and the inputs of expert peers from IEA Member countries to assess Germany’s most pressing energy sector challenges and provide recommendations on how to address them, backed by international best practices. The report also highlights areas where Germany’s leadership can serve as an example in promoting secure clean energy transitions. It also promotes the exchange of best practices among countries to foster learning, build consensus and strengthen political will for a sustainable and affordable clean energy future.
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Buildings
Buildings
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Energy security
…demand; with rising air‑conditioner ownership and increasing temperatures, this value rose to 7 GW in 2024 and could further rise to 12 GW in 2030 without further efficiency action. If India were to experience similar heatwaves as in recent years – with temperature anomalies of over 4°C – the additional peak load would amount to 47 GW. However, if all new air conditioners in India were highly efficient (e.g. through increased minimum energy performance standards), peak load during a heatwave could be reduced by almost 9 GW or about 20%, significantly decreasing the risk of blackouts or brownouts. Need more information? IEA (2025), Energy Security.
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Korea 2025
…was prepared in partnership between the Government of Korea and the IEA. It draws on the IEA’s extensive knowledge and the inputs of expert peers from IEA Member countries to assess Korea’s most pressing energy sector challenges and provide recommendations on how to address them, backed by international best practices. The report also highlights areas where Korea’s leadership can serve as an example in promoting secure and clean energy transitions. It also promotes the exchange of best practices among countries to foster learning, build consensus and strengthen political will for a sustainable and affordable energy future. Translation
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Energy Efficiency in China’s Buildings Sector
…progress in achieving them. Regulation for new buildings in China, such as building codes, is relatively strong. However, as the rate of construction is slowing, policy priorities are shifting towards retrofitting existing buildings. Here, the IEA estimates that through strong policy action and best-in-class technology, China could reduce energy consumption by up to 65% in buildings constructed between 1995 and 2010, representing energy savings of over 8 000 Petajoules.The report includes examples from across China and the world on leading regulatory instruments, financial incentives, and information-based tools that can drive energy efficiency in the buildings sector.
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Portugal 2026
…Review was prepared in partnership between the Government of Portugal and the IEA. It draws on the IEA’s extensive knowledge and the inputs of expert peers from IEA Member countries to assess Portugal’s most pressing energy sector challenges and provide recommendations on how to address them, backed by international best practices. The report also highlights areas where Portugal's leadership can serve as an example in promoting secure and clean energy transitions. It also promotes the exchange of best practices among countries to foster learning, build consensus and strengthen political will for a sustainable and affordable energy future.
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Powering Ireland’s Energy Future
…s energy security to 2035, drawing on international experience and detailed power system modelling developed with EirGrid, Ireland’s transmission system operator. The Adapted Transition Pathway illustrates how climate, energy and socio-economic goals align around the electricity system, potentially doubling demand and requiring faster infrastructure delivery and deployment of renewables. We find that there is a clear need to establish a unified cross-sectoral energy strategy to set a vision that guides this transition, supported by a detailed security study on the electricity supply mix.The analysis sets out five pillars for policy action: Establishing a cross-sectoral energy…
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The Value of Demand Flexibility
…balancing This policy brief, developed under the International Energy Agency’s Digital Demand-Driven Electricity Networks (3DEN) Initiative, examines the value of demand flexibility as a core component of modern electricity systems, with a strong emphasis on its role in improving energy efficiency. As electricity demand grows and power systems become more electrified, decentralised and renewable-rich, managing when and how electricity is used is increasingly as important as expanding supply.The brief sets out a clear framework for understanding demand flexibility and highlights its contribution to an efficiency-first approach to power system planning and operation. By shifting or…
