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Global Energy and Climate Model
Scenario analysis of future energy trends Global Energy and Climate Model Over the past four years, the IEA has worked to develop a new integrated modelling framework: the IEA’s Global Energy and Climate (GEC) Model. This model is now the principal tool used to generate detailed sector-by-sector and region-by-region long-term scenarios across IEA's publications, including the World Energy Outlook series and Energy Technology Perspectives series.In 2021, the IEA adopted for the first time a new hybrid modelling approach relying on the strengths of both models. The integrated framework of the IEA’s Global…
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Energy security
Multiple benefits of Energy Efficiency 2025 Energy efficiency provides multiple benefits. This page explores energy security. Why is energy efficiency important for energy security? Energy efficiency can help mitigate energy security risks by reducing the reliance on fossil fuel imports, improving grid reliability, and acting as a buffer to supply shocks. Key facts Efficiency gains from the last two decades avoided the need for 20% more fossil fuel imports in IEA countries. Energy efficiency and demand response can support grid reliability by reducing peak demand. For instance, more efficient air conditioners in India could lower the impact of heatwaves on…
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Grid investments
Multiple benefits of Energy Efficiency 2025 Energy efficiency provides multiple benefits. This page explores grid investments. Why is energy efficiency important for grid investments? As we enter the Age of Electricity, global electricity demand is rising rapidly – and so is the demand for the expansion of electricity grids. Energy efficiency can help close the gap between supply and demand, but often at a lower cost, and more quickly, than new generation and grid expansion. Key facts On average, energy efficiency costs less than half the amount it would cost to build new generation capacity and grid infrastructure, per unit of…
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Gas Market Report, Q2-2026
This edition of the IEA's quarterly Gas Market Report provides a comprehensive review of developments during the 2025/26 heating season and a special spotlight on the effects of the war in the Middle East on international gas markets. Amid the major supply shock caused by the disruptions to shipping through the Strait of Hormuz and attacks on regional energy infrastructure, it examines the conflict’s implications for gas supply and demand at both the regional and global levels. The report also analyses the consequences for storage, shipping and prices – providing critical insights on evolving market trends.The loss of nearly…
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Oil 2025
Analysis and forecast to 2030 Global oil markets have so far had a turbulent 2025. Heightened trade tensions and uncertainty have weighed on the world economy and, by extension, oil demand growth. Combined with the recent OPEC+ decision to accelerate the unwinding of oil production curbs that have been in place for several years, these factors have recently pushed international oil prices to four-year low in April and early May. At the same time, shifts in energy policies are affecting oil producers and consumers alike, with oil supply security remaining high on the international energy policy agenda.Oil 2025…
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Gas Market Report, Q1-2026
Natural gas markets continued to rebalance in 2025. Global LNG supply returned to double-digit growth in the second half of the year, supported by the ramping-up of new LNG liquefaction projects in the United States, Canada and Africa. This strong growth is gradually easing market fundamentals and contributing to a more secure and resilient global gas market.Global LNG supply growth is set to accelerate further in 2026, fostering a stronger increase in natural gas demand, which is expected to reach a new all-time high. Although the LNG supply growth is reducing market tightness, geopolitical tensions and…
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Best Practices and Insights to Expand Clean Energy Access and Adoption
This report was commissioned by the European Commission to serve as a technical repository of analysis and evidence-based practices in support of the Campaign on Sustainable Lifestyles, Fairness and Access to Clean Energy Technologies. The analysis presented draws on discussions and research shared during the Widening Participation in Clean Energy workshop held in Brussels, contributions presented at the official all-member meetings of the Campaign on Sustainable Lifestyles, and the IEA’s analytical work in areas such as people-centred clean energy transitions, affordability, energy efficiency and clean energy access.This work is organised into three chapters, each corresponding…
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Electricity Market Design
Building on strengths, addressing gaps Electricity markets play a central role in balancing supply and demand, guiding operational decisions and shaping investment outcomes. As systems change with higher shares of variable generation, greater decentralisation and evolving patterns of electricity use, the ability of market designs to deliver secure and affordable electricity has never been more critical. If market arrangements do not keep pace with these developments, the functioning of electricity systems could become more uncertain and more costly.This report provides a cross-regional assessment of how wholesale electricity markets and their complementary policy mechanisms are performing today. We find…
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Energy Efficiency Policy Toolkit
The Energy Efficiency Policy Toolkit is an interactive online tool that has been updated and expanded ahead of the 11th Annual Global Conference on Energy Efficiency in Montreal, Canada. It aims to support governments in designing and implementing effective energy efficiency measures by combining policies across three core pillars: regulation, information and incentives. It also features a wide range of case studies, offering practical insights into the successful implementation of energy efficiency policies across diverse national and sectoral contexts.The Toolkit builds on earlier IEA work to advance energy efficiency policy. In 2022, the IEA introduced Policy Packages for Energy…
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The State of Energy Innovation 2026
The second edition of The State of Energy Innovation turns the spotlight on the technologies, policies and funders at the forefront of energy technology development. It provides a comprehensive assessment of recent progress and emerging challenges in energy technology innovation, drawing on over 150 innovation highlights from 2025 and a survey of practitioners across more than 40 countries. It analyses trends in public and corporate R&D spending, venture capital flows, patenting and policy, as well as providing an update on progress towards the 18 IEA Races to First in energy innovation. This data-driven approach informs policy makers, industry…
