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Ukraine’s Energy Security
A pre-winter assessment As Ukraine enters its fourth winter of war, ensuring that residents retain reliable access to heat and power is of the utmost importance. While Ukraine made strong strides in rebuilding and strengthening the resilience of its energy system this past spring and summer, the situation remains fragile, and the risk of huge disruptions and widespread destabilisation remains – particularly as Russia expands the scope and sophistication of its attacks.This analysis builds on the IEA’s September 2024 report, Ukraine’s Energy Security and the Coming Winter. It provides an update on the latest developments through October…
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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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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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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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Powering Ireland’s Energy Future
Approaches for a secure, renewables-led electricity system to 2035 Ireland has emerged as a frontrunner in integrating wind power, which supplied around a third of its electricity in 2024. As this power system transformation continues, electricity is set to be the backbone for achieving Ireland’s climate, energy and socio-economic ambitions, making electricity security critical to realising progress in key areas including housing, digital infrastructure, transport and heat. Going forward, Ireland faces strategic choices on how to align its ambitions while ensuring secure electricity supply to 2035.This report assesses the outlook for Ireland’s energy security to…
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World Energy Outlook 2025
The IEA’s flagship World Energy Outlook (WEO) is the most authoritative source of global energy analysis and projections. Updated annually to reflect the latest energy data, technology and market trends, and government policies, it explores a range of possible energy futures and their implications for energy security, access and emissions. The WEO covers the whole energy system, using a scenario-based approach to highlight the central choices, consequences and contingencies that lie ahead. It includes exploratory scenarios that flow from different assumptions about existing policies, as well as normative pathways that achieve energy and emissions goals in full. The multi…
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National Climate Resilience Assessment for Mozambique
Mozambique’s energy system has experienced significant disruptions due to extreme weather events, notably tropical storms and cyclones. With climate change, storms are projected to intensify, as are the risks of seasonal droughts and floods, posing a threat to the reliable operation of hydropower generation and the secure operation of the country’s coal mines. Mozambique’s plans to diversify its energy supply are an important step to enhance energy security and could be complemented by targeted measures to make its electricity system more resilient to natural hazards. Storms and tropical cyclones present the most regular extreme weather event faced…
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IEA Support to Accelerating Renewable Energy Permitting (ARPE)
Between October 2023 and March 2025, the IEA implemented the “Accelerating Renewable Energy Permitting” (ARPE) action. The goal of ARPE was to support five EU Member states – Finland, Ireland, Lithuania, the Netherlands, and the Slovak Republic (Focus countries) – in developing and implementing policy and regulatory measures aimed at reaching their renewable energy targets, notably through accelerating permitting of renewable energy projects.In support of this objective, the IEA organised and facilitated five workshops focused on the following topics:streamlining administrative proceduresaccelerating offshore wind deploymentfacilitating spatial planning for renewable energy deploymentensuring public engagement and acceptance, and afinal workshop summarizing the project…