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Global Energy and Climate Model About the Global Energy and Climate Model
Overview Since 1993, the IEA has provided medium- to long-term energy projections using a continually evolving set of detailed, world-leading modelling tools. First, the World Energy Model (WEM) – a large-scale simulation model designed to replicate how energy markets function – was developed. A decade later, the Energy Technology Perspectives (ETP) model – a technology-rich bottom-up model – was developed for use in parallel to the WEM.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…
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Global EV Outlook 2026 Electric vehicle batteries
Electric vehicle battery deployment Electric vehicle battery deployment grew by almost 30% in 2025 Electric vehicles (EVs) remained the primary source of global battery deployment, accounting for more than 70% of the total in 2025, slightly down from almost 80% in 2024. In 2025, EV battery deployment reached 1.2 TWh, an increase of almost 30% compared to 2024, and more than 7 times greater than in 2020. Light‑duty vehicles remained the dominant segment, representing more than 85% of the 2025 EV battery deployment. However, the fastest growth came from electric trucks, for which battery demand more than doubled – largely thanks…
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Outlook for Biogas and Biomethane Key findings
Biogases are a hidden solution to many of today’s energy security and sustainability challenges. They turn waste into sustainable, low-emissions fuels. The attraction of biogases lies in the integration of energy, environment, waste and emissions policies and targets. Biogas can be used directly as heat by households and industry, and to produce electricity. Biomethane, which is an upgraded form of biogas, is a locally sourced, drop-in substitute for natural gas. This report assesses the global potential and costs of developing biogas and biomethane using a first-of-a-kind geospatial analysis. It provides detailed country- and region…
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Energy Efficiency 2024 How can energy efficiency alleviate rising heatwave-driven electricity demand?
Another year of high temperatures leads to new electricity demand records and power outages Global temperatures have reached new heights in recent years. 2023 was the warmest year on record, and 2024 is on track to beat it. The frequency and intensity of heatwaves are increasing, causing extreme temperatures of up to 50ºC in some regions, with multiple national temperature records broken during 2024. Ensuring that cooling needs are met is of primary importance. The extreme temperatures are driving strong demand for much-needed cooling technologies such as air conditioners. However, these are also pushing up electricity use to record…
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Global Energy Review 2025 Global trends
Energy demand accelerates, with electricity leading the way Different elements of the world’s energy system saw very different rates of growth in 2024, reflecting both the impact of short-term factors and deeper structural trends. Global energy demand grew by 2.2% in 2024, a notably faster rate than the annual average of 1.3% seen between 2013 and 2023. This uptick was partly due to the effect of extreme weather, which we estimate added 0.3 percentage points to the 2.2% growth. Despite this, energy demand grew more slowly than the global economy, which expanded by 3…
- Key findings
- Global trends
- Oil
- Natural gas
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+ 3 pages
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Diane Cameron
Head of the Nuclear Technology Development and Economics Division, Nuclear Energy Agency. Diane Cameron is Head of the Nuclear Technology Development and Economics Division at the OECD Nuclear Energy Agency (NEA). In her role at the NEA, she leads an expert team of economists and scientists that supports energy policy and nuclear energy policy development among NEA Member Countries by advancing evidence-based, authoritative assessments and analyses in the areas of nuclear economics, financing, and cost reduction, as well as nuclear technology, innovation, and the fuel cycle.
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Electricity 2026 Emissions
CO2 emissions from electricity generation are forecast to plateau through 2030 In 2025, global emissions from electricity generation remained flat, after increasing 1.5% and 1.4% in in the previous two years, respectively. Even with strong gains in electricity demand, growth in power sector emissions is showing marked signs of slowing down as fossil-fired generation is constrained by the rapid deployment of renewables and rising nuclear power generation. As this trend continues, we forecast global emissions from power generation to plateau over our 2026-2030 outlook period due to significant increases in clean energy sources, despite electricity demand…
- Executive summary
- Demand
- Supply
- Grids
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+ 4 pages
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World Energy Investment 2025 Executive summary
Despite elevated geopolitical tensions and economic uncertainty, this tenth edition of the IEA’s World Energy Investment shows that capital flows to the energy sector are set to rise in 2025 to USD 3.3 trillion, a 2% rise in real terms on 2024. Around USD 2.2 trillion is going collectively to renewables, nuclear, grids, storage, low-emissions fuels, efficiency and electrification, twice as much as the USD 1.1 trillion going to oil, natural gas and coal. Open questions about the economic and trade outlook means that some investors are adopting a wait-and-see approach to new project approvals, but we have yet…
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Coal 2025 Trade
International coal trade is set to decline in 2025 International coal trade grew by 3% in 2024, reaching a new record of 1 544 Mt. This growth was driven by increases in both thermal coal (up 26 Mt to 1 176 Mt) and met coal (up 21 Mt to 368 Mt). Coal trade accounted for approximately 18% of global coal demand, with thermal coal making up more than three-quarters of total traded volumes. Seaborne trade continued to dominate, representing over 90% of global coal trade in 2024.The Asia Pacific region further strengthened its dominance, accounting for 85% of global coal imports in 2024. China led…
- Executive summary
- Demand
- Supply
- Trade
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+ 2 pages
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Global Energy Review 2026 Key findings
All major energy fuels and technologies grew in 2025 – but at very different rates. Overall global energy demand growth slowed to 1.3%, just below the average for the previous decade. Slower economic growth and slower growth in energy-intensive industries in some regions, lower cooling demand, and faster efficiency improvements all contributed to slower demand growth.Solar PV, the largest single source of growth, met more than 25% of higher demand, followed by natural gas, which contributed 17%. This was the first time on record that a modern renewable source contributed the largest share of global energy demand growth…
- Key findings
- Global trends
- Oil
- Natural gas
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+ 9 pages
