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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
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World Energy Investment 2025 India
India is working to diversify its power generation mix by promoting investment in renewables and nuclear to meet sharply rising electricity demand Electricity demand in India has been rising sharply due to increases in commercial and residential space, a surge in ownership of air conditioners and appliances, and rising demand from industry. India has seen the third-largest growth in power generation capacity in the world after China and the United States over the past five years. While growth in power generation has come from all sources, there has been a surge in investment in renewables, led by solar PV…
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State of Energy Policy 2026 Energy efficiency and fuel switching regulations
More than 130 countries have energy efficiency or fuel switching regulations in place, but some were revised, delayed or withdrawn in 2025 Energy use has become more efficient around the world since 2000. Global energy intensity has improved by around 30% over the past 25 years, meaning the world uses about 30% less energy per unit of economic output today than it did in 2000, with differentiated trends by key end uses: passenger cars and air conditioners have notably seen efficiency improvements for new sales of 30% and 45%, respectively since 2005. However, the pace of improvement has slowed over…
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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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China’s Official Energy Finance in Emerging and Developing Economies Case 7. Palembang waste-to-energy plant
Project overview and impact Indonesia faces a dual challenge of rapidly growing waste volumes and persistent electricity supply constraints. The country generates around 65 million tonnes of waste annually, yet only about 20% is formally treated, and most cities rely heavily on landfills. In 2017, the government designated 12 priority cities for accelerated waste-to-energy (WTE) development, including Palembang, and introduced preferential feed-in tariffs and guaranteed waste-tipping fees to attract private investment. Despite this, only two WTE plants, Surabaya’s Benowo PLTSa and Surakarta’s Putri Cempo PLTSa, both on Java island, were operational before 2024, highlighting…
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Energy and AI Energy demand from AI
What is a data centre? Artificial intelligence (AI) model training and deployment occur mainly in data centres. Understanding the role of data centres as actors in the energy system first requires an understanding of their component parts. Data centres are facilities used to house servers, storage systems, networking equipment and associated components that are installed in racks and organised into rows. This IT equipment, and a range of auxiliary equipment required to keep it in working order, comprise the following:Servers are computers that process and store data. They can be equipped with central processing units (CPUs) and specialised accelerators…
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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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Global Methane Tracker 2026 Strategies to speed action
…cost-effective at a carbon price of about USD 20 per tonne of carbon dioxide equivalent (tCO2‑eq). Methane abatement has not caught on as widely as it could, for several reasons. Companies may underestimate of the scale of the problem or be unaware of the available solutions. Capital is often steered toward higher-profile projects, while corporate leaders may overstate the costs of cutting methane. Incentives can also be misaligned: equipment owners do not always benefit from fixing methane leaks, contracts may blunt the impact of savings on revenues, and those who own the gas may not recognise its full value…
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Global Energy Review 2026 CO2 emissions
…Emissions in advanced economies increased by 0.5%, while in emerging market and developing economies, growth slowed to 0.3%.Emissions in China declined by around 0.5%, reflecting continued reductions in emissions from both industrial processes and electricity generation. This was mainly driven by a surge in low-emissions generation combined with slower electricity demand growth compared with 2024, and a notable contraction in cement and steel production. However, these effects were partially offset by the chemical industry. In emerging market and developing economies excluding China, emissions increased by 1.1%, significantly below the 2.2% average annual growth…
- Key findings
- Global trends
- Oil
- Natural gas
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+ 9 pages
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World Energy Investment 2025 How we track investment in energy
Tracking energy investment The way investment is measured across the energy spectrum varies, largely because of differences in the availability of data and the nature of expenditures. This document highlights the methodology used to ensure that the estimates are consistent and comparable across sectors in the World Energy Investment 2025 (WEI 2025) report and other publications from the International Energy Agency.The IEA measures investment as the ongoing capital spending on assets. For some sectors, such as power generation, this investment is spread out evenly from the year in which a new plant or upgrade of an existing one takes…