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Electrolysers
Country and regional highlights
Progress is spread across different continents, from China, which leads on installed capacity, to the European Union, which have adopted important policies, and other regions like India and the Middle East moving forward with a small number of large-scale projects
Technology deployment
Global installed electrolyser capacity reached 1.4 GW at the end of 2023, almost double the one at the end of 2022
Technology manufacturing
Innovation
Policy
Investment
Acknowledgements
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Energy Efficiency in China’s Buildings Sector
Policy opportunities Over the past two decades, China has made significant strides in energy efficiency, with strong reductions in primary energy intensity across the economy and increased energy services. Much of China’s improvement has come from energy efficiency upgrades in industry and overall economic structural shifts. The buildings sector accounts for approximately 20% of its total final energy consumption and its intensity has decreased at a slower rate. There remains significant potential to unlock further energy savings through technical and policy initiatives in buildings.This report outlines opportunities for actions, targets and timelines that could improve energy efficiency in…
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Emission reductions
Multiple benefits of Energy Efficiency 2025 Energy efficiency provides multiple benefits. This page explores emission reductions. Why is energy efficiency important for emission reductions? Energy efficiency can reduce emissions of greenhouse gases and air pollutants and make the energy system more sustainable. Key facts Since 2010, efficiency measures avoided energy-related carbon dioxide (CO₂) emissions equivalent to nearly 20% of the global total in 2023. This is more than the entire energy-related emissions of India and the European Union combined. Accelerating efficiency improvements could deliver a third of all energy-related CO₂ emission reductions between now and 2030 in…
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The Implications of Oil and Gas Field Decline Rates
Much attention today focuses on uncertainties affecting the future evolution of oil and natural gas demand, with less consideration given to how the supply picture could develop. However, understanding decline rates – the annual rate at which production declines from existing oil and gas fields – is crucial for assessing the outlook for oil and gas supply and, by extension, for market balances.The International Energy Agency (IEA) has long examined this issue, and a detailed understanding of decline rates is at the heart of IEA modelling and analysis, underpinning the insights provided by the scenarios in the World Energy Outlook.This new…
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Businesses see competitive value of energy efficiency, but smaller firms struggle to access solutions
CEOs value energy efficiency, but SMEs struggle to benefit Energy efficiency is a strategic asset for industrial competitiveness. For companies facing tight margins, volatile energy prices and intensifying global competition, reducing energy waste is not only a cost-saving measure, but also a way to protect productivity, manage risk and strengthen their position in global markets. Yet not all firms have the same capacity to quickly improve their energy efficiency.New analysis of the 2025 IEA Industrial Competitiveness Survey – which covered 1 000 companies across 14 countries – shows that business leaders view energy efficiency as closely linked to their competitive performance…
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Global EV Outlook 2025 Trends in heavy-duty electric vehicles
Electric bus and truck sales The electric bus market continued to expand, backed by increasingly favourable economics Electric bus sales grew by 30% in 2024Global sales of electric buses reached more than 70 000 in 2024, driven by renewed growth in China. Sales outside of China increased by just 5% in 2024, although they have almost tripled compared to 2020. As electric bus sales have increased in a range of countries, China’s share of global sales has fallen from around 99% in 2017 to less than 70% in 2024. Although electric bus sales in China generally declined from 2017 to…
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Renewables 2025 Renewable electricity
Renewable electricity additions for 2025-2030 total 4 600 GW – equal to the combined installed power capacity of China, the European Union and Japan Globally, renewable power capacity is projected to increase almost 4 600 GW between 2025 and 2030 – double the deployment of the previous five years (2019-2024). Growth in utility-scale and distributed solar PV more than doubles, representing nearly 80% of worldwide renewable electricity capacity expansion. Low module costs, relatively efficient permitting processes and broad social acceptance drive the acceleration in solar PV adoption.Distributed solar PV applications (residential, commercial, industrial and off-grid projects) account for 42…
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Renewables in District Energy
This report examines how renewables can play a larger role in district energy systems, helping to deliver cleaner, more secure and more efficient heating and cooling. District energy networks already supply heat to around 600 million people worldwide, but many systems remain heavily dependent on fossil fuels, exposing consumers and utilities to price volatility, supply risks and high emissions.The report provides a global overview of district energy systems, their fuel mixes, market conditions, governance models and affordability implications. It explores the growing opportunities offered by renewable and recovered heat sources, including bioenergy, geothermal, solar thermal, waste heat, large-scale heat…
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Miguel G. Torreira
Global Utilities Strategy Lead, Accenture.
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Global Hydrogen Review 2026 Africa
Hydrogen use in Africa reached 3.1 Mt in 2024, about 3% of the global total. Hydrogen production accounted for about 6% of the region’s gas demand and 2% of regional CO2 emissions. Hydrogen use is concentrated in 6 countries (out of 54), with Egypt representing nearly half, followed by Algeria (20%), Nigeria (17%), South Africa (5%), Libya (5%) and Equatorial Guinea (3%). Ammonia production accounted for nearly three-quarters of hydrogen demand.Today, only 6 kt of low-emissions hydrogen are produced in Africa, exclusively from renewables. The hydrogen project pipeline to 2030 has 31 projects, which could allow increasing…
