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Energy system
Trucks and Buses
…sales and bringing the global stock to approximately 635 000 in total. Several European countries (such as Belgium, Norway and Switzerland) and China achieved sales shares above 50% in 2023, and more than one-fifth of bus sales were electric in Canada, Chile, Finland, the Netherlands, Poland, Portugal and Sweden.
Sales of electric trucks increased 35% in 2023 compared to 2022, meaning that total sales of electric trucks surpassed electric buses for the first time, reaching around 54 000. China is the leading market for electric trucks, accounting for 70% of global sales in 2023, down from 85% in 2022…
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Energy system
Heat Pumps
…China is responsible for nearly 33% of global heat consumption and it is currently the world's largest market for heat pumps for buildings. Electrification through heat pumps can provide a key lever for decarbonising heating, and sales have increased in recent years in China.
This report, prepared in collaboration with Tsinghua University, provides an overview of the status of heat pumps in buildings, industry and district heating in China, and examines potential to further accelerate deployment. Heat pumps can play an important role towards meeting China’s goal of CO2 emissions peaking before 2030 and achieving carbon neutrality before…
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Energy system
Coal
…likely to remain broadly unchanged to 2027 as underlying structural drivers of the world’s coal use remain stable.
Global coal demand increased to a new all-time high in 2024 of around 8.8 billion tonnes, up 1.5% from 2023, as rising consumption in China, India, Indonesia and other emerging economies more than offset declines in advanced economies in Europe, North America and northeast Asia. However, several of those trends reversed in the first half of 2025 as demand declined in China and India; by contrast, coal use grew by around 10% in the United States. Even so…
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Energy system
Nuclear Power
…supply. Now, fresh momentum around the world has the potential to open a new era for nuclear energy.
Power generation from the global fleet of nearly 420 active nuclear reactors is set to reach a record high in 2025 as Japan restarts production, maintenance works are completed in France, and new reactors begin commercial operations in various markets, including China, Europe, India and Korea. Meanwhile, more than 60 nuclear reactors are currently under construction – representing over 70 gigawatts (GW) of capacity – and governments’ interest in nuclear power is at its highest level since the oil crisis in the 1970s, reflecting…
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Energy system
Bioenergy
Led by bioenergy, renewable fuels could approach 6% of energy demand from industry, buildings and transport in 2030
By 2030, renewable fuels are set to account for 5.5% of energy consumption from the industry, building and transport sectors. Demand is due to expand in all regions, but it is concentrated in China, Brazil, Europe, India and the United States, which collectively support more than two-thirds of the forecasted growth. All five countries and regions have dedicated support policies for several – and, in some cases, all – renewable fuels. These vary by fuel, sector and country, but they often include…
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Energy system
Heating
…40%. In particular, sales of air-to-water models, which are compatible with typical radiators and underfloor heating systems, jumped by almost 50% in Europe. In the United States, heat pump purchases exceeded those of gas furnaces, while in China, the world’s largest heat pump market, sales remained stable.
Heat pumps are a proven way to provide secure and sustainable heating
Heat pumps, powered by low-emissions electricity, are the central technology in the global transition to secure and sustainable heating. The Future of Heat Pumps, a special report in the IEA’s World Energy Outlook series, provides an…
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Energy system
Energy Efficiency
…locking in greater levels of wasted energy, as well as higher costs and emissions.
Global progress on energy efficiency picks up in 2025
Global primary energy intensity – the main metric for tracking efficiency progress – is on course to improve by 1.8% in 2025, up from just 1% in 2024. Preliminary estimates indicate that several key economies, such as India and China, are showing some indications of stronger progress compared with their average since 2019.
The rate of global improvement in energy efficiency has been largely lacklustre since 2019, averaging around 1.3% annually. That’s down significantly from the…
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Energy system
Wind
Wind has significant potential to boost growth in global renewable capacity
Electricity generation from renewables is expected to increase by 60% through 2030 – rising from 9 900 terawatt-hours (TWh) in 2024 to 16 200 TWh by the end of the decade. Wind accounts for almost a third of growth, second only to solar PV, which accounts for 60%.
Although wind power continues to face supply chain issues, rising costs and permitting delays today, global capacity is still expected to nearly double to over 2 000 gigawatts (GW) by 2030 as both advanced and developing economies tackle these barriers.
Around…
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Energy system
Electric Vehicles
Global electric car sales continue to break records as affordability improves
Despite recent economic headwinds that have put pressure on the auto sector, global sales of electric cars have continued to break records as electric models become increasingly affordable. Electric car sales exceeded 17 million globally in 2024, reaching a sales share of more than 20%. Just the additional 3.5 million electric cars sold in 2024 compared with the previous year is more than the total number of electric cars sold worldwide in 2020.
In 2025, sales of electric cars are expected to surpass 20 million, accounting for over…
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Energy system
Hydroelectricity
Hydropower is the largest source of renewable energy today, but that could change soon
Hydro is currently the third largest source of power generation worldwide after coal and natural gas. In 2024, it generated around 4 500 terawatt-hours of electricity, or 14% of the global total.
More than 150 gigawatts (GW) of new hydro capacity is set to come online by the end of the decade, mostly in emerging and developing economies. As a result, electricity generation from hydropower is expected to increase by 7% between 2025 and 2030. However, its share in global electricity generation is poised to…