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Energy system
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 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…
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Energy system
Coal
Global coal demand to remain on a plateau in 2025 and 2026
Despite unusual trends across several major markets in the first half of 2025, global coal demand is 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…
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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
Solar PV
Solar PV continues to dominate global renewables growth, though at a slower rate
Recent policy changes are expected to affect the pace at which solar PV capacity is added annually through the end of this decade. Even so, low costs, faster permitting and broad social acceptance are set to continue to drive the accelerating adoption of solar PV. As a result, capacity is set to more than double between 2025 and 2030 compared with the 2019 to 2024 period.
A growing share of variable renewable sources such as solar also comes with challenges. Curtailment levels and instances of negative electricity…
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Technology report
May 2025
Global Critical Minerals Outlook 2025 Policy mechanisms for diversified mineral supplies
Increasing cost pressures in operations outside dominant producers pose risks to diversification and sustainability efforts Supply chains for key energy minerals are highly concentrated, creating strong incentives for policymakers to build more secure and resilient supply chains through greater diversification. This concentration is often underpinned by network efforts, lower costs, and, in many cases, by relatively energy- and emissions-intensive processes. Capital expenditures for mining and refining in regions outside the dominant player are typically 50% higher than those within the top producing country. These producers also often face higher all-in sustaining costs, making it difficult to remain profitable…
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Country report
Sep 2023
Financing Clean Energy in Africa Executive summary
A dramatic increase in energy investment into African countries is essential Multiple recent crises have made it increasingly challenging for many African countries to raise financing to support their clean energy ambitions, despite the continent’s huge needs and rich and varied resources. Africa accounts for around 20% of the world’s population but attracts less than 2% of its spending on clean energy. In recent years, African countries have had to deal with a series of overlapping crises, including the Covid-19 pandemic, the energy and food crises following Russia’s invasion of Ukraine and worsening climate risks. Borrowing…
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Contributor
Lisa Davis
Chief Executive Officer, Gas and Power. Lisa Davis has been a Member of the Managing Board of Siemens AG since August 2014. She serves as Chief Executive Officer of the Gas and Power division and is responsible for the company’s Energy business globally. A chemical engineering graduate, she previously worked for Exxon Corp., Texaco and Royal Dutch Shell.