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Fuel report
May 2025
Outlook for Biogas and Biomethane Introduction to biogas and biomethane
Biogas is a mixture of methane, CO2 and small quantities of other gases produced by anaerobic digestion of organic matter in an oxygen-free environment. Its precise composition depends on the type of feedstock and the production pathway. The methane content of biogas typically ranges from 45% to 75% by volume. Biogas is usually produced using the following technologies: Biodigesters: These are airtight systems (e.g. containers or tanks) in which organic material is broken down by naturally occurring micro-organisms. Contaminants and moisture are usually removed before use of the biogas. Landfill gas recovery systems: The decomposition of municipal…
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Contributor
Pablo Hevia-Koch
Head of Renewable Integration and Secure Electricity. Pablo Hevia-Koch is the Head of Renewable Integration and Secure Electricity at the International Energy Agency (IEA). In this role, he oversees work on integration of renewables in power systems, electricity security, power grids, and electricity market design, focused on both emerging and established economies. An electrical engineer by training, he holds a Ph.D. in Energy Economics from the Technical University of Denmark.
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Contributor
Ali Saffar
Head of Division for Europe, Middle East, Africa and Latin America. Ali Al-Saffar is the Middle East and North Africa programme manager at the International Energy Agency, leading the IEA’s engagement with the region and acting as a key advisor to the executive management. Prior to this role, he was an energy analyst at the Directorate for Sustainability, Technology and Outlooks, where he co-authored seven editions of the IEA’s flagship long-term forecast, the World Energy Outlook.
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Flagship report
Nov 2025
World Energy Outlook 2025 Implications of CPS and STEPS
Between continuity and change By 2035, energy demand in the Current Policies Scenario (CPS) is around 35 exajoules (EJ) higher than in the Stated Policies Scenario (STEPS), a difference roughly equivalent to the current annual energy demand of the Middle East. All the extra energy required in the CPS compared to the STEPS comes from oil, natural gas and coal. In the absence of renewed geopolitical disruptions, markets for oil and natural gas appear well supplied in the coming years. But production from existing oil fields declines at a rate of 8% per year, if no investment is made, so it…
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Contributor
Luca Lo Re
International Climate and Energy Analyst. Luca Lo Re leads the IEA work in the OECD/IEA Climate Change Expert Group. With OECD colleagues, he produces papers to enhance the understanding of technical issues in international climate change negotiations and Paris Agreement implementation. In particular, his works focuses on international carbon markets (Art. 6 of the Paris Agreement). He also leads the organisation of the annual IEA-IETA-EPRI GHG Emissions Trading Workshop, and supports various works of the Agency related to Net Zero.
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Report
Oct 2025
Breakthrough Agenda Report 2025 Building
State of the transition Emissions Sectorial CO2 emissions trends have been fairly stable since 2018.Efficiency gains in buildings are improving energy use, but rising ownership of appliances and extreme weather increasingly offset these benefits.Emissions intensity of steel and cement is largely the same as 2020, while global construction activity has slowed in recent years. Cost Investment in building energy efficiency has risen over the past decade, but growth is now stalling, while spending on electrification grows steadily.High-efficiency building envelopes often entail higher upfront costs, constraining uptake in markets without dedicated financial support mechanisms.Strengthening the business…
- Executive summary
- Power
- Hydrogen
- Road transport
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+ 4 pages
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Report
Oct 2025
Breakthrough Agenda Report 2025 Executive summary
The value of international collaboration in the current context Well-targeted international collaboration can amplify domestic efforts to reduce emissions and deploy low-emission technologies and solutions. Acting together, countries, companies and global initiatives are in the unique position to harmonise standards, aggregate demand, mobilise finance and move markets in ways that are nearly impossible to achieve in isolation. Geopolitical tensions and economic uncertainty are testing the resilience of international co-operation, but also underscore its importance to avoid fragmentation of global markets and delaying action on emissions reductions. This report therefore identifies many practical opportunities for countries to work…
- Executive summary
- Power
- Hydrogen
- Road transport
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+ 4 pages
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Report
Nov 2025
Global Energy and Climate Model Net Zero Emissions by 2050 Scenario (NZE)
The International Energy Agency (IEA) was asked by the COP26 Presidency in 2021 to give an indication of what achieving the 1.5 °C goal would mean for the energy sector. Responding to this request, the Net Zero Emissions by 2050 Scenario (NZE Scenario) was developed. It represents a global pathway towards the goal of limiting global warming to 1.5 °C, but not the only possible one. The IEA has always been clear that there are various paths to reach this objective and that each country will have its own route. Since 2021, the IEA has updated its NZE Scenario each year…
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Contributor
Adam Sieminski
President, King Abdullah Petroleum Studies and Research Center. Adam Sieminski became head of the King Abdullah Petroleum Studies and Research Center in Riyadh in April 2018. Prior to his appointment, he held senior roles on energy issues at a range of leading policy and research organisations and also previously served as Administrator of the US Energy Information Administration.