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What are the biggest sources of energy today?
…be found in our Global Energy Review 2026 https://www.iea.org/reports/global-energy-review-2026, which offers a comprehensive annual assessment of key trends across the energy sector.
The report shows that many types of energy met global demand last year. Oil, natural gas and coal continued to play the biggest roles, accounting for almost 80% of total energy supply. Low-emissions sources – renewables and nuclear – accounted for around 20%.
Global energy demand rose by 1.3% in 2025 (a smaller rise than in 2024 but in line with the previous decade’s average). To meet this increase…
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Martin Kueppers
Former Energy Modeller.
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Josephine Tweneboah Koduah
Former Energy Analyst.
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Joerg Husar
Latin America Programme Manager and Senior Advisor for Strategic Global Energy Dialogue.
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CCUS Projects Database
Covers all large-scale CO2 capture, transport, storage, and utilisation projects commissioned or in planning worldwide. The IEA established this dataset as part of its efforts to track advances in carbon capture, utilisation, and storage (CCUS). It covers all CO2 capture, transport, storage, and utilisation projects worldwide that have been commissioned since the 1970s, and have an announced capacity of more than 100 000 t per year (or 1 000 t per year for direct air capture facilities). It includes projects with a clear emissions reduction scope, and excludes CO2 capture for utilisation pathways which bring low climate benefits (e.g. food…
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Gaston Siroit
OEMLAC Director and Technical Advisor to the Executive Secretary of OLADE. Gastón Siroit is an energy and mining specialist with over twenty years of experience across Latin America and the Caribbean. He currently heads the OEMLAC and serves as Technical Advisor to the Executive Secretary of OLADE, leading regional initiatives on energy transition. His work focuses on regulatory frameworks, climate and energy policies, and project implementation for low-carbon development. Previously, he served as Technology Director at Argentina’s Secretariat of Energy and earlier held senior roles within Total and Shell in Europe, Africa, and South America. He holds engineering degrees from ITBA and INSA Toulouse, and a master’s in project management from Mines Paris - PSL (formerly École des Mines de Paris).OLADE serves as the leading intergovernmental platform for energy dialogue and cooperation in Latin America and the Caribbean, fostering integration, knowledge exchange, and investment to acceler...
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Carlos Fernández Alvarez
Senior Energy Analyst.
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Amanda Wilson
Chair of the IEA Committee on Energy Research and Technology.
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Federico Callioni
Energy Efficiency Policy Analyst.
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Arthur Contejean
Former Energy Analyst.
