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Contributor
Dr Sarquis José Buainain Sarquis
Ambassador, Delegate of Brazil to the OECD and other economic organisations in Paris. An economist and career diplomat since 1991, Ambassador Sarquis has worked in the fields of economics, finance, international trade, investment, and development. He has also authored papers and taught undergraduate and graduate courses in these fields.He is currently Brazil’s representative to the OECD and other international economic organisations in Paris. Previously, he was Secretary for Foreign Trade and Economic Affairs and G20 Sherpa (2020-2023) and Vice President and Chief Risk Officer at the New Development Bank (2018-2020).Ambassador Sarquis holds a PhD and a MSc in Economics from the London School of Economics and Political Science (LSE) and a BSc in Electronic Engineering from the Polytechnic School of the Federal University of Rio de Janeiro (UFRJ). He is also a graduate of Brazil’s diplomatic academy - Instituto Rio Branco.
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Report
Nov 2025
Global Energy and Climate Model Understanding GEC Model scenarios
Overview The IEA’s medium- to long-term outlook publications – including the World Energy Outlook (WEO) and Energy Technology Perspectives (ETP) – use a scenario approach relying on the Global Energy and Climate (GEC) Model to examine future energy trends.Each scenario has the same starting point and is based on the latest data for energy supply and demand, markets, technology costs and policies, as well as the same pathways for future population and economic growth.The energy system described and explored in each scenario evolves in a distinctive pathway that delivers energy services with a different mix of technologies and…
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Contributor
Tim Gould
Chief Energy Economist. Tim Gould was appointed the Agency's Chief Energy Economist in 2021. As Chief Energy Economist, he provides strategic advice on energy economics across a wide range of IEA activities and analysis. Mr Gould is also Head of the Office of the Chief Energy Economist, in which capacity he co-leads the World Energy Outlook, the IEA's flagship publication series, and oversees the Agency's work on investment and finance, including the World Energy Investment report.Mr Gould joined the IEA in 2008, initially as a specialist on Russian and Caspian energy, and in recent years has designed and directed a wide range of IEA analytical outputs, while continuing to contribute also as an author. Prior to joining the IEA, Mr Gould worked on European and Eurasian energy issues in Brussels and has ten years of experience in Eastern Europe, primarily in Ukraine. He graduated from Oxford University and has a post-graduate diploma from the School of Advanced International Studies of J...
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Flagship report
May 2026
Global EV Outlook 2026 Electric vehicle batteries
Electric vehicle battery deployment Electric vehicle battery deployment grew by almost 30% in 2025 Electric vehicles (EVs) remained the primary source of global battery deployment, accounting for more than 70% of the total in 2025, slightly down from almost 80% in 2024. In 2025, EV battery deployment reached 1.2 TWh, an increase of almost 30% compared to 2024, and more than 7 times greater than in 2020. Light‑duty vehicles remained the dominant segment, representing more than 85% of the 2025 EV battery deployment. However, the fastest growth came from electric trucks, for which battery demand more than doubled – largely thanks…
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Technology report
Nov 2025
What Next for the Global Car Industry Pathways to global EV cost-competitiveness
Highlights The gap in competitiveness in electric car manufacturing between new market-entrants located in China and incumbents in other countries has grown in the past 5 years. Battery electric car production costs are over 30% lower in China than in advanced economies, and around a third of the difference can be attributed to the battery. However, a similar production cost gap exists for conventional cars. Battery cell prices are, on average, over 30% lower in China than in Europe and over 20% lower than in the United States. Reducing the manufacturing cost gap is possible – half is due to efficiency…
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Technology report
Feb 2026
The State of Energy Innovation 2026 Executive summary
Successful energy innovations can have outsize economic and social outcomes, impacting industrial competitiveness, trade, environmental health, infrastructure investment and security. The second edition of the State of Energy Innovation turns the spotlight on the technologies, policies and funders at the forefront of this process. Today, the global markets for energy technologies such as batteries, transformers, turbines, motors and heat exchangers are worth trillions of dollars. With spending on energy representing as much as 10% of global GDP, innovation that reduces energy supply costs can transform a country’s comparative advantage. As a result, the energy sector is innovation-intensive: one…
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Country report
Oct 2025
Ukraine’s Energy Security A pre-winter assessment
Ukraine’s energy sector continues to be a major target of Russian missile and drone attacks As Ukraine enters its fourth winter of the war, energy infrastructure continues to be targeted by Russian attacks. Ukraine’s natural gas and power infrastructure remain vulnerable, with an increasing number of missiles and drones striking critical plants and pipelines. At the same time, evolving tactics and technologies are present a persistent challenge for Ukraine’s air and passive defences.Energy security is central to Ukraine’s overall security. Ensuring that Ukrainian citizens retain access to heat and power is of the utmost importance…
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