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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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Country
Brazil
Brazil’s energy policies measure up well against the world’s most urgent energy challenges. Access to electricity across the country is almost universal and renewables meet almost 45% of primary energy demand, making Brazil’s energy sector one of the least carbon-intensive in the world. Total primary energy demand has doubled in Brazil since 1990, led by strong growth in electricity consumption and in demand for transport fuels on the back of robust economic growth and a burgeoning middle class.
Large hydropower plants account for around 80% of domestic electricity generation, making the Brazilian electricity mix one of…- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Country
El Salvador
The National Energy Policy to 2024 of El Salvador guides the national actions on energy, following main principles: ensure high quality level and continuous and affordable energy access, decrease fossil fuel dependency and mitigate environmental and social impacts of energy projects.
- Overview
- Energy mix
- Emissions
- Electricity
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Country report
May 2026
Austria 2026 Executive summary
Austria has one of the most ambitious climate and energy targets in the world; achieving them requires actionable delivery strategies and adequate funding. The country’s commitments to climate neutrality by 2040 – a full decade ahead of the European Union (EU) – and a 100% renewable share in the national annual electricity balance by 2030 are bold. These goals are underpinned by a large hydropower fleet (accounting for around 60% of electricity generation), including 5.6 gigawatts (GW) of pumped hydro storage and a nationwide smart meter roll-out. Austria has the highest share of renewable energy in electricity consumption in the…
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Country
Egypt
Egypt has initiated a number of energy sector reforms, gradually reducing electricity subsidies and introducing feed-in tariffs to promote renewable energy production. The energy sector reforms recently initiated by the country have resulted in a significant increase in investments which have boosted electricity production over the last 5 years and ensured a stable supply across the country.
Egypt also has plans to increase the share of renewables in the electricity mix to 42% by 2035.- Overview
- Energy mix
- Emissions
- Electricity
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Fuel report
Oct 2025
Gas Market Lessons from the 2022-2023 Energy Crisis Impact analysis of the two largest LNG import regions
Europe BackgroundNatural gas is a central element in Europe’s energy landscape, accounting for about one-quarter of primary energy supply and playing a role across virtually all demand sectors. In the run-up to the crisis, the European continent could count on a multitude of gas supply sources: domestic production, pipeline imports and LNG imports. This diversity of sources fostered gas-on-gas competition and a growing reliance on spot-traded supply, notably in LNG. From 2015 to 2021, the share of short-term and spot-traded LNG imports grew from 10% to about 40% – a share that kept…
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Flagship report
Oct 2022
World Energy Outlook 2022 Key findings
Introduction Each energy crisis has echoes of the past, and the acute strains on markets today are drawing comparison with the most severe energy disruptions in modern energy history, most notably the oil shocks of the 1970s. Then, as now, there were strong geopolitical drivers for the rise in prices, which led to high inflation and economic damage. Then, as now, the crises brought to the surface some underlying fragilities and dependencies in the energy system. Then, as now, high prices created strong economic incentives to act, and those incentives were reinforced by considerations of economic and energy security.But…
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Country
Laos
Laos’ 2011 Renewable Energy Development Strategy aims to achieve a renewable energy share of 30% in total energy consumption by 2025. The policy encourages investment in renewables and small power development for self-sufficiency and grid connection.
- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Policy report
Dec 2025
COP28 Tripling Renewable Capacity Pledge 2025: Update
Tracking countries’ ambitions COP28: Tracking the Energy Outcomes Nearly 200 countries made major collective pledges on energy at the COP28 climate summit in Dubai with the aim of keeping the Paris Agreement target of limiting global warming to 1.5 °C within reach. For the first time, governments set key goals to help meet this objective, including tripling global renewable electricity capacity by the end of this decade. In June 2024, the IEA published COP28 Tripling Renewable Capacity Pledge: Tracking countries’ ambitions and identifying policies to bridge the gap, which provided a global stocktake of renewable capacity plans to assess…
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Technology report
Feb 2026
The State of Energy Innovation 2026
The second edition of The State of Energy Innovation turns the spotlight on the technologies, policies and funders at the forefront of energy technology development. It provides a comprehensive assessment of recent progress and emerging challenges in energy technology innovation, drawing on over 150 innovation highlights from 2025 and a survey of practitioners across more than 40 countries. It analyses trends in public and corporate R&D spending, venture capital flows, patenting and policy, as well as providing an update on progress towards the 18 IEA Races to First in energy innovation. This data-driven approach informs policy makers, industry…