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Energy Efficiency 2025 Buildings
How and where is energy used? Total final consumption in 2024 was over 450 EJ and has grown by around 25 EJ since 2019. Buildings account for around 30% of global energy demand and have contributed around 20% of the growth in total demand since 2019. The residential sector makes up about 70% of total energy demand in buildings, while the remaining 30% is used in commercial and public buildings.In advanced economies, most energy in homes is used for space and water heating, together accounting for about 70%. This is followed by the use of electrical appliances, such as refrigerators, televisions…
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Czechia
Czechia has decoupled economic growth from energy consumption since 2009, yet the country’s energy and carbon intensity remain above the IEA average, which highlights the need to make energy efficiency the “first principle” of energy policy. Fossil fuels are still essential building blocks of the energy mix with coal as the single largest fuel for total energy supply and electricity generation. The country is committed to phase-out coal by 2033 and is putting in place a framework for an inclusive transition. Nuclear is the second largest electricity source and the government plans to build new nuclear units at…
- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Light Industry
Country and regional highlights
Important investment programmes are being deployed to push energy efficiency and decarbonisation in light industries
CO2 emissions
While light-industry emissions have declined since 2010, a more rapid decline is needed to get on track with the NZE Scenario
Energy
The share of fossil fuel use is declining, but progress needs to accelerate
Technology deployment
Firms should prioritise technologies for low-emission process heat and increased energy efficiency
Innovation
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Household Energy Affordability
Energy is one of the top expenses for millions of households, making energy affordability an important policy concern for governments. The impacts of the global energy crisis on consumer prices have been significantly felt in household budgets. Despite coming down from their peak in 2022, prices remain elevated compared to pre-crisis levels and households continue to grapple with higher living costs.This report sets out to identify key trends that are shaping the state of energy affordability around the world today. It explores how system drivers and household energy consumption influence the makeup of energy bills and opens a…
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Renewable Integration
Renewable Integration
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Energy Efficiency
11th Annual Global Conference on Energy Efficiency
The International Energy Agency’s 11th Annual Global Conference on Energy Efficiency is being co-hosted by IEA Executive Director Dr Fatih Birol and Canada’s Minister of Energy and Natural Resources Tim Hodgson on 29 and 30 June 2026. Hydro-Québec, a recognised leader in energy efficiency, will also help drive industry engagement at the event.
The 11th edition of the IEA’s landmark event comes at a pivotal moment. Many governments around the world are focused on stronger action on energy efficiency as a key policy priority in order to ensure…
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Biofuels
Country and regional highlights
The United States Inflation Reduction Act makes USD 9.4 billion available for biofuels
Energy
Biofuel demand increased by 6% in 2022, continuing the recent pace of growth
Technology deployment
Biofuel production technology needs to diversify to sustainably take advantage of existing waste and residue feedstocks
Innovation
Technologies that can convert woody feedstocks into biofuels need to be proven at scale in the next few years
Supporting infrastructure
Policy
Investment
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Romania
By 2020, the objective of Romania is to guarantee the efficient operation of its energy system under security conditions. Romania also plans to meet the obligations set by EU in terms of greenhouse gas emissions through its legislative package “Climate changes – renewable energies”.
- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Estonia
Estonia has achieved a notable reduction in greenhouse gas emissions thanks mainly to lowering its reliance on electricity generation from domestic oil shale, an energy rich sedimentary rock. However, oil shale remains the main energy source and imported fossil fuels still plan a major role, especially in transport. Estonia’s forests, which historically offset significant greenhouse gas emissions, have become a net emissions source. Estonia is aiming to accelerate its clean energy transition with a target to cover 100% of annual electricity demand with renewables by 2030 as part of a larger package to achieve climate neutrality by 2050. It…
- Overview
- Energy mix
- Emissions
- Electricity
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+ 5 pages
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Luxembourg 2026 Executive summary
Luxembourg has established ambitious climate and energy objectives, but more targeted policy measures are needed to meet them. Luxembourg’s climate and energy goals are aligned with the European Union (EU) targets for a 55% reduction in greenhouse gas (GHG) emissions by 2030 and a 90% reduction by 2040, and it has legally enshrined net zero emissions by 2050. Despite rapid population and economic growth, energy-related emissions have already fallen by 40% since 2005, reflecting the success of early measures. Public support for climate action is also robust, providing a strong foundation for the next phase of the transition…
