IEA Countries Fuels & technologies Analysis Data Policies About Search User Profile World Energy Outlook The gold standard of energy analysis World Energy Outlook About the WEO Published every year based on objective data and dispassionate analysis, The World Energy Outlook (WEO) provides critical analysis and insights on trends in energy demand and supply, and what they mean for energy security, environmental protection and economic development. The first WEO was published in 1977 and it has been an annual publication since 1998. The detailed projections are generated by the World Energy Model, a large-scale simulation tool, developed at the IEA over a period of more than 20 years that is designed to replicate how energy markets function. It covers the whole energy system, allowing for a range of analytical perspectives from global aggregates to elements of detail, such as the prospects for a particular technology or the outlook for end-user prices in a specific country or region. There is no single story about the future of global energy and no long-term IEA forecast for the energy sector. The WEO uses a scenario-based approach to highlight the key choices, consequences and contingencies that lie ahead, and to illustrate how the course of the energy system might be affected by changing some of the key variables, chief among them the energy policies adopted by governments around the world. The world’s most authoritative source of energy-market analysis and projections Flagship report World Energy Outlook 2021 October 2021 Previous editions All reports circle-arrow Previous slide Next slide Related analysis All analysis on this topic circle-arrow Commentary COP26 climate pledges could help limit global warming to 1.8 °C, but implementing them will be the key By Dr Fatih Birol 4 November 2021 Report World Energy Model Scenario analysis of future energy trends October 2021 Flagship report World Energy Outlook 2021 Commentary What to expect from the new WEO-2021 By Laura Cozzi and Tim Gould 11 October 2021 Commentary The pandemic continues to slow progress towards universal energy access By Laura Cozzi, Gianluca Tonolo and Daniel Wetzel 24 September 2021 Flagship report Net Zero by 2050 A Roadmap for the Global Energy Sector Flagship report The Role of Critical Minerals in Clean Energy Transitions Flagship report India Energy Outlook 2021 World Energy Outlook Special Report News All news circle-arrow World Energy Outlook 2021 shows a new energy economy is emerging – but not yet quickly enough to reach net zero by 2050 Press release — 13 October 2021 India has the opportunity to build a new energy future Press release — 9 February 2021 IEA hosts week of live-streamed events to delve into World Energy Outlook 2020 analysis News — 13 November 2020 World Energy Outlook 2020 shows how the response to the Covid crisis can reshape the future of energy Press release — 13 October 2020 Events All events circle-arrow 22 Oct 2021 14:00—15:00 WEO Week: How can social and economic dimensions be core elements of transitions? Event 21 Oct 2021 14:00—15:00 WEO Week: Sectoral transitions to new energy industries Event 20 Oct 2021 14:00—15:00 WEO Week: Electricity sector transitions: policy and finance Event 19 Oct 2021 14:00—15:00 WEO Week: Energy security in transition: orderly or disorderly? Event The Energy Mix Keep up to date with our latest news and analysis by subscribing to our regular newsletter Subscribe Explore our other newsletters Browse Countries Fuels and technologies Topics Explore Analysis Data and statistics Learn About Areas of work News and events Connect Help centre Contact Jobs arrow-north-east Delegates arrow-north-east Follow twitter facebook linkedin youtube IEA ©IEA 2021 Terms Privacy