Overview
The annual World Energy Outlook is the International Energy Agency's flagship projection of the global energy system. This dataset surfaces the WEO 2025 Free Dataset (Annex A): historical figures for 2010–2024 and projections to 2050 under the IEA's three core scenarios:
- Current Policies Scenario (CPS) — only policies firmly in place today
- Stated Policies Scenario (STEPS) — announced policy ambitions, implemented or not
- Net Zero Emissions by 2050 Scenario (NZE) — a pathway to net-zero energy-sector CO₂ by 2050
What's included
We curate the indicators most useful for power and energy-system modelling:
- Electricity generation by source (TWh) and installed power capacity (GW), including unabated vs CCUS-equipped fossil fuels and battery storage
- Total energy supply and final consumption by fuel (EJ), with sectoral demand for industry, transport and buildings
- CO₂ emissions by sector and by power-sector fuel (Mt CO₂), and the CO₂ intensity of electricity (gCO₂/kWh)
- Regional supply: total energy supply, CO₂ emissions, and oil, gas and coal production across 20+ WEO regions
Use the Data Explorer tab to chart any indicator across scenarios — each series stitches the historical record onto the selected scenario's trajectory, the same convention the IEA uses in the report itself.
Source and attribution
Data from the World Energy Outlook 2025 Free Dataset, © International Energy Agency (2025), released under CC BY-NC-SA 4.0. Please cite as: International Energy Agency (2025), World Energy Outlook 2025, IEA, Paris. Licence: Creative Commons Attribution CC BY-NC-SA 4.0.
Bayesian Energy is not affiliated with, and does not produce or endorse, this dataset; the figures are reproduced and visualised exactly as published at source, without modification. The licence is non-commercial and share-alike: derived material must carry the same licence, and commercial use of the data requires permission from the IEA (compliance@iea.org). Third-party content within the dataset may carry its own terms.