World Nuclear Fuel Report: Global Scenarios for Demand and Supply Availability 2025-2040

Updated Wednesday, 17 September 2025

The 22nd edition of the World Nuclear Association's biennial report on the outlook for nuclear power and nuclear fuels. It is the definitive reference source of the world nuclear industry and is available at a price of 1500ドル.

The report can be ordered from our website shop

The positive momentum for nuclear power continues to grow. In addition to climate change mitigation and supporting socio-economic development, there continues to be an increased interest in nuclear power for energy security and sovereignty.

The report considers three scenarios, the Reference Scenario, informed by government and utility targets and objectives, the Lower Scenario, which assumes delays in implementing these plans, and the Upper Scenario, which is underpinned by more favourable conditions, largely reflecting the targets announced in many countries to achieve net-zero carbon emissions, and the acceptance that nuclear power will play an indispensable role in reaching this goal.

From the 398 GWe of nuclear capacity (as of June 2025), the Reference Scenario projects that nuclear capacity will reach 746 GWe by 2040 (up 60 GWe from the 2023 edition), with capacity reaching 966 GWe in the Upper Scenario (up 35 GWe) and 552 GWe in the Lower Scenario (up 66 GWe).

Global reactor requirements for uranium in 2025 are estimated at about 68,920 tU. In the Reference Scenario these are expected to rise to just over 150,000 tU in 2040, with requirements rising to over 204,000 tU in the Upper Scenario and over 107,000 tU in the Lower Scenario by the same date.

This edition of the World Nuclear Fuel Report sees the inclusion of a new chapter on regional primary supply and demand. Geopolitical and geoeconomic factors, beginning notably since the Russia-Ukraine conflict first started in March 2022, have continued to impact both the demand for nuclear energy as well as the supply of uranium, conversion, enrichment and fabrication.

World Nuclear Association Member organisations can download a PDF of the report from the Members website.