China's Nuclear Surge: Global Generation Record and Market Implications

In 2025, global nuclear power generation hit an all‑time high, reaching 2.845 TWh.

The Global Production Landscape

■The 2025 total marked a 1.3% increase over 2024.

■Over the 19‑year span from 2006 to 2025, growth was only 1.5%.

■Nuclear's share of total energy supply slipped to 5.17% (down from 5.19% the previous year).

China's Solo Expansion

■China produced 485 TWh, accounting for 17.1% of global output and ranking second worldwide.

■Between 2015 and 2025, Chinese nuclear generation surged 184%, climbing from 171 TWh to 485 TWh.

■The net increase of 34 TWh represented more than the entire global gain.

■Without China, 2025 global nuclear generation would have declined by 44 TWh.

United States and Other Market Stances

■The United States remains the leader with 826 TWh, or 29% of the world total.

■U.S. output has been virtually flat, moving from 839 TWh in 2015 to 826 TWh in 2025.

■France generated 390 TWh (13.7% of global output), adding 9.6 TWh in 2025.

■Japan produced 94 TWh (3.3% share), an 11.1% rise but still far below pre‑Fukushima levels.

■Europe’s nuclear generation fell 22%, while the Asia‑Pacific region surged 101%, now supplying 30% of worldwide nuclear electricity.

Regional Trends and Forward Outlook

■Asia‑Pacific output grew from 420 TWh in 2015 to 845 TWh in 2025.

■OECD nations saw a decline of 96 TWh, whereas non‑OECD countries added 366 TWh.

■At an average annual growth rate of ~11%, China is on track to overtake the U.S. as the top nuclear producer within roughly five years.

■While nuclear’s share of total energy supply remains static, rapid expansion of renewables and fossil fuels intensifies competitive pressure.

Gökberk Uçar – The global nuclear market has become a single‑country‑driven statistic, with China’s aggressive capacity additions reshaping the landscape. The United States and Europe face aging reactor fleets and sluggish new‑build pipelines, exposing long‑term supply‑side risks. China’s continued growth will steer both equipment supply chains (light‑alloy steel, high‑precision sensors) and international financing flows. Investors tracking China‑centric suppliers and long‑term PPAs may redefine risk‑reward calculations. The steady 5% share of nuclear in the overall energy mix underscores that policy support and cost competitiveness remain essential for sustainable expansion.