China Invests Billions in New Large Nuclear Reactors

In 2025 alone, China began construction on six new nuclear reactors, adding to an already staggering pipeline.

AT
Dr. Aris Thorne

June 11, 2026 · 4 min read

Cinematic view of China's massive new nuclear reactor construction sites, showcasing advanced technology and immense scale in energy production.

In 2025 alone, China began construction on six new nuclear reactors, adding to an already staggering pipeline. This pipeline includes 36 reactors currently under construction, representing nearly half of all global reactor projects, according to SolarQuarter. The nation also launched two additional projects, Xuwei-1 and Taipingling-4, in early 2026, further accelerating its nuclear energy program. This aggressive build-out signifies a substantial commitment to energy infrastructure expansion, positioning China as a primary driver of global nuclear energy growth.

However, China's extensive nuclear construction contrasts sharply with its current energy reliance. While the nation is building nearly half of the world's nuclear reactors, nuclear power accounted for only 5% of its total electricity generation in 2023, according to world-nuclear. A long-term strategic investment rather than an immediate energy crisis response is highlighted by this discrepancy.

China is poised to become the undisputed global leader in nuclear energy capacity, fundamentally altering its energy mix and potentially influencing international energy policy and technology standards. This strategic expansion aims for both future energy independence and technological export dominance.

What is China's Nuclear Reactor Investment in 2026?

  • China initiated construction on six new nuclear reactors in 2025 and launched two additional projects, Xuwei-1 and Taipingling-4, in early 2026, according to SolarQuarter.
  • The nation currently has 36 nuclear reactors under construction, which constitutes nearly half of all reactors being built globally, according to SolarQuarter.
  • As of May 2026, China operates 60 reactors across 18 sites, with a combined installed capacity of 58.7 GW, according to SolarQuarter.
  • By the close of 2025, China's operational nuclear capacity reached approximately 62 GWe, according to world-nuclear, with an additional 43 GWe under construction, according to world-nuclear.
  • Nuclear power contributed 5% (435 TWh) to China's total electricity generation in 2023, according to world-nuclear.
  • China expects its first operational small modular reactor, the Linglong-1, to begin sending power to the grid this year, according to MIT Technology Review.

How is China Expanding its Nuclear Power Capacity?

China's nuclear construction pace reached a new level in 2025, with six new reactors starting construction. This rapid expansion continued into early 2026, as the nation launched two additional projects, Xuwei-1 and Taipingling-4, according to SolarQuarter. An unparalleled commitment to scaling nuclear energy infrastructure is demonstrated by this sustained initiation of new builds.

The total volume of these projects is substantial, with 36 nuclear reactors currently under construction across China, according to SolarQuarter. This figure accounts for nearly half of all reactors being built globally, solidifying China's position as the primary driver of worldwide nuclear energy growth. A deliberate strategy to expand energy infrastructure and assert global leadership in nuclear technology is signaled by this aggressive build-out.

By the end of 2025, China's operational nuclear capacity reached approximately 62 GWe, with a further 43 GWe under construction, according to world-nuclear. China is set to nearly double its operational nuclear capacity in the coming years. Based on SolarQuarter's data showing 36 reactors under construction, China is not merely expanding its energy mix; it is strategically positioning itself to become the undisputed global leader in nuclear power technology and deployment, potentially reshaping future energy geopolitics.

Nuclear's Evolving Role in China's Energy Landscape

As of May 2026, China operates 60 nuclear reactors across 18 sites, with a combined installed capacity of 58.7 GW, according to SolarQuarter. Despite this significant operational fleet and ongoing construction, nuclear power constituted only 5% (435 TWh) of China's total electricity generation in 2023, according to world-nuclear. That China's aggressive nuclear build-out is a long-game play, prioritizing future energy independence and technological export dominance over immediate grid demands is underscored by this relatively modest contribution.

Beyond large-scale reactor projects, China is also advancing small modular reactor (SMR) technology. The nation expects its first operational SMR, the Linglong-1, to begin sending power to the grid this year, according to MIT Technology Review. China is pursuing a dual-track strategy, combining rapid, large-scale capacity deployment with innovation in advanced small modular reactor technology. This approach aims for both high volume and advanced technological leadership in the nuclear sector.

The world-nuclear data revealing nuclear accounts for only 5% of China's current electricity generation suggests that Beijing's aggressive nuclear build-out prioritizes future energy independence. This long-term strategy positions China for significant growth in its energy mix, even as nuclear remains a marginal contributor in the immediate term. The dual focus on large reactors and SMRs further solidifies this goal.

What are China's Nuclear Power Goals for 2026 and Beyond?

China's aggressive nuclear expansion indicates a sustained commitment to its long-term energy strategy. With 43 GWe currently under construction, in addition to its operational capacity of 58.7 GW as of May 2026, China is poised to nearly double its existing nuclear power generation capability, according to SolarQuarter and world-nuclear data. This trajectory far outpaces other nations in the scale and speed of nuclear energy deployment, reinforcing China's ambition for global leadership.

This expansion positions China not only for greater energy security but also for asserting technological dominance. The dual strategy of building large reactors for rapid capacity expansion and developing advanced small modular reactors like the Linglong-1, expected to be operational this year, according to MIT Technology Review, suggests a comprehensive approach. China aims to lead in both volume of deployment and innovation in future nuclear technologies.

The sheer volume of new construction projects, including the six new reactors started in 2025 and two additional projects in early 2026, according to SolarQuarter, solidifies China's position as the primary driver of global nuclear energy growth. This sustained pace suggests a future where China's nuclear technology and operational expertise could become a significant export, influencing international energy markets and technology standards.