China Joins the "Tripling Nuclear Energy Declaration"

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China has officially joined the global nuclear energy expansion pledge, injecting a new heavyweight force into what is so far the world’s most comprehensive multilateral nuclear framework.

On Friday, according to the official WeChat account “Ke Gong Wei Bao” of the State Administration of Science, Technology and Industry for National Defense, on March 10, at the second Nuclear Energy Summit held in Paris, France, China announced its accession to the “Tripling Nuclear Energy Declaration.” Zhang Zhongde, Director of China’s National Atomic Energy Agency, attended the summit’s “Tripling Nuclear Energy Plan” roundtable discussion and officially announced this decision on behalf of China.

The core goal of the “Tripling Nuclear Energy Declaration” is to increase global installed nuclear energy capacity to three times the 2020 level by 2050, helping to achieve global net-zero emissions around the middle of this century and the temperature control targets of the Paris Agreement. With the successive accessions of China, Brazil, Belgium, and other countries, the total number of signatory countries has expanded to 38.

Zhang Zhongde stated that China is willing to work hand in hand with all parties to promote nuclear technology innovation, safety governance, industrial collaboration, and win-win cooperation, and will continue to provide Chinese wisdom, Chinese solutions, and Chinese strength toward realizing the vision and targets of the “Tripling Nuclear Energy Declaration.” China’s accession is seen as an important driving force for the sustainable development of global nuclear energy and the green and low-carbon transformation of energy.

Declaration Goals and China’s Nuclear Power Strength

Jointly initiated by France and 22 other countries, the “Tripling Nuclear Energy Declaration” has a core goal of tripling global installed nuclear energy capacity by 2050 compared to 2020, assisting in reaching net-zero emissions around the middle of this century and the Paris Agreement’s temperature control targets. The declaration puts forward 11 joint actions, covering several areas such as the safe operation of nuclear power, spent fuel management, financing of nuclear energy projects, diversified use of nuclear energy, resilience of the nuclear industry chain supply chain, and life extension of operating nuclear plants.

China’s accession to this declaration is backed by its continuously growing scale advantage in the field of nuclear power. According to China Industry News, currently, mainland China has 112 nuclear power units either in operation or approved for construction, with an installed capacity of 125 million kilowatts, making it the world’s number one nuclear power country. In 2025, China’s nuclear power generation will reach about 480 billion kilowatt-hours, accounting for 4.8% of the country’s total electricity generation. In terms of equipment manufacturing, China has established the world’s most complete nuclear power equipment industrial supply chain system, with a localization rate of key equipment exceeding 90%, an annual capacity for manufacturing 10 sets of major nuclear power equipment, and the ability to undertake construction of 50 units simultaneously.

In terms of policy pace, China’s nuclear power approvals are progressing at a high intensity. From 2022 to 2025, China has approved 10 units each year, with 11 units approved in 2024. Each nuclear power unit involves an investment of about 20 billion yuan, and the total investment for 41 units exceeds 800 billion yuan.

Zeng Yachuan, Director of the Nuclear Power Department of the National Energy Administration, recently wrote that the global nuclear power landscape is undergoing profound changes, with more than 30 countries making the tripling nuclear pledge, the United States putting forward a plan to quadruple its nuclear power, and Germany and other nuclear-abandoning countries gradually adjusting their policies. This has brought new strategic opportunities for China to strengthen international nuclear power exchanges and cooperation and to promote the “going global” of nuclear power.

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