Nuclear Energy

Global nuclear reactor construction starts and duration, 1949-2023

September 3, 2024

The construction of new nuclear power plants reflects changing electricity demand and technology competitiveness. Despite industry and government support, nuclear power faces challenges such as cost-competitiveness and safety concerns, leading to extended construction times. While some advocate for its expansion as vital for clean energy transition, others question its necessity due to declining global electricity share and the rise of cheaper renewables.

The aging of the world’s nuclear reactors

July 29, 2024

The construction of nuclear reactors peaked in the 1970s, leading to an aging global reactor fleet. The push to relicense these aging reactors has economic and energy security benefits, but questions remain about safety. More data and transparency are needed for informed decision-making in the face of the world’s aging nuclear fleet.

What is nuclear power uprating and why is it important?

February 19, 2024

Nuclear power in the US has steadily contributed 19% of electricity since 1990, mainly through uprates. These uprates, approved by the NRC, have boosted capacity by 24,080 MWt or 8030 MWe, equivalent to over 7 new plant units. Most uprates range from 0-5%.

Watch the history of nuclear power in the U.S.

October 30, 2023

In 2022, the U.S. had 92 nuclear power plants generating 18% of total electricity. The industry, once a major player, declined due to high costs, long construction timelines, decreased demand, accidents, regulations, and market deregulation. There’s renewed interest in nuclear power to combat climate change, with the first new plant in 30 years, though debates continue on cost, safety, and alternative energy sources.

Explore the world history of nuclear reactors, 1951-2022

April 24, 2023

Explore the global history of nuclear reactors from 1951 to 2022. This visualization showcases 626 operational reactors, highlighting the dominance of pressurized light water reactors (PWRs). Different reactor types exhibit geographic patterns, with retired reactors and ongoing upgrades observed in various countries. The average age of reactors in the United States was 41 years in 2021.

Global nuclear reactor construction starts and duration, 1949-2023

The aging of the world’s nuclear reactors

What is nuclear power uprating and why is it important?

Watch the history of nuclear power in the U.S.

Explore the world history of nuclear reactors, 1951-2022

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