The World Nuclear Association (WNA) announced at the CERAWeek 2025 energy conference in Houston that several major countries and energy-intensive companies have pledged their support for a goal of tripling global nuclear capacity by 2050. This initiative underscores the growing importance of nuclear energy in ensuring energy security and furthering sustainability goals.
Key technology companies, including Google, Amazon, and Meta Platforms, have joined the pledge. Tech firms have already been investing in exploring nuclear energy. Amazon signed three agreements in October 2024 to develop small modular reactor (SMR) technology. Days prior, Google finalized the first-ever corporate agreement to purchase power from multiple small modular nuclear reactors. Microsoft entered a nuclear fusion power deal with Helion Energy in May 2023.
The cross-sector pledge aims to highlight nuclear energy’s vital role in boosting energy resilience, strengthening security, and generating continual clean energy. Aside from Google, Amazon, and Meta, the initiative boasts support from 14 influential global banks and financial institutions, alongside 140 nuclear industry companies and 31 countries, including Canada, France, Japan, the Netherlands, the UK, and the United States.
“Today, a cross-industry group of large energy users signed a pledge supporting the goal of at least tripling global nuclear capacity by 2050,” the WNA stated. “This represents the first time major businesses beyond the nuclear sector have united to publicly endorse a broad expansion of nuclear power to meet the rising global energy demand. They are also urging other energy users to endorse the goal of tripling nuclear energy.”
Facilitated by the World Nuclear Association, this collective call brings together global companies that recognize their need for nuclear energy to power their future growth and meet goals of enhanced energy resiliency.
“We are proud to sign a pledge in support of tripling nuclear capacity by 2050, as nuclear power will be pivotal in building a reliable, secure, and sustainable energy future,” stated Lucia Tian, Head of Clean Energy & Decarbonization Technologies for Google. “Google will continue to work alongside our partners to accelerate the commercialization of advanced nuclear technologies that can provide the around-the-clock clean energy necessary to meet growing electricity demand around the world.”
Brandon Oyer, Head of Americas Energy and Water for Amazon Web Service, commented, “Accelerating nuclear energy development will be critical to strengthening our nation’s security, meeting future energy demands, and addressing climate change. Amazon supports the World Nuclear Association’s pledge, and is proud to have invested more than $1 billion over the last year in nuclear energy projects and technologies, which is part of our broader Climate Pledge commitment to be net-zero carbon by 2040.”
Sama Bilbao y Leon, Director General of the World Nuclear Association, which spearheaded the Pledge initiative, added, “The unprecedented support announced today by some of the world’s most influential companies to at least triple global nuclear capacity by 2050 sends a clear signal to accelerate policy, finance and regulatory changes that enable the rapid expansion of nuclear power.”
The WNA indicates that this pledge is anticipated to garner more support from sectors such as maritime, aviation, and oil and gas in the coming months. Nuclear energy presently generates 9 percent of the world’s electricity via 439 reactors; as of early 2025, there were 411 operational nuclear power reactors globally, with a total capacity of 371 gigawatts.
