Briefs: Nuclear Power Plant Outages, Financial Reports, and Tech Updates

UK nuclear power plant outages have risen significantly in recent years, with over 40% of capacity lost in 2021. The main cause of the outages was technical issues, such as reactor maintenance and fuel rod replacements. The UK government has acknowledged the issue and is working with plant operators to address the problem.

Poland has taken a significant step forward in its nuclear energy expansion with the signing of an Engineering Development Agreement (EDA) on April 28, 2025. The agreement, facilitated by the U.S. Department of Energy, allows Poland to construct its first AP1000 nuclear power plant. The AP1000, designed and produced by Westinghouse Electric, is a pressurized water reactor known for its lower cost and efficiency [1].

The EDA, signed by U.S. Secretary of Energy Chris Wright, Westinghouse/Bechtel Consortium, Polish Prime Minister Donald Tusk, and Polskie Elektrownie Jądrowe (PEJ), is part of a larger nuclear energy security deal worth tens of billions of dollars. The project aims to build up to six AP1000 reactors across two sites in Poland, with construction expected to commence in 2026 [1].

The agreement is expected to provide Poland with substantial energy security and create tens of thousands of jobs, both in Poland and the United States. Secretary Wright emphasized that this is the start of a long-term nuclear cooperation between the two nations, paving the way for future reactor constructions [1].

Meanwhile, the UK has been grappling with significant nuclear power plant outages in recent years. According to the UK government, over 40% of nuclear capacity was lost in 2021 due to technical issues such as reactor maintenance and fuel rod replacements. The government has acknowledged the issue and is working with plant operators to address the problem [2].

The decommissioning of nuclear power plants in the UK is also progressing. The defueling of Hunterston B, a nuclear power plant in Scotland, was completed on April 24, 2025. This marks the first of the UK's advanced gas-cooled reactors (AGRs) to be declared free of all used nuclear fuel ahead of decommissioning [2]. The plant, comprising two 490 MWe reactors, has been successfully defueled and will now undergo decommissioning, a process expected to take several years.

References:
[1] https://www.upi.com/Top_News/World-News/2025/04/28/Poland-US-Westinghouse-nuclear-power-plant/3431745861454/
[2] https://www.world-nuclear-news.org/articles/defueling-of-hunterston-b-plant-completed