Westinghouse’s AP300 reactor enters UK evaluation phase

The UK government authorizes Westinghouse's AP300 to begin the generic design assessment process, reinforcing its nuclear strategy.

Share:

Comprehensive energy news coverage, updated nonstop

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access • Archives included • Professional invoice

OTHER ACCESS OPTIONS

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

FREE ACCOUNT

3 articles offered per month

FREE

*Prices are excluding VAT, which may vary depending on your location or professional status

Since 2021: 35,000 articles • 150+ analyses per week

The UK government has given the green light for Westinghouse’s AP300 to enter the Generic Design Assessment (GDA) process.
This process, crucial for any new reactor wishing to be deployed in the UK, aims to ensure compliance with safety, security and environmental protection standards, in liaison with national regulators.
The AP300, a small modular reactor (SMR), is based on the technological foundations of the AP1000 model, already in use in several countries. The decision to launch this assessment comes at a time when the UK is seeking to increase its nuclear capacity to secure its long-term energy supply.
The government’s approval marks a strategic milestone for Westinghouse, paving the way for the eventual installation of this type of reactor in the UK.

Context and implications for the sector

The evaluation of the AP300 reactor is part of a wider strategy to strengthen the UK’s nuclear capabilities.
The country plans to reach 24 GW of nuclear capacity by 2050, integrating advanced technologies capable of meeting this ambition. Thanks to its modular size, the AP300 offers potential advantages in terms of installation flexibility and operating costs. .
Le processus de GDA, dirigé par l’Office for Nuclear Regulation (ONR) et l’Environment Agency, est une procédure rigoureuse qui pourrait prendre plusieurs années.
Il permettra de déterminer si l’AP300 répond aux exigences strictes imposées par le cadre réglementaire britannique.
L’évaluation portera sur les aspects techniques, sécuritaires et environnementaux, avec une attention particulière aux leçons tirées de la mise en service de l’AP1000.

A project in line with the UK’s energy strategy

Support for the AP300 is part of the UK’s drive to diversify its energy sources while increasing the share of nuclear power in its energy mix.
This decision reflects a strategy aimed at reducing dependence on fossil fuels and securing a stable, predictable energy supply.
The development of SMRs, such as the AP300, is seen as an effective way of achieving these objectives, while adapting to the specific needs of the country’s different regions.
The approval of the AP300 also marks a milestone in the development of nuclear infrastructure in the UK.
The British authorities continue to support innovation in this field, while maintaining rigorous safety standards.
The future siting of these reactors could have a significant impact on the local economy, particularly in terms of job creation and the development of technical skills.

EDF is opening access to its long-term nuclear supply contracts to companies consuming more than 7 GWh per year, an adjustment driven by the gradual end of the Arenh mechanism.
A public-private consortium is developing a 5 MW thermal microreactor designed to operate without refuelling for ten years, marking a strategic step in Brazil's nuclear innovation efforts.
EDF has announced that the Flamanville EPR reactor is now operating at 80% of its capacity. The target of reaching full output by the end of autumn remains confirmed by the utility.
The accelerated approval of the Aurora facility’s nuclear safety plan marks a strategic milestone in rebuilding a domestic nuclear fuel production line in the United States.
The Industrikraft consortium will invest SEK400mn ($42.2mn) to become a shareholder in Videberg Kraft, marking a new phase in Sweden’s nuclear project led by Vattenfall on the Värö Peninsula.
MVM Group has signed an agreement with Westinghouse to secure VVER-440 fuel supplies from 2028, reducing its reliance on Russia and strengthening nuclear cooperation between Budapest and Washington.
The delivery of nuclear fuel by Russian subsidiary TVEL to the Da Lat research reactor marks a key step in strengthening the nuclear commercial partnership between Moscow and Hanoi.
US supplier X-energy has formalised a graphite supply contract with Japan's Toyo Tanso for the construction of its first four small modular reactors, in partnership with Dow and backed by the US Department of Energy.
US-based Enveniam has signed an agreement with LIS Technologies Inc. to oversee the design and construction of a new laser-based uranium enrichment facility on American soil.
Faced with shorter approval timelines, several European nuclear firms, including Newcleo, Orano and Urenco, are considering relocating key industrial investments to the United States.
A consortium led by Swedish giants such as ABB, SSAB and Volvo will invest SEK400mn to support the development of small modular nuclear reactors through a strategic partnership with Vattenfall.
Russia and India are preparing an expanded agreement for the construction of VVER-1200 reactors and modular nuclear power plants, while accelerating work at the strategic Kudankulam site.
Fusion Fuel Cycles has begun work on its UNITY-2 facility, a unique test bench designed to validate the full tritium fuel cycle under fusion conditions, marking a key step toward fusion energy.
Framatome will produce TRISO fuel at Romans-sur-Isère as part of a pilot project for advanced nuclear reactors, in partnership with actors such as Blue Capsule Technology.
Sweden’s parliament has approved a major reform authorising uranium extraction, opening the door to a reassessment of the economic potential of mining projects containing this strategic mineral.
South Africa's regulator has authorised Koeberg Unit 2 to operate until 2045 following maintenance work and a long-term safety assessment.
French nuclear group Orano has confirmed the release of its representative in Niger, detained since May, as tensions remain high with the country’s junta over control of uranium assets.
EDF launches a sovereign digital platform to secure data exchanges between nuclear stakeholders, aiming to accelerate the construction of future EPR2 reactors.
ONE Nuclear Energy publishes a virtual presentation for investors detailing its industrial vision, ahead of its merger with Hennessy Capital Investment Corp. VII expected in the first half of 2026.
A majority of Americans now back nuclear energy, with strong approval for converting coal plants into nuclear sites and increasing public investment in sector technologies.

All the latest energy news, all the time

Annual subscription

8.25€/month*

*billed annually at 99€/year for the first year then 149,00€/year ​

Unlimited access - Archives included - Pro invoice

Monthly subscription

Unlimited access • Archives included

5.2€/month*
then 14.90€ per month thereafter

*Prices shown are exclusive of VAT, which may vary according to your location or professional status.

Since 2021: 30,000 articles - +150 analyses/week.