SUBSCRIBE
PROFILE

X-energy finalizes the safety of its reactors

X-energy announces completion of the key safety system prototype for the Xe-100 advanced nuclear reactors.

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

SUBSCRIBE - 99$/year

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

X-energy announces completion of the key safety system prototype for the Xe-100 advanced nuclear reactors.

The goal of security

X-energy relies on Paragon to build the RPS safety system for Xe-100 nuclear reactors. The RPS prototype uses Paragon’s highly integrated protection system (HIPS). It marks the first use of a Paragon HIPS on a high temperature gas reactor.

The RPS is a set of independent and redundant instrumentation and control components. They allow the nuclear reactor to shut down automatically and safely. In addition, the system developed here also significantly reduces the risk of cyber-attack.

The completion of this security system is a demonstration of the nuclear technology that X-energy is deploying to the market, as CEO J. Clay Sell points out. He also claims that the security system developed with Parangon is more efficient and secure. It is also less expensive than those used by older nuclear power plants.

The next steps

The delivery of the safety prototype for the Xe-100 nuclear reactors represents a major milestone for X-energy. This will allow the company to move forward with its reactor demonstration program with the Ministry of Energy. The Xe-100 operates as a single 80MWe unit and is optimized for a four-unit 320MWe plant.

The government selected the company to receive up to $1.2 billion in federal funding. These funds will be used to develop, license, build and demonstrate an operational power plant based on the Xe-100 by the end of the decade. In addition, X-energy’s proprietary TRISO-X fuel feeds the reactor.

In addition, X-energy and Ares Acquisition Corporation entered into a definitive combination agreement. Thus, X-energy will become a public company in the second quarter of 2023. Its warrants will be listed on the New York Stock Exchange (NYSE).

  • Popular on energynews.pro
Verso Energy awards FEED contract for DEZiR project to Rely for site in Normandy
Global renewable energy investment growth slows to 7.3% in 2024
Kuwait Petroleum Corporation secures record KWD1.5bn loan to support expansion strategy
TotalEnergies and Rubis fined €187.5mn for cartel in Corsica
China increases crude oil stockpiles in October as prices stabilise
South Africa restarts PBMR project with strategic transfer to Necsa
The South African government has officially lifted the PBMR reactor out of inactivity, launching a public investment programme and transferring the strategic nuclear asset from Eskom to Necsa.
France locks in €100bn nuclear programme under state control
The French Court of Auditors values EDF’s grand carénage at over €100bn, while EPR2 reactors already exceed €67–75bn. The State simultaneously directs regulation, financing, and industrial strategy, raising the risk of conflict of interest.
Belarus launches new public investment in a third nuclear reactor
Belarus commits major public investment to add a third reactor at the Ostrovets plant and initiates studies for a second nuclear site to support national energy demand.
Framatome completes second test cycle on next-generation nuclear fuel
Framatome’s accident-tolerant fuel prototype has completed a second 24-month cycle in a commercial nuclear reactor in the United States, paving the way for a third phase of industrial testing.
UK to install three Rolls-Royce small modular reactors at Wylfa nuclear site
The Wylfa site in Wales will host three Rolls-Royce small modular reactors from 2026, marking a strategic investment in the UK’s nuclear expansion.
Flamanville 3 reaches 80% power output ahead of extended 2026 shutdown
EDF confirmed that the Flamanville EPR has reached a major milestone, while planning a nearly year-long shutdown in 2026 for extensive regulatory inspections and key component replacement.
EDF expands access to nuclear contracts in response to regulatory changes
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.
South Korea extends operation of Kori 2 nuclear reactor until 2033
South Korean authorities have approved the continued operation of the Kori 2 reactor for an additional eight years, marking a key milestone in the national nuclear strategy.
Brazil launches BRL50mn microreactor project for 5 MW capacity
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.
Flamanville EPR reaches 80% output as EDF stays on schedule
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.
Oklo secures key approval for upcoming nuclear fuel facility
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.
Industrikraft takes 20% stake in Videberg Kraft to support Ringhals nuclear project
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.
Westinghouse secures $114mn contract to supply fuel to Paks nuclear plant
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.
TVEL resumes nuclear cooperation with Vietnam through new fuel delivery
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.
X-energy signs $40mn agreement with Toyo Tanso for initial Xe-100 reactors
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.
Enveniam appointed lead integrator for LIST Technologies’ laser uranium enrichment project
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.
Newcleo considers shifting €16bn nuclear projects from the UK to the United States
Faced with shorter approval timelines, several European nuclear firms, including Newcleo, Orano and Urenco, are considering relocating key industrial investments to the United States.
Swedish industrial players inject €36.4mn into Vattenfall’s future nuclear reactors
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.
India and Russia strengthen nuclear cooperation with new projects
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 joint venture begins construction of UNITY-2 test facility
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.

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

START - 99$/year

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.