Westinghouse Electric Company
Reactor vendor behind the AP1000. It markets the AP300, a 375 MWe single-loop PWR built from AP1000 technology, and eVinci, a heat-pipe microreactor.
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Facts
Source per value- DesignThe company's lead reactor design name(s) as the company or its regulator names them; semicolon-separated when it markets more than one.
- AP300; eVinci 12
- TypeReactor coolant/technology family. Gas-cooled fast is separated from thermal HTGR designs; sodium-cooled includes both fast and thermal-spectrum designs.
- LWR 1
- Size classDerived from published electric output per module: Micro is 20 MWe or less, Small is above 20 and up to 300 MWe, Medium is above 300 MWe. Legacy heat-only classifications use one third of thermal output as an explicit comparison convention, not a claimed electric rating.
- Medium 1
- MWe / module MWeNet (or gross where only gross is published) electric output of one reactor module as the company or its regulator publishes it. Null for heat-only designs.
- 375 1
- MWt / module MWtThermal output of one reactor module as published by the company or its regulator.
- 990 1
- FuelFuel form and enrichment class as published (for example LEU UO2, HALEU TRISO, fuel salt).
- AP1000 fuel technology 1
- Licensing stageFurthest licensing milestone reached with any national regulator: Operating; Construction licensed (construction permit or licence issued); DOE test authorization (a test reactor authorized or built under the US Department of Energy, for example the Reactor Pilot Program or the DOME test bed); Construction under review (construction, site or creation application filed); Design approved (design certification, standard design approval or GDA completed); Design review (formal design review under way, such as UK GDA, CNSC vendor design review or a French safety-options review); Pre-licensing (pre-application engagement only).
- Pre-licensing 5
- RegulatorsNational regulators the company has formally engaged (NRC, CNSC, ONR, ASN, and others), semicolon-separated.
- NRC 5
- Licensing detailThe milestones behind the licensing stage, by regulator, with dates.
- NRC is engaged in pre-application activities for Westinghouse’s AP300 design certification application. eVinci is a separate design with its own NRC pre-application engagement; neither project page is a construction permit. 25
- Latest milestoneDate of the milestone that sets the licensing stage (for example the day a construction permit was issued or an application docketed).
- Not published
- First siteLocation of the first-of-a-kind commercial or demonstration unit, with the owner or host.
- AP300 in operation by the early 2030s (Westinghouse target) 3
- First powerYear the company or its host utility targets for first operation (criticality or commercial operation, as stated) of the first unit. A plan, not a guarantee.
- Not published
- OwnershipPublic (listed shares), Private (venture or privately held), Subsidiary (a unit or joint venture of a larger company) or State-owned.
- Subsidiary 46
- TickerExchange and ticker of the company or its listed parent.
- Not published
- ListedFirst trading day of the company's shares (or its listed parent's current ticker) on the exchange named in Ticker.
- Not published
- FundingHeadline funding: equity raised, public listing, government cost-share awards (DOE ARDP, GAIN, Great British Nuclear and others), with amounts and dates.
- Owned 51% by Brookfield and 49% by Cameco. Signed an $80 billion AP1000 deal with the US government in October 2025. 46
- Data-center dealTrue when the company has a signed, announced agreement (PPA, framework, MOU, investment or capacity reservation) with a hyperscaler or data-center operator.
- Yes 3
- Data-center partnersHyperscalers and data-center operators the company has a signed or announced agreement with, semicolon-separated.
- Data4 3
- Data-center dealsWhat each data-center or hyperscaler agreement covers: partner, type of agreement, capacity and date.
- Data4 selected the AP300 in March 2025 to evaluate deployment at one of its future European data centers (MoU). 3
- HQCountry of the company's headquarters.
- United States 3
- RegionHeadquarters region.
- North America 3
Sources
- Westinghouse: current AP300 data sheet, 375 MWe / 990 MWt accessed 2026-11-11
- Westinghouse: eVinci licensing milestone accessed 2026-11-11
- Westinghouse and Data4 accessed 2026-11-11
- ANS: Westinghouse $80B contract accessed 2026-11-11
- NRC: AP300 pre-application activities accessed 2026-11-11
- Cameco: Westinghouse ownership (49% Cameco, 51% Brookfield) accessed 2026-11-11
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