Calogena

French start-up designing the CAL30, a 30 MW thermal water-cooled reactor that supplies city district-heating networks with heat only.

HQ FR LWRMicroreactor

Verified

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30 MWt↗Per module
2032↗First power target
Design reviewLicensing stage

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.
CAL30 1
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.
Micro 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.
Not published
MWt / module MWtThermal output of one reactor module as published by the company or its regulator.
30 1
FuelFuel form and enrichment class as published (for example LEU UO2, HALEU TRISO, fuel salt).
Not published
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).
Design review 1
RegulatorsNational regulators the company has formally engaged (NRC, CNSC, ONR, ASN, and others), semicolon-separated.
ASNR 1
Licensing detailThe milestones behind the licensing stage, by regulator, with dates.
Request for an ASNR opinion filed 2024-10-31 (amended 2025-06-20); ASNR issued opinion 2026-AV-027 on 2026-05-19; further requests filed through 2026-08-28. 1
Latest milestoneDate of the milestone that sets the licensing stage (for example the day a construction permit was issued or an application docketed).
2026-05-19 1
First siteLocation of the first-of-a-kind commercial or demonstration unit, with the owner or host.
Pierrelatte, France (first commercial reactor) 2
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.
2,032 2
OwnershipPublic (listed shares), Private (venture or privately held), Subsidiary (a unit or joint venture of a larger company) or State-owned.
Private 2
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.
More than €50 million under France 2030; €40 million EU Innovation Fund grant for the first commercial reactor. 23
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.
Not published
Data-center partnersHyperscalers and data-center operators the company has a signed or announced agreement with, semicolon-separated.
Not published
Data-center dealsWhat each data-center or hyperscaler agreement covers: partner, type of agreement, capacity and date.
Not published
HQCountry of the company's headquarters.
France 1
RegionHeadquarters region.
Europe 1

Sources

  1. ASNR: SMR projects accessed 2026-11-11
  2. WNN: Calogena awarded EU funding accessed 2026-11-11
  3. Calogena secures €40 million EU grant accessed 2026-11-11

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