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nuclear•chain

X-energy

X-energy is the nuclear steam supply system vendor for 16 reactor units on record, 0 of them operating, totalling 0.0 GW of gross capacity across 0 countries.

Operating units
0
0.0 GW gross
Under construction
0
Planned
16
Retired
0

Developer of the Xe-100 high-temperature gas reactor and of the TRISO-X fuel facility in Oak Ridge, Tennessee — one of the few Western sources of TRISO fuel. The pairing matters: the Xe-100 needs HALEU, and X-energy is building its own supply of the fuel form rather than relying on the market.

Company
HeadquartersRockville, Maryland, USA
Founded2009
Ownershipprivate
Roles in the chainvendor, fabricator

Position in the chain

Mining Conversion Enrichment Fabrication HALEU Reprocessing

Downstream

Output from this company feeds the stages below it in the chain, and ultimately 419 operating reactors across these types.

Reactor typeOperating units
Pressurised water reactor 311
Boiling water reactor 45
Pressurised heavy water reactor 44
Gas-cooled reactor 9
Light water graphite reactor 7
Fast reactor 2
High-temperature gas reactor 1

Facilities

FacilityStageCountryCapacity / outputStatus
TRISO-X Fuel Facility (TX-1), Oak Ridge triso USA not disclosed construction

What it supplies

ProductForOperating units of that kind
TRISO particle fuel, HALEU enrichment htgr —

Recorded as capability against a reactor type or model line rather than against named units, because utilities do not publish fuel contracts.

Design lines

DesignGenerationCapacityOperatingUnits
Xe-100 IV 80 MWe gross per module — 16

Installed base

UnitCountryStatusModelGross MWOnline
Cascade SMR nuclear power plant 1 United States Pre-construction Xe-100 80 2032
Cascade SMR nuclear power plant 10 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 11 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 12 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 2 United States Pre-construction Xe-100 80 2032
Cascade SMR nuclear power plant 3 United States Pre-construction Xe-100 80 2032
Cascade SMR nuclear power plant 4 United States Pre-construction Xe-100 80 2032
Cascade SMR nuclear power plant 5 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 6 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 7 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 8 United States Announced Xe-100 80 2035
Cascade SMR nuclear power plant 9 United States Announced Xe-100 80 2035
Long Mott nuclear power plant 1 United States Pre-construction Xe-100 80 2033
Long Mott nuclear power plant 2 United States Pre-construction Xe-100 80 2033
Long Mott nuclear power plant 3 United States Pre-construction Xe-100 80 2033
Long Mott nuclear power plant 4 United States Pre-construction Xe-100 80 2033

Sources