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Xe-100

The Xe-100 is a Generation IV high-temperature gas reactor from X-energy. 0 units are operating and 0 are under construction, out of 16 on record.

Operating
0
—
Under construction
0
Planned
16
Cancelled
0
0 retired

A helium-cooled pebble bed reactor delivering 200 MW of heat at 750 °C, aimed at industrial process heat as much as electricity. Four units are planned with Dow at Seadrift, Texas. It runs on TRISO pebbles at HALEU enrichment, which is why X-energy is building its own fuel facility rather than buying on the market.

Design
VendorX-energy
Reactor typeHigh-temperature gas reactor (HTGR)
GenerationIV
Capacity range80 MWe gross per module
CoolantHelium
Typical enrichment8–20% U-235, frequently HALEU
Where it is built
United States 16 units

All Xe-100 units

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

Sources