SMR.INTEL
OKLOAurora+15MW.SMRSMRVOYGR+77MW.NuScaleNNENano Nuclear+Micro.ReactorLTBRLightbridge+Fuel.TechLEUCentrus+HALEU.ProdCCJCameco+Uranium.SupplyUECUranium Energy+U3O8.MiningCEGConstellation+TMI.RestartGEVGE Vernova+BWRX-300BWXBWXT+TRISO.FuelFUND.YTD2025-26$2.5B+.Raised
Terminal/Reactor DB/Antares R1
under constructionhtgr · Helium

Antares R1

Reactor Type
htgr
Electrical Output
1 MWe
Thermal Output
4 MWth
Coolant
Helium
Enrichment
HALEU
Refueling Interval
null
Design Life
null
Passive Safety
Yes
Load Following
Yes
Target LCOE
null
Country
USA
Status
UNDER CONSTRUCTION
About

HTGR microreactor (0.1-1 MWe). Authorized under DOE Reactor Pilot Program. Ground broken, targeting criticality July 2026. $96M Series B raised December 2025.

Antares Nuclear — Funding Summary
Total Funding
$96M Series B (Dec 2025)