KRONOS MMR
Stationary helium-cooled high-temperature gas-cooled microreactor, 3.5-15 MWe / 10-45 MWth per unit, transportable by road and assembled on site; demonstration planned at the University of Illinois.
Development
Startup · United States
NANO Nuclear Energy
HQ New YorkFounded 2022NASDAQ:NNE
Microreactor developer (KRONOS MMR high-temperature gas-cooled reactor, ZEUS portable solid-core battery reactor, space-capable LOKI MMR) with HALEU fuel fabrication and fuel transportation subsidiaries.
Systems2
ZEUS
Portable solid-core battery microreactor whose core and power conversion system fit in one shipping container.
Development
Newest unveiled first. Open a system for its milestone timeline, components and sources.
Capabilities3
| Technology | Role | Maturity | TRL | Notes | Confidence |
|---|---|---|---|---|---|
| Advanced reactor fuel fabrication | Developer | Concept | — | HALEU Energy Fuel Inc. subsidiary planning a domestic HALEU fuel fabrication pipeline. | Confirmed |
| Microreactors | Developer | Development | — | KRONOS MMR (3.5-15 MWe, NRC construction-permit pre-application) and ZEUS (first core hardware assembled for non-nuclear testing in 2025). | Confirmed |
| Space fission power and propulsion | Developer | Concept | — | NANO Nuclear Space subsidiary exploring ZEUS and LOKI MMR for cis-lunar power and possibly propulsion. | Confirmed |
- DeveloperHALEU Energy Fuel Inc. subsidiary planning a domestic HALEU fuel fabrication pipeline.ConceptConfirmed
- DeveloperKRONOS MMR (3.5-15 MWe, NRC construction-permit pre-application) and ZEUS (first core hardware assembled for non-nuclear testing in 2025).DevelopmentConfirmed
- DeveloperNANO Nuclear Space subsidiary exploring ZEUS and LOKI MMR for cis-lunar power and possibly propulsion.ConceptConfirmed
Maturity and TRL describe this organization's work; the field-wide maturity is on each technology's page.
Sources4
Profile1
- 1DatabaseNANO Nuclear Energy
IPO Scoop · Supports Organization · founded year
“since our founding in 2022”
Systems3
- 2CompanyNANO Nuclear Energy
NANO Nuclear Energy · Supports Organization, Organization · hq city, Organization · ticker, Organization technology, System
“the patented KRONOS MMR™ Energy System, a stationary high-temperature gas-cooled reactor that is in construction permit pre-application with the U.S. Nuclear Regulatory Commission (NRC), ZEUS™, a solid core battery reactor, and the space-capable, portable LOKI MMR™”
- 3
NANO Nuclear Energy · Supports Organization technology, System
“KRONOS MMR™ is designed as a stationary installation capable of producing power up to 45 MWth in a single-unit configuration”
- 4CompanyZEUS | NANO Nuclear Energy
NANO Nuclear Energy · Supports System
“ZEUS™ reactor core and power conversion system fit within a single standard shipping container, facilitating transportation to remote sites.”
Each fact on this page is attached to the sources that support it. Archived copies are linked when we keep one.