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Capability profile
LEUNR is CSMC's former microreactor concept, retired in the September 9, 2026 launch of POLAR-1, ORCA-1 and JAY-1. It remains relevant as the named subject of earlier development awards; historical project specifications and readiness targets should not be transferred automatically to the new platforms.
These describe the reviewed application scope, not confirmed deployments, released requirements or procurement eligibility.
CSA agreement 25STDPX13 sought to move LEUNR from TRL 4/5 conceptual design toward TRL 6 detailed design by August 31, 2027. CSMC retired the concept in September 2026; this target is historical, not demonstrated readiness of a successor.
Retired concept; the new platform launch does not establish delivery of a commercial LEUNR reactor.
A technology readiness level is not established by the reviewed public sources.
Historical enabling-power assessment for the retired LEUNR concept: If successfully demonstrated and deployed, LEUNR could provide persistent power for remote sensors, communications and edge-computing infrastructure where conventional logistics are constrained. This is not a current deployment claim or a match assigned to POLAR-1.
Historical enabling-power assessment for the retired LEUNR concept: LEUNR's stated Arctic and remote-power posture could enable sustained operation of northern sensing and communications sites, although the reactor itself is an enabling power system rather than an awareness sensor. This is not a current deployment claim or a match assigned to POLAR-1.
LEUNR Micro-Nuclear Reactor may help teams working on Dual-use northern infrastructure and partnerships by contributing to Arctic and northern operations, energy and power resilience, and protection and survivability.
These records support this capability and its published Mission area and Defence need connections. A source count is not a count of independent confirmations.
Canadian Space Agency · Jul 31, 2025
Source type: official report
Supports: Capability · defence applications
CSA funds LEUNR development as a space micro modular reactor intended for future lunar surface power.
Supports: Capability · technical tags
CSA describes representative unfuelled analogue testing.
Supports: Capability · maturity
CSA places LEUNR at TRL 4/5 conceptual design and targets TRL 6 detailed design by 2027-08-31; ERA separately describes active unfuelled-prototype development.
Supports: Capability · technicaldomainslugs
Retain aerospace and mobility as a derived domain because the CSA program frames LEUNR for space applications.
Supports: Capability · summary
Public program evidence supports representative unfuelled analogue work and detailed-design objectives for LEUNR, not a licensed, fueled or deployed reactor.
Supports: Capability · core features
CSA agreement 25STDPX13 funds representative unfuelled analogue testing toward TRL 6 detailed design.
CSMC · Sep 9, 2026
Source type: official company news
Supports: Capability · summary
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Capability · maturity
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Canadian Space Agency
Source type: award or contract
Supports: Capability · technical tags
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Capability · maturity
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Capability · core features
Telesat · May 26, 2026
Source type: official company news
Supports: Capability · core features
The Telesat MOU covers planned Lightspeed-supported monitoring, operation and sustainment of CSMC reactor systems.
Supports: Capability · technical tags
Telesat describes planned secure remote monitoring and operation connectivity.
NGen · Apr 20, 2026
Source type: innovation program
Supports: Capability · technicaldomainslugs
Retain advanced manufacturing and integration as a derived domain because NGen funds manufacturing-process development and partner integration.
Public sources cited · Facts and assessments kept separate · Human review
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This is a reviewed public-source assessment. It is not procurement eligibility, endorsement, customer interest, or classified demand.
Supports: Capability · commercial availability
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Capability · capability type
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Capability · technology readiness level
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Capability · name
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Edge Data Processing
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Edge Data Processing
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Edge Data Processing
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Edge Data Processing
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Arctic Domain Awareness
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Arctic Domain Awareness
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Arctic Domain Awareness
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
Supports: Mission area · Arctic Domain Awareness
On September 9, 2026 CSMC introduced POLAR-1, JAY-1 and ORCA-1 and explicitly retired its former LEUNR concept. POLAR-1 targets criticality by 2028 and fleet deployments beginning in 2030; the platforms address terrestrial, research and lunar applications.
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Capability · technicaldomainslugs
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Capability · technical tags
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Capability · defence applications
CSA agreement 25STDPX13 provides CAD 1 million from July 31, 2025 to August 31, 2027 for LEUNR representative unfuelled testing and progression from TRL 4/5 conceptual design toward TRL 6 detailed design.
Supports: Mission area · Edge Data Processing
Retain Edge Data Processing as a reviewed derived connection through the possible power and connectivity role for remote infrastructure.
Supports: Mission area · Edge Data Processing
Our assessment retains the conditional edge-infrastructure connection only if LEUNR is successfully demonstrated and deployed.
Canadian Strategic Missions Corporation
Source type: official organization profile
Supports: Capability · name
CSMC expands LEUNR as Low Enriched Uranium Nuclear Reactor.
Supports: Capability · summary
CSMC describes LEUNR as an adaptation of Canadian research-reactor technology for portable remote and commercial power, with a company target to demonstrate the system by 2029.
Supports: Defence need · Dual-use northern infrastructure and partnerships
CSMC describes LEUNR as an adaptation of Canadian research-reactor technology for portable remote and commercial power, with a company target to demonstrate the system by 2029.
The Canadian Explorers; attributed Daniel Sax interview · Aug 27, 2026
Source type: reputable industry publication
Supports: Capability · commercial availability
Daniel Sax described 2028 criticality and 2029-2030 Arctic deployment as company goals, while no reviewed public source establishes a licence, site, fueled test, order or deployment.
National Defence · Apr 3, 2025
Source type: official report
Supports: Capability · defence applications
DND's LEUNR project is framed around scalable energy solutions for current and future Arctic operations.
Supports: Mission area · Arctic Domain Awareness
Our assessment retains the bounded Arctic power-enabler connection and does not recast LEUNR as an awareness sensor.
Supports: Mission area · Arctic Domain Awareness
Retain Arctic Domain Awareness as a reviewed derived connection through the power-enabling role for northern sensing and communications.
Emissions Reduction Alberta
Source type: innovation program
Supports: Capability · defence applications
ERA's project includes stakeholder familiarization and a design package for a future fueled research reactor and facility.
Supports: Capability · technicaldomainslugs
Retain test, training and sustainment as a derived domain because ERA describes an unfuelled prototype and stakeholder-familiarization program.
OECD Nuclear Energy Agency · Sep 1, 2025
Source type: official report
Supports: Capability · core features
The 2025 OECD-NEA profile records a historical 0.1 MWth pressurized light-water basis with a 130 C core outlet.
Supports: Capability · technical tags
OECD-NEA records U-235 enrichment at at least 10 percent and below 20 percent.
Supports: Capability · technical tags
OECD-NEA records a pressurized light-water reactor basis.
Supports: Capability · core features
The OECD-NEA profile records uranium-oxide ceramic CERMET fuel at at least 10 percent and below 20 percent U-235 enrichment.
Supports: Capability · technical tags
OECD-NEA categorizes LEUNR as a microreactor.
Supports: Capability · capability type
OECD-NEA classifies LEUNR as a pressurized light-water microreactor for Earth and space applications.
FedDev Ontario · Jul 23, 2026
Source type: award or contract
Supports: Capability · defence applications
FedDev identifies remote-energy applications alongside Arctic defence operations.
Government of Canada Open Government · Aug 1, 2025
Source type: award or contract
Supports: Capability · core features
The NRC project targets an unfuelled instrumentation-and-controls prototype, while CSMC's DND work also describes safety monitoring and thermal-hydraulics experimentation.
Canadian Strategic Missions Corporation
Source type: official company product
Supports: Mission area · Edge Data Processing
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Edge Data Processing
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Edge Data Processing
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Edge Data Processing
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Arctic Domain Awareness
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Arctic Domain Awareness
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Arctic Domain Awareness
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
Supports: Mission area · Arctic Domain Awareness
CSMC assigns POLAR-1 to terrestrial megawatt-scale electricity and heat with military-aircraft transportability, remote monitoring and long service intervals; ORCA-1 to research, testing and workforce training; JAY-1 to autonomous long-duration lunar power with intended lander integration. These are design descriptions, not demonstrated capabilities.
National Defence · Mar 13, 2026
Source type: government service page
Supports: Defence need · Dual-use northern infrastructure and partnerships
The program describes collaboration with governments, Indigenous partners, communities, academia, industry, and allies, plus roads, runways, seaports, medical capacity, power generation, employment, training, and procurement benefits where feasible.
Department of National Defence · Mar 1, 2026
Source type: official policy
Supports: Defence need · Dual-use northern infrastructure and partnerships
The strategy states that northern infrastructure is stretched and insufficient for the scale and complexity of military, industrial, and civilian activity and requires climate-resilient, strategically located, dual-use investment.
