Power generation & thermal rejection

Packet identity

Packet ID

systems:power-thermal

Packet SHA-256 identity

2ace0b0ae51ecd37d7f2c01ba0b627b453eb49b19c9b58984dad1f8c21c59f1a

Corpus SHA-256 identity

8fa944604ca189f5a9216ca59f640ad2ca20972ad512f2f4970764716782e18d

Release ID

public-alpha-2026-07-26-research-visuals-r14

Source commit

3eb036fce3d711336c8c605625895e8a2e799ab0

Frozen corpus date

2026-07-25

Primary records

19

Reference sources

26

Questions and exclusions

Required questions

1. Required question 1 (exact ID: question-1)
   Does each evidence basis, readiness level, confidence level, rationale, and locator match the frozen sources?
2. Required question 2 (exact ID: question-2)
   Are dependencies, failure modes, precursors, unknowns, Earthside benefits, and the stop gate technically and ethically bounded?
3. Required question 3 (exact ID: question-3)
   Which conclusion should be approved, revised, contested, rejected, or recused from at its current fingerprint?

Explicit exclusions

• A system packet is not a complete spacecraft design, feasibility proof, safety case, or launch authorization.
• Context sources do not become direct support unless the record says so with an exact locator and relation.

Requested controlled scopes: information-science, propulsion-energy, systems-engineering

Frozen-evidence decision window: 365 days from the packet freeze. Not applicable to this packet family.

Complete primary record set

Every record below has one primary packet owner. Decisions must bind to the exact record and packet fingerprints; a changed lesson body, evidence grade, citation, locator, source snapshot, requirement, policy, release, or commit expires the old packet.

1. system · power-thermal

   Power generation & thermal rejection

   Record fingerprint

   65ac1cd7d2d1ecd37d37799aacf926baab8f73317188c3573e99a0f767090caf

   Minimum approvals

   1

   Required scope groups

   bounded-competence: propulsion-energy, systems-engineering

   High-consequence domains

   None under the named two-person rule

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   Slug

   power-thermal

   Name

   Power generation & thermal rejection

   Short Name

   Power & heat

   Index

   3

   Thesis

   The ship needs a maintainable energy ecosystem, not one miracle reactor. Nearly all electrical energy consumed inside a steady-state habitat ultimately appears as heat; energy exported in exhaust, directed radiation, discarded mass, or stored products must be accounted separately, and remaining waste heat must be transported and radiated to space.

   Current State

   1. Solar arrays, radioisotope systems, batteries, and conventional thermal hardware are flight-proven at present spacecraft scales.
   2. Kilopower demonstrated a small fission system on the ground, while higher-power space reactors remain development programs.
   3. Heat pipes, pumped loops, radiators, segmented buses, and load shedding are mature concepts but not at worldship scale.

   Unknowns

   1. No crewed space system has demonstrated an integrated megawatt-class electrical source and matching heat-rejection system.
   2. Century-scale conversion machinery, insulation, power electronics, working fluids, and black-start systems require replacement ecosystems.
   3. Fusion heat exhaust, radiation damage that varies by fuel cycle and design, fuel cycles, and radiator mass remain unresolved as a complete space system.

   Earth Benefits

   1. Resilient power islands, microgrid recovery, and condition monitoring benefit hospitals, remote communities, and critical infrastructure.
   2. High-temperature lightweight radiators and thermal-storage systems serve data centers, aircraft, and industrial energy systems.

   Dependencies

   1. manufacturing-isru
   2. structures-shielding
   3. cybersecurity

   Gate

   Demonstrate isolated power trains, black start, representative heat rejection, local repair, and stable operation through injected failures.

   Sources

   1. Title

      NASA Small Spacecraft Power State of the Art

      URL

      https://www.nasa.gov/smallsat-institute/sst-soa/power-subsystems/↗ (opens external site in a new tab)

      Kind

      Primary or institutional source

   2. Title

      NASA Thermal Control State of the Art

      URL

      https://www.nasa.gov/smallsat-institute/sst-soa/thermal-control/↗ (opens external site in a new tab)

      Kind

      Primary or institutional source

   3. Title

      NASA Kilopower

      URL

      https://www.nasa.gov/directorates/stmd/tech-demo-missions-program/kilopower-hmqzw/↗ (opens external site in a new tab)

      Kind

      Primary or institutional source

   Failure Modes

   1. A common electrical bus fault or control error cascades across life support, food, computing, and manufacturing.
   2. Radiator damage, fouling, or loss of coolant prevents black start and turns recoverable power into uninhabitable heat.

   Precursors

   1. Islandable terrestrial microgrids and remote critical-infrastructure black-start exercises.
   2. Long-life space power, heat-pipe, radiator, and waste-heat recovery demonstrations with injected failures.

2. claim · claim-03-01

   The ship needs a maintainable energy ecosystem, not one miracle reactor. Nearly all electrical energy consumed inside a steady-state habitat ultimately appears as heat; energy exported in exhaust, directed radiation, discarded mass, or stored products must be accounted separately, and remaining waste heat must be transported and radiated to space.

   Record fingerprint

   34da4e8e4f55c00d302f9adee98efac1438b717e2a6693e4186d636bf0b32b90

   Minimum approvals

   2

   Required scope groups

   domain-method: dual-use-risk, nuclear-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   dual-use, nuclear

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-01

   System Slug

   power-thermal

   Kind

   thesis

   Statement Ref

   Field

   thesis

   Statement

   The ship needs a maintainable energy ecosystem, not one miracle reactor. Nearly all electrical energy consumed inside a steady-state habitat ultimately appears as heat; energy exported in exhaust, directed radiation, discarded mass, or stored products must be accounted separately, and remaining waste heat must be transported and radiated to space.

   Statement Fingerprint

   6ddfd469016e60090dfabc331be6ea79f2df40f3a8b3a1bebb6b08098ac56b72

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   demonstrated

   Readiness

   Major scale up (exact value: major-scale-up)

   Confidence

   strong

   Rationale

   Energy conservation and operational spacecraft thermal control support the heat-accounting principle, while a maintainable settlement-scale power ecosystem remains a major integration and scale-up problem.

   Citations

   1. Source ID

      src-mp-nasa-power

      Locator

      Power generation, storage, conversion, and distribution state of the art.

      Relation

      Direct observation (exact value: direct-observation)

   2. Source ID

      src-mp-nasa-thermal

      Locator

      Passive and active spacecraft heat transport and rejection.

      Relation

      Direct observation (exact value: direct-observation)

   3. Source ID

      src-mp-nasa-se-handbook

      Locator

      Lifecycle and interface management for integrated systems.

      Relation

      Direct method (exact value: direct-method)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work.

   What Would Change

   An integrated long-duration high-power test with measured heat rejection, black start, replacement, degradation, and fault recovery would narrow the scale-up assessment.

   High Consequence

   1. nuclear
   2. dual-use

3. claim · claim-03-02

   Solar arrays, radioisotope systems, batteries, and conventional thermal hardware are flight-proven at present spacecraft scales.

   Record fingerprint

   b22a6dbda0f99fae70fd19f52c7dbc32cd5ce25c02bacea952010c6addfa59aa

   Minimum approvals

   2

   Required scope groups

   domain-method: nuclear-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   materials, nuclear, power, spacecraft-safety, thermal

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-02

   System Slug

   power-thermal

   Kind

   current state

   Statement Ref

   Field

   currentState

   Index

   0

   Statement

   Solar arrays, radioisotope systems, batteries, and conventional thermal hardware are flight-proven at present spacecraft scales.

   Statement Fingerprint

   853bacbe4cd84998b0fb385ba8e75204af50927d2655e9087ccbe18c730725de

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   demonstrated

   Readiness

   operational

   Confidence

   strong

   Rationale

   NASA records document flight use of photovoltaic generation, batteries, radioisotope-powered deep-space missions, and passive and active thermal-control hardware. The finding is restricted to current spacecraft scales and does not establish habitat-scale power, heat rejection, maintenance, or century-long renewal.

   Citations

   1. Source ID

      src-mp-nasa-power

      Locator

      Sections on photovoltaic generation, primary and secondary batteries, power conversion, regulation, distribution, protection, flight examples, and small-spacecraft scale.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   2. Source ID

      src-mp-nasa-thermal

      Locator

      Sections on passive coatings, insulation, heat pipes, louvers, heaters, pumped loops, radiators, flight examples, component limits, and scale.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   3. Source ID

      src-mp-voyager

      Locator

      Mission and spacecraft records covering multi-decade deep-space operation, radioisotope electrical power, declining power, thermal management, and present mission status.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work; no power-system supplier, nuclear program, NASA, customer, sponsor, or partner relationship currently exists.

   What Would Change

   Retirement or correction of cited flight records would alter examples; integrated crewed megawatt-scale demonstrations with representative heat rejection and maintainability would raise the applicable scale boundary.

   High Consequence

   1. spacecraft-safety
   2. power
   3. thermal
   4. materials
   5. nuclear

4. claim · claim-03-03

   Kilopower demonstrated a small fission system on the ground, while higher-power space reactors remain development programs.

   Record fingerprint

   319c9af94b88c2859ef9839fb802fce18dc03bc8fa943afe85854d3614b3ae63

   Minimum approvals

   2

   Required scope groups

   domain-method: dual-use-risk, nuclear-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   dual-use, nuclear, power, spacecraft-safety, thermal

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-03

   System Slug

   power-thermal

   Kind

   current state

   Statement Ref

   Field

   currentState

   Index

   1

   Statement

   Kilopower demonstrated a small fission system on the ground, while higher-power space reactors remain development programs.

   Statement Fingerprint

   4b56970fd5d39bc18789456a43edbbc95e41c88c90d4a0f7f376e987736bdfa7

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   demonstrated

   Readiness

   Early research (exact value: early-research)

   Confidence

   strong

   Rationale

   KRUSTY operated a roughly one-kilowatt-electric fission prototype in a ground nuclear test. NASA describes higher-power nuclear-electric and nuclear-thermal systems as technology-development efforts rather than operational crewed flight systems, preserving a clear demonstration boundary.

   Citations

   1. Source ID

      src-im-nasa-krusty

      Locator

      Abstract and design sections on the approximately one-kilowatt-electric reactor, heat pipes, Stirling conversion, March 2018 nuclear operation, test transients, and ground-test scope.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   2. Source ID

      src-pn-nasa-nuclear-propulsion

      Locator

      Program description of nuclear thermal and nuclear electric propulsion objectives, partnerships, development activities, proposed missions, power and propulsion benefits, and current status.

      Relation

      Scope boundary (exact value: scope-boundary)

   3. Source ID

      src-mp-nasa-power

      Locator

      Current flight power-generation and storage state of practice, subsystem scales, integration constraints, and technology-development context.

      Relation

      Scope boundary (exact value: scope-boundary)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work; no reactor laboratory, nuclear regulator, NASA program, supplier, customer, sponsor, or partner relationship currently exists.

   What Would Change

   A verified spaceflight reactor demonstration at materially higher electrical power, cancellation or redesign of current programs, or correction of the KRUSTY test record would change the readiness and current-state wording.

   High Consequence

   1. nuclear
   2. spacecraft-safety
   3. power
   4. thermal
   5. dual-use

5. claim · claim-03-04

   Heat pipes, pumped loops, radiators, segmented buses, and load shedding are mature concepts but not at worldship scale.

   Record fingerprint

   ef97be9658989461571b3c9138c623d7d59a501cb08a23e64eff16384e2cb75f

   Minimum approvals

   1

   Required scope groups

   bounded-competence: affected-public-rights, propulsion-energy, systems-engineering

   High-consequence domains

   None under the named two-person rule

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-04

   System Slug

   power-thermal

   Kind

   current state

   Statement Ref

   Field

   currentState

   Index

   2

   Statement

   Heat pipes, pumped loops, radiators, segmented buses, and load shedding are mature concepts but not at worldship scale.

   Statement Fingerprint

   b93c5375d359843442dbe9d076104589ccb96d74be9058839e07368bd8a06787

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   demonstrated

   Readiness

   Major scale up (exact value: major-scale-up)

   Confidence

   strong

   Rationale

   Heat pipes, pumped loops, radiators, segmented buses, protection, and load management operate in current terrestrial and spacecraft contexts. The cited evidence does not integrate or qualify those functions at settlement scale, across independent power islands, or through multigenerational replacement.

   Citations

   1. Source ID

      src-mp-nasa-power

      Locator

      Sections on electrical power generation, storage, conversion, regulation, distribution, and protection at current small-spacecraft scales.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   2. Source ID

      src-mp-nasa-thermal

      Locator

      Sections on passive and active heat transport, heat pipes, pumped loops, component temperature limits, and radiators.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   3. Source ID

      src-im-nasa-isam-2025

      Locator

      Introduction and capability survey describing present servicing, repair, assembly, and manufacturing boundaries.

      Relation

      limitation

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work.

   What Would Change

   A long-duration integrated test of multiple isolated power and thermal trains at representative load, including black start, radiator faults, measured degradation, repair, and safe resynchronization, would narrow the major-scale-up assessment.

   High Consequence

   None recorded

6. claim · claim-03-05

   No crewed space system has demonstrated an integrated megawatt-class electrical source and matching heat-rejection system.

   Record fingerprint

   d554b8cb521fe55ae9fbf4a09c0a8fb17ca88cd8ee427ada37c11286cff9b76d

   Minimum approvals

   2

   Required scope groups

   domain-method: nuclear-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   materials, nuclear, power, spacecraft-safety, thermal

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-05

   System Slug

   power-thermal

   Kind

   unknown

   Statement Ref

   Field

   unknowns

   Index

   0

   Statement

   No crewed space system has demonstrated an integrated megawatt-class electrical source and matching heat-rejection system.

   Statement Fingerprint

   e72055de898c1a90ceb68d83ebf700e5579e5b200d652578eb7bb0367731d4fe

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   observed

   Readiness

   Breakthrough dependent (exact value: breakthrough-dependent)

   Confidence

   strong

   Rationale

   The reviewed public record contains operational crewed power and thermal systems at far lower scales, a roughly one-kilowatt-electric ground reactor test, and higher-power development programs. It contains no integrated crewed megawatt-class electrical source and matched heat-rejection demonstration; this is a bounded public-record conclusion, not proof of universal absence.

   Citations

   1. Source ID

      src-mp-nasa-power

      Locator

      Flight state of practice for spacecraft generation, storage, conversion, distribution, protection, performance ranges, and present small-spacecraft examples.

      Relation

      Direct observation (exact value: direct-observation)

   2. Source ID

      src-mp-nasa-thermal

      Locator

      Flight state of practice for passive and active heat transport and rejection, radiator technologies, component limits, and present spacecraft examples.

      Relation

      Scope boundary (exact value: scope-boundary)

   3. Source ID

      src-im-nasa-krusty

      Locator

      Approximately one-kilowatt-electric ground reactor, heat-pipe and Stirling-converter configuration, nuclear test operation, and non-flight scope.

      Relation

      Scope boundary (exact value: scope-boundary)

   4. Source ID

      src-pn-nasa-nuclear-propulsion

      Locator

      Current nuclear propulsion development objectives, proposed power and mission applications, program partnerships, and technology-development status.

      Relation

      Scope boundary (exact value: scope-boundary)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work; no classified-program access, reactor developer, nuclear authority, NASA, customer, sponsor, or partner relationship currently exists.

   What Would Change

   A documented crewed demonstration integrating at least megawatt-class electrical output with representative conversion, distribution, transient control, decay-heat handling, radiators, shielding, maintenance, and safe shutdown would reverse this finding.

   High Consequence

   1. nuclear
   2. spacecraft-safety
   3. power
   4. thermal
   5. materials

7. claim · claim-03-06

   Century-scale conversion machinery, insulation, power electronics, working fluids, and black-start systems require replacement ecosystems.

   Record fingerprint

   c27cdc911713bb584418bf1bc3bbccbe00c3c3c07928233eece70fdfb1afb2bb

   Minimum approvals

   2

   Required scope groups

   domain-method: propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   life-support-continuity, spacecraft-safety

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-06

   System Slug

   power-thermal

   Kind

   unknown

   Statement Ref

   Field

   unknowns

   Index

   1

   Statement

   Century-scale conversion machinery, insulation, power electronics, working fluids, and black-start systems require replacement ecosystems.

   Statement Fingerprint

   5ee4631d8d45d1e120b6dff9873342c7d2fe817a2b1a5161d9db15db4e09fcc0

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   normative

   Readiness

   Breakthrough dependent (exact value: breakthrough-dependent)

   Confidence

   supported

   Rationale

   Current reliability and maintainability practice makes restoration, access, testability, logistics, and lifecycle evidence design responsibilities. Extending operation from bounded missions to centuries without an external supplier implies a local replacement ecosystem, but no cited source demonstrates that closure.

   Citations

   1. Source ID

      src-im-nasa-rm-8729

      Locator

      Scope and reliability-and-maintainability objectives for planning, analysis, demonstration, verification, operations, and lifecycle evaluation.

      Relation

      Direct method (exact value: direct-method)

   2. Source ID

      src-im-nasa-maintainability-tm4628

      Locator

      Design and development, analysis and test, and operations techniques for access, fault isolation, restoration, handling, and sustaining aging capability.

      Relation

      Direct method (exact value: direct-method)

   3. Source ID

      src-im-nasa-ism-portfolio-2025

      Locator

      Portfolio sections on in-space fabrication, recycling, electronics, joining, inspection, and the incomplete Refabricator demonstration.

      Relation

      limitation

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work.

   What Would Change

   A representative multi-decade test that replaces failed conversion, insulation, power-electronic, working-fluid, control, and black-start functions using a declared local inventory and reproducible skills would raise readiness; evidence of unavoidable finite-life inputs would instead bound mission duration.

   High Consequence

   1. spacecraft-safety
   2. life-support-continuity

8. claim · claim-03-07

   Fusion heat exhaust, radiation damage that varies by fuel cycle and design, fuel cycles, and radiator mass remain unresolved as a complete space system.

   Record fingerprint

   0e9e6124de30f8bfdcf52de2a01cc0144ad4680d2b9961b7df8c83d762caab32

   Minimum approvals

   2

   Required scope groups

   domain-method: dual-use-risk, nuclear-safety, propulsion-energy, radiation-health-physics, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   dual-use, nuclear, radiation

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-07

   System Slug

   power-thermal

   Kind

   unknown

   Statement Ref

   Field

   unknowns

   Index

   2

   Statement

   Fusion heat exhaust, radiation damage that varies by fuel cycle and design, fuel cycles, and radiator mass remain unresolved as a complete space system.

   Statement Fingerprint

   3a00029c5e6c7bd134a39594967eb225e5e129f4d9e79de181d9ae5500e8fafe

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   modeled

   Readiness

   Breakthrough dependent (exact value: breakthrough-dependent)

   Confidence

   supported

   Rationale

   Fusion fuel choice and reaction-product spectrum alter shielding, activation, damage, conversion, and heat loads. Current ignition experiments and spacecraft thermal systems do not demonstrate a maintainable complete fusion power-and-propulsion system with a closed fuel and radiator account.

   Citations

   1. Source ID

      src-pn-llnl-fusion-ignition

      Locator

      Inertial-confinement target input, output, ignition, and target-gain experiment boundary.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   2. Source ID

      src-po-nasa-interstellar-propulsion

      Locator

      Fusion propulsion concepts, power, fuel, materials, radiation, heat, and technology-readiness gaps.

      Relation

      Direct model (exact value: direct-model)

   3. Source ID

      src-mp-nasa-thermal

      Locator

      Present passive and active spacecraft heat transport and rejection architectures and limits.

      Relation

      Scope boundary (exact value: scope-boundary)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work.

   What Would Change

   A representative integrated system that measures fuel closure, driver power, burn duty cycle, product handling, radiation damage, shielding, conversion, radiator mass, replacement, and safe failure would change the readiness assessment.

   High Consequence

   1. nuclear
   2. radiation
   3. dual-use

9. claim · claim-03-08

   Resilient power islands, microgrid recovery, and condition monitoring benefit hospitals, remote communities, and critical infrastructure.

   Record fingerprint

   69793a94f00180b8b3cae6a8426b584bee7df47ea0c924d100f41f2e2c0ab8cf

   Minimum approvals

   2

   Required scope groups

   domain-method: clinical-health, defensive-cyber-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

   High-consequence domains

   critical-infrastructure, cybersecurity, medical, power

   Review state

   pending

   Published human decisions

   0

   Inspect the complete frozen review surface

   ID

   claim-03-08

   System Slug

   power-thermal

   Kind

   earth benefit

   Statement Ref

   Field

   earthBenefits

   Index

   0

   Statement

   Resilient power islands, microgrid recovery, and condition monitoring benefit hospitals, remote communities, and critical infrastructure.

   Statement Fingerprint

   62f935a4d4a0b7481f0c7d385983745308196cf7751b0967ed034ac08f5d6c65

   Assessment

   Status

   Editorial assessed (exact value: editorial-assessed)

   Basis

   demonstrated

   Readiness

   operational

   Confidence

   supported

   Rationale

   Microgrid islanding, black-start testing, operational-technology monitoring, and disaster-resilience planning are established terrestrial practices relevant to hospitals, remote communities, and critical infrastructure. Outcomes remain architecture-, operator-, hazard-, and jurisdiction-specific, so the broad benefit should not be read as guaranteed.

   Citations

   1. Source ID

      src-pa-doe-microgrids

      Locator

      Report sections on resilience, intentional islanding, local generation and storage, critical loads, remote and community use cases, planning, and recovery.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   2. Source ID

      src-im-nlr-black-start

      Locator

      Experimental setup and results for inverter-driven black start, transformer energization, motor loads, unbalanced feeder operation, controls, and hardware-in-the-loop limitations.

      Relation

      Direct demonstration (exact value: direct-demonstration)

   3. Source ID

      src-im-nist-ot-80082r3

      Locator

      Sections 2–6 on OT architectures, monitoring, safety, reliability, availability, segmentation, threats, incident response, and recovery constraints.

      Relation

      Context only (exact value: context-only)

   4. Source ID

      src-gr-undrr-sendai

      Locator

      Priorities 3–4 on resilience investment, critical infrastructure, health facilities, preparedness, continuity, recovery, and build back better.

      Relation

      Context only (exact value: context-only)

   Context Source IDs

   1. core-03-1
   2. core-03-2
   3. core-03-3

   Editorial Provenance

   Status

   Substantive editorial review (exact value: substantive-editorial-review)

   Reviewers

   1. GShips Project editorial synthesis

   Conflicts

   1. Publisher intends to explore a commercial venture based on some GShips work and could benefit from resilience products; no utility, hospital, emergency agency, laboratory, customer, sponsor, or partner relationship currently exists.

   What Would Change

   Multi-site evidence showing worse outage duration, safety, equity, cyber exposure, lifecycle cost, or recovery under islanded architectures—or reproducible improvements across the named settings—would change the breadth and confidence.

   High Consequence

   1. critical-infrastructure
   2. power
   3. cyber
   4. medical

10. claim · claim-03-09

    High-temperature lightweight radiators and thermal-storage systems serve data centers, aircraft, and industrial energy systems.

    Record fingerprint

    4757f277a52cafd1244acf961d41988fa269b0693c7096ec941b0e9b406d9605

    Minimum approvals

    2

    Required scope groups

    domain-method: propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

    High-consequence domains

    materials, power, spacecraft-safety, thermal

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    claim-03-09

    System Slug

    power-thermal

    Kind

    earth benefit

    Statement Ref

    Field

    earthBenefits

    Index

    1

    Statement

    High-temperature lightweight radiators and thermal-storage systems serve data centers, aircraft, and industrial energy systems.

    Statement Fingerprint

    7ab05a6b71944aae8efb79fe6830d1df7b65b761b0b579fbd89695b23445a29c

    Assessment

    Status

    Editorial assessed (exact value: editorial-assessed)

    Basis

    proposed

    Readiness

    Early research (exact value: early-research)

    Confidence

    tentative

    Rationale

    Current spacecraft, aircraft, building, and industrial programs use or investigate heat transport, radiators, lightweight thermal management, and thermal storage. The cited records do not demonstrate that one high-temperature lightweight system transfers across data centers, aircraft, and industrial energy systems without sector-specific safety, cost, materials, and maintenance tradeoffs.

    Citations

    1. Source ID

       src-mp-nasa-thermal

       Locator

       Passive and active spacecraft thermal-control sections covering heat pipes, pumped loops, radiators, materials, integration, component temperature limits, and present scale.

       Relation

       Context only (exact value: context-only)

    2. Source ID

       src-ca-nasa-aircraft-thermal

       Locator

       Technology overview, thermoacoustic engine concept, waste-heat use, aircraft propulsion and electronics cooling application, mass and efficiency claims, and licensing-stage boundary.

       Relation

       Direct observation (exact value: direct-observation)

    3. Source ID

       src-ca-doe-thermal-storage

       Locator

       Definitions and program sections on thermal-energy storage, heat-transfer media, molten-salt state of practice, industrial process heat, and higher-temperature research.

       Relation

       Context only (exact value: context-only)

    Context Source IDs

    1. core-03-1
    2. core-03-2
    3. core-03-3

    Editorial Provenance

    Status

    Substantive editorial review (exact value: substantive-editorial-review)

    Reviewers

    1. GShips Project editorial synthesis

    Conflicts

    1. Publisher intends to explore a commercial venture based on some GShips work; no thermal-technology licensor, aircraft company, data-center operator, industrial customer, sponsor, or partner relationship currently exists.

    What Would Change

    Independent demonstrations showing shared high-temperature lightweight hardware achieves competitive mass, reliability, safety, maintainability, cost, and lifecycle performance in each named sector would raise readiness and confidence.

    High Consequence

    1. materials
    2. thermal
    3. power
    4. spacecraft-safety

11. claim · claim-03-10

    Demonstrate isolated power trains, black start, representative heat rejection, local repair, and stable operation through injected failures.

    Record fingerprint

    3c5189174822ba2e596be36f4e9c09ad4837d54357f9cfd8b3805bfffe6445eb

    Minimum approvals

    2

    Required scope groups

    domain-method: defensive-cyber-safety, nuclear-safety, propulsion-energy, systems-engineering; rights-public-interest: affected-public-rights

    High-consequence domains

    cybersecurity, life-support-continuity, nuclear, spacecraft-safety

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    claim-03-10

    System Slug

    power-thermal

    Kind

    decision gate

    Statement Ref

    Field

    gate

    Statement

    Demonstrate isolated power trains, black start, representative heat rejection, local repair, and stable operation through injected failures.

    Statement Fingerprint

    066a9afb23215a2b5c64a630aa259f820947f617ecd47efbea945256e8bc1675

    Assessment

    Status

    Editorial assessed (exact value: editorial-assessed)

    Basis

    normative

    Readiness

    Early research (exact value: early-research)

    Confidence

    supported

    Rationale

    The proposed gate combines demonstrated terrestrial black-start methods, a bounded small-fission ground demonstration, current spacecraft power and thermal practice, and safety-aware operational-technology recovery. It is a GShips test requirement, not a claim that the integrated capability already exists.

    Citations

    1. Source ID

       src-im-nlr-black-start

       Locator

       Experimental setup and results for power-hardware-in-the-loop black start with grid-forming inverters, transformer energization, motor behavior, and unbalanced loads.

       Relation

       Direct method (exact value: direct-method)

    2. Source ID

       src-im-nasa-krusty

       Locator

       Abstract, design, and March 2018 operation of the roughly one-kilowatt-electric ground fission prototype.

       Relation

       Direct demonstration (exact value: direct-demonstration)

    3. Source ID

       src-im-nist-ot-80082r3

       Locator

       Sections 2, 3, 5, and 6 on OT safety and availability constraints, architectures, threats, segmentation, incident response, and recovery.

       Relation

       Direct normative authority (exact value: direct-normative-authority)

    Context Source IDs

    1. core-03-1
    2. core-03-2
    3. core-03-3

    Editorial Provenance

    Status

    Substantive editorial review (exact value: substantive-editorial-review)

    Reviewers

    1. GShips Project editorial synthesis

    Conflicts

    1. Publisher intends to explore a commercial venture based on some GShips work.

    What Would Change

    An independently reviewed assurance protocol that demonstrates equal or stronger coverage of isolated generation, representative heat rejection, passive survival, black start, local repair, cyber fault recovery, and repeated injected failures could replace or satisfy this gate.

    High Consequence

    1. nuclear
    2. cybersecurity
    3. spacecraft-safety
    4. life-support-continuity

12. claim-source · src-ca-doe-thermal-storage

    Solar Thermal Energy Storage and Heat Transfer Media↗ (opens external site in a new tab)

    Record fingerprint

    820a1200218dd6b10cfc95ca62571e01f47dcf0cb699f8a9c9ea7970dd6156dc

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-ca-doe-thermal-storage

    Title

    Solar Thermal Energy Storage and Heat Transfer Media

    Authors

    1. U.S. Department of Energy

    Publisher

    U.S. Department of Energy

    Year

    2026

    URL

    https://www.energy.gov/cmei/systems/solar-thermal-energy-storage-and-heat-transfer-media↗ (opens external site in a new tab)

    Kind

    Government technology program record (exact value: government-technology-program-record)

    Checked At

    2026-07-25

    Scope Note

    Current DOE description of thermal-energy storage and heat-transfer media for dispatchable electricity and industrial process heat, including present molten-salt practice and higher-temperature research.

13. claim-source · src-ca-nasa-aircraft-thermal

    Thermal Management for Aircraft Propulsion Systems↗ (opens external site in a new tab)

    Record fingerprint

    04314a6ccb8c3c5f7c3de48d7affbfb2c0a8749e24c3910075ac6e7a15fb41af

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-ca-nasa-aircraft-thermal

    Title

    Thermal Management for Aircraft Propulsion Systems

    Authors

    1. National Aeronautics and Space Administration

    Publisher

    NASA Technology Transfer Program

    Year

    2026

    URL

    https://technology.nasa.gov/patent/LEW-TOPS-110↗ (opens external site in a new tab)

    Kind

    Government technology transfer record (exact value: government-technology-transfer-record)

    Checked At

    2026-07-25

    Scope Note

    NASA Glenn technology record for a proposed lightweight thermoacoustic aircraft-propulsion thermal-management system; a transfer opportunity, not evidence of fleet-scale adoption.

14. claim-source · src-im-nasa-isam-2025

    In-Space Servicing, Assembly, and Manufacturing State of Play: 2025 Edition↗ (opens external site in a new tab)

    Record fingerprint

    4ee5cffad11832f3a52484c44217ef44f63bb5d5da9e3d47186f35fea1ab886d

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-im-nasa-isam-2025

    Title

    In-Space Servicing, Assembly, and Manufacturing State of Play: 2025 Edition

    Authors

    1. John Mulvaney
    2. Dale Arney
    3. Christina Williams
    4. Jose Morel
    5. Christopher Stockdale
    6. Christopher Whitlock
    7. Vishruth Balaji

    Publisher

    NASA Technical Reports Server

    Year

    2025

    URL

    https://ntrs.nasa.gov/citations/20250008988↗ (opens external site in a new tab)

    Kind

    Institutional state of the art (exact value: institutional-state-of-the-art)

    Checked At

    2026-07-25

    Scope Note

    NASA peer-committee-reviewed taxonomy and status survey of inspection, servicing, assembly, fabrication, repair, construction, and enabling capabilities.

15. claim-source · src-im-nasa-krusty

    KRUSTY Reactor Design↗ (opens external site in a new tab)

    Record fingerprint

    f0f36371e176f9cd40e5050e09e8de492f5780a05f979f99531b9f9ba6788592

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-im-nasa-krusty

    Title

    KRUSTY Reactor Design

    Authors

    1. David I. Poston
    2. Marc A. Gibson
    3. Thomas Godfroy
    4. Patrick R. McClure

    Publisher

    NASA Technical Reports Server

    Year

    2020

    URL

    https://ntrs.nasa.gov/citations/20205009350↗ (opens external site in a new tab)

    Kind

    Peer reviewed ground demonstration report (exact value: peer-reviewed-ground-demonstration-report)

    Checked At

    2026-07-25

    Scope Note

    Design and March 2018 ground nuclear operation of a roughly one-kilowatt-electric Kilopower prototype; not a flight or habitat-scale power demonstration.

16. claim-source · src-im-nasa-maintainability-tm4628

    Recommended Techniques for Effective Maintainability↗ (opens external site in a new tab)

    Record fingerprint

    8d07e8e57c8b39afc5ed42418438ee95064f7602aeb1849436bec43bac7d270c

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-im-nasa-maintainability-tm4628

    Title

    Recommended Techniques for Effective Maintainability

    Authors

    1. NASA Reliability and Maintainability Steering Committee

    Publisher

    NASA Technical Reports Server

    Year

    1994

    URL

    https://ntrs.nasa.gov/citations/19950025109↗ (opens external site in a new tab)

    Kind

    Institutional maintainability handbook (exact value: institutional-maintainability-handbook)

    Checked At

    2026-07-25

    Scope Note

    Design access, fault isolation, testability, standardization, handling, maintenance analysis, demonstration, training, and operational restoration.

17. claim-source · src-im-nist-ot-80082r3

    Guide to Operational Technology Security↗ (opens external site in a new tab)

    Record fingerprint

    079024b69f4ab4aeaa8755b5bf62674b9f4cae4428d4ea97744c9cb78cdb593e

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-im-nist-ot-80082r3

    Title

    Guide to Operational Technology Security

    Authors

    1. Keith Stouffer
    2. Michael Pease
    3. CheeYee Tang
    4. Timothy Zimmerman
    5. Victoria Pillitteri
    6. Suzanne Lightman
    7. Adam Hahn
    8. Stephanie Saravia
    9. Aslam Sherule
    10. Michael Thompson

    Publisher

    NIST

    Year

    2023

    URL

    https://doi.org/10.6028/NIST.SP.800-82r3↗ (opens external site in a new tab)

    Kind

    Government cybersecurity guidance (exact value: government-cybersecurity-guidance)

    Checked At

    2026-07-25

    Scope Note

    Operational-technology architectures, safety and availability constraints, threats, segmentation, supply-chain and maintenance risks, countermeasures, and recovery.

18. claim-source · src-im-nlr-black-start

    Parallel Grid-Forming Inverter-Driven Black Start: Power-Hardware-in-the-Loop Validation↗ (opens external site in a new tab)

    Record fingerprint

    446b4c21bcf2d6945bd5498ca1b18d1666a931b8f394c3a4140b76b3beb5c2fb

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-im-nlr-black-start

    Title

    Parallel Grid-Forming Inverter-Driven Black Start: Power-Hardware-in-the-Loop Validation

    Authors

    1. Gab-Su Seo
    2. Jay Sawant
    3. Fei Ding

    Publisher

    National Renewable Energy Laboratory

    Year

    2023

    URL

    https://docs.nlr.gov/docs/fy24osti/87257.pdf↗ (opens external site in a new tab)

    Kind

    National laboratory experimental paper (exact value: national-laboratory-experimental-paper)

    Checked At

    2026-07-25

    Scope Note

    Power-hardware-in-the-loop black-start validation using a commercial grid-forming inverter with a modeled five-megawatt unbalanced feeder, transformer, motor, and inrush behavior.

19. claim-source · src-mp-nasa-power

    Small Spacecraft Power Subsystems↗ (opens external site in a new tab)

    Record fingerprint

    7ffb4fcfdd64a058106a28aa8491e5faecc309c5c6327a114e3104f0c3f907d7

    Minimum approvals

    1

    Required scope groups

    bounded-competence: information-science

    High-consequence domains

    None under the named two-person rule

    Review state

    pending

    Published human decisions

    0

    Inspect the complete frozen review surface

    ID

    src-mp-nasa-power

    Title

    Small Spacecraft Power Subsystems

    Authors

    1. NASA Small Spacecraft Systems Virtual Institute

    Publisher

    NASA

    Year

    2026

    URL

    https://www.nasa.gov/smallsat-institute/sst-soa/power-subsystems/↗ (opens external site in a new tab)

    Kind

    Institutional state of the art (exact value: institutional-state-of-the-art)

    Checked At

    2026-07-25

    Scope Note

    Flown and developing power generation, storage, conversion, and distribution technologies.

Frozen source snapshots

Source inclusion does not determine the disposition. Reviewers must inspect the cited locator and relation, note inaccessible material, and identify stronger or conflicting evidence.

Offline packet and worksheet

Downloads contain no reviewer contact details. Downloading does not create an account or store a review response in the GShips application. Ordinary provider request or analytics logs may record the download request. Work locally: the public site has no review account, upload endpoint, or decision-submission API.

Do not paste a completed decision, identity documents, private contact data, confidential conflict evidence, medical information, controlled material, or exploit details into a public form. Until a separately authorized private handoff exists, retain the completed worksheet locally.

Packet schema · JSON · Decision-bundle schema · JSON

Validate offline

Use Node.js 22.13.0 or later. Keep the packet, worksheet, completed decision, and all six kit files together in a local directory.

1. Download the six kit files below. Complete a copy of the JSON template offline and preserve its templateFingerprint.
2. Finalize a separate output file.

   node finalize-review-decision.mjs \
     --input DRAFT.json \
     --output COMPLETED.json

   This marks the copy complete and calculates an unkeyed canonical bundle fingerprint. A fingerprint detects changes; it is not a reviewer signature.

3. Validate the packet and completed copy.

   node check-review-decisions.mjs \
     --packet PACKET.json \
     --decision COMPLETED.json

   Add another --decision for each independent reviewer.

4. Interpret the result narrowly. A zero exit proves structural consistency only. Neither command appoints or qualifies a reviewer, establishes independence, accepts a decision, or authorizes publication.

• Bundle finalizer
• Validator command
• Decision policy module
• Fingerprint and packet-integrity module
• Review-domain policy module
• Canonical synthesis and interactive review specs