Report 15

Autonomy Score Methodology

A repeatable engineering methodology for measuring how long a site can preserve selected essential functions under 72 / 120 / 240-hour disruption scenarios.

Prepared as a public analytical engineering and market report. Status: April 2026.

Executive view

Autonomy should be measured before it is sold.

Resilience discussions often become vague: “prepared,” “safe,” “autonomous,” “backup-ready.” The Autonomy Score methodology converts those words into a structured engineering assessment. It evaluates how long a building, organisation or community site can maintain essential functions under defined disruption scenarios and where the main weaknesses are.

The method is designed for practical projects: buildings, schools, warehouses, apartment buildings, farms, shelters, resilience points and supplier pilots. It supports 72 / 120 / 240-hour autonomy planning and connects analysis to equipment configuration, implementation boundaries and maintenance routines.

Method thesis: autonomy is not a product. It is the measurable ability to preserve selected functions for a defined time under defined constraints.

1. Score dimensions

The methodology uses nine dimensions. Each dimension is assessed independently, then combined into a practical readiness profile.

DimensionMeaningTypical evidence
Energy autonomyAbility to power essential loads for defined scenarios.Critical-load list, UPS/BESS/generator data, battery tests, fuel/solar assumptions.
Water autonomyAccess to drinking water, basic hygiene and water-dependent functions.Storage, treatment, rotation, pump power, distribution plan.
Communication continuityAbility to communicate internally and externally when normal channels degrade.Mobile, radio, satcom, routers, contact trees, test logs.
Stockpile readinessPresence, condition and maintainability of emergency supplies.Inventory, expiry dates, photos, inspections, replenishment log.
Operational rolesPeople know who activates, checks, communicates and restores.Role list, training records, drill notes, escalation plan.
DocumentationReadiness can be explained, audited and repeated.Plans, checklists, manuals, supplier files, reports.
MaintainabilitySystems remain ready after months and years, not only after installation.Service intervals, test schedule, warranty, spare parts, responsible owner.
Supplier/service dependencyDependence on external technicians, consumables, networks, cloud services or proprietary parts.Supplier map, spare-parts lead time, service SLA, offline fallback.
Recovery timeSpeed of restoring minimum function after disruption.Restart procedure, access to parts, staff availability, alternate sites and recovery checklist.

2. Score levels

A simple five-level scale makes results readable without hiding engineering detail.

LevelInterpretationTypical state
1UnstructuredNo reliable inventory, no critical-load model, no responsible owner, no evidence.
2BasicSome equipment exists, but documentation, testing and maintenance are weak.
3OperationalEssential functions are identified, equipment is mapped and periodic checks exist.
4ManagedMonitoring, inspection evidence, roles, replenishment and service routines are active.
5ResilientScenario-tested, maintained, documented and able to adapt under prolonged disruption.

3. Assessment inputs

The Autonomy Score can begin as a remote assessment, then deepen through site visits and sensor/equipment data.

Questionnaire

Site type, people count, operating hours, critical functions, disruption concerns and existing equipment.

Documents

Floor plans, electrical diagrams, supplier manuals, maintenance records, inventory sheets and emergency plans.

Photos

Storage rooms, panels, backup devices, exits, signage, water points, communications and access routes.

Equipment data

Battery capacity, UPS runtime, generator rating, fuel capacity, PV output, router and radio details.

Human process

Responsible persons, contact trees, activation process, drills and staff availability.

External dependencies

Grid, water supply, mobile network, fuel deliveries, supplier parts, cloud systems and access roads.

4. 72 / 120 / 240-hour methodology

The same site can score differently by target duration. A school may be adequate for a 72-hour limited continuity scenario but weak for 120 hours if water, sanitation or battery maintenance are insufficient. A farm may have strong energy autonomy but weak communications fallback. A warehouse may have good generator capacity but no documented recovery procedure.

ScenarioPurposeTypical evaluation emphasis
72 hoursInitial emergency self-sufficiency and continuity.Essential supplies, communications, lighting, access, selected power and basic roles.
120 hoursLonger disruption with maintenance and replenishment pressure.Load reduction, water rotation, sanitation, staff roles, battery/generator tests and stock condition.
240 hoursHigh-resilience or recovery-site planning.Solar/fuel replenishment, spare parts, service dependency, recovery logistics and multi-site coordination.

5. Outputs

A useful score must lead to decisions. The recommended output package includes:

  • overall autonomy profile and dimension scores;
  • critical-load map and runtime assumptions;
  • water, communication and stockpile gap analysis;
  • maintenance and inspection weaknesses;
  • equipment categories required, with compliance questions;
  • quick-win actions that do not require heavy investment;
  • implementation roadmap by priority;
  • evidence checklist for management, insurer, public buyer or partner review.

6. Applications

ApplicationWhat the score clarifiesNext action
Building ownerWhat essential services remain available during outage.Power continuity package and inspection routine.
Supplier pilotWhere a product fits into a real autonomy gap.Pilot design and measurable success criteria.
MunicipalityWhich sites are weakest and which upgrades are repeatable.Multi-site readiness map and procurement package.
SchoolHow staff, supplies, power and communication work together.StockpileOps and shelter operating-layer setup.
Farm / rural siteEnergy, water and communication dependencies.Solar-ready backup architecture and water plan.

7. AI role in the methodology

AI can accelerate the assessment by structuring input data, identifying missing information, drafting scenario narratives, summarising logs and producing first-pass gap analysis. Final judgement should remain human-reviewed, especially where electrical systems, safety, buildings, communications or public procurement are involved.

AI boundary: the methodology uses AI to support analysis and documentation. It does not delegate safety-critical engineering decisions to a model.

8. Strategic conclusion

The Autonomy Score turns resilience from a vague aspiration into a repeatable engineering conversation. It helps customers understand their current position, suppliers understand where their technology fits, and integrators define project scope without overbuilding.

The strongest commercial use is as a front-end method for projects: assess first, configure second, implement third and maintain continuously.

Sources and basis

  1. European Commission — EU Preparedness Union Strategy and 72-hour preparedness guidance.
  2. European Commission — EU Stockpiling Strategy.
  3. European Commission — Critical Entities Resilience Directive context.
  4. European Commission — NIS2 Directive and continuity/cybersecurity context.
  5. Scientific Advice Mechanism — AI in emergency and crisis management evidence review.