Energy Systems — Irreversible Safety-by-Design Storage

Irreversibility Progression

1. 1
   Concept

   Define the non-negotiables. Specify what must never happen and the boundary conditions that refuse it.

   Phase gates (project-specific)

   • Define forbidden outcomes.
   • Map passive safety boundaries.
   • Specify custody horizon.
2. 2
   Prototype

   Prove bounded failure. Demonstrate the refusal holds under representative stress and degradation.

   Phase gates (project-specific)

   • Demonstrate bounded failure.
   • Validate containment.
   • Stress-test degradation.
3. 3
   Deployment

   Lock custody across time. Make irreversibility institutional: accountability and exit routes are fixed.

   Phase gates (project-specific)

   • Custody & decommission locked.
   • Monitoring becomes confirmatory.
   • Intergenerational accountability assigned.

The timeline becomes real only when each gate is satisfied. Irreversibility is not a label; it is a completed constraint.