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Runbook — power loss at remote site

Prerequisites: Field telemetry reference architecture — homestead + 120-acre farm; power assumptions in that doc (solar/battery/grid). Link Off-grid solar power and storage (special topic) for design context.

Purpose

When SITE_FARM (or a field hub) loses mains or battery hits low-voltage cutoff, field telemetry and actuators may fail opposite to “safe”—know fail-open vs fail-closed per install.

Detection

  • Monitoring: UPS, battery SOC, last-seen on gateway—if architecture documents them.
  • On-site: no pump, dark barn, silent inverter.

Immediate actions

  1. Safety: livestock water—manual fill or generator per pre-placed SOP (placeholders: GEN_START_STEPS_REF).
  2. Do not trust remote commands until power and time sync are healthy.
  3. Spoilage / cold chain: if relevant—inventory decision tree (business).

Recovery

Label breakers and generator cords before you need them in the dark.