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Backup Load Priority Planner

Split the backup list into must-run, important, and optional tiers, then size the set for each tier.

Inputs

Inputs and assumptions

Result

Rating avoided by shedding tier 3
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Generator for tier 1 only
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Generator for everything
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Generator for tiers 1 and 2
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What to check

  • Which circuits the ATS can switch or shed
  • Occupant requirements during a multi-day outage

Related calculators

Load arithmetic only. Nameplate watts, motor starting data, and the adopted electrical code edition govern the real answer; a licensed electrician or engineer signs off the design.

Saved calculations

Keep the assumptions with the result.

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