Power Sizing Worksheet Pack

The Power Sizing Worksheet Pack turns backup-power planning into a practical, step-by-step system you can complete using your own equipment and household energy needs.

Start by identifying the devices you may need during an outage. Record running and surge watts, calculate daily energy requirements, estimate battery runtime, check ports and power limits, and build a realistic recharging budget.

A worked example demonstrates the sizing method before you complete your own calculations, while the included cheat sheet provides quick-reference guidance for watt-hours, watts, runtime, reserve planning, surge requirements and outage considerations.

Inside the pack:

Power Sizing Cheat Sheet

Device Power List

Daily Energy Budget

Worked Sizing Example

Runtime Calculator with three scenarios

Ports, Plugs and Limits Worksheet

Recharge Budget

Fridge and Freezer Log

Outage Energy Log

Before-the-Storm Safety Check

Verification resources for important safety information

Designed for households using or considering portable battery backup systems and wanting a structured method for understanding watts, watt-hours, runtime, recharging and household power priorities.

Pair it with the Home Battery Backup & Blackout Power Guide for a more complete learning-and-planning system.