Load Calculator: What should stay on during outages?

Add your appliances, set quantity, hours, and watts (you can edit watts). We’ll show total kWh per day and a practical setup that assumes solar helps during the day.

Step 2 of 3

Home basics

Your name (optional) Location

Tip: If you use something for 30 minutes, enter 0.5 hours.

Solar assumptions (simple)

Peak sun hours

Panel size (W)

System efficiency

How much of your daily use happens during daytime (solar can cover it)?

This doesn’t reduce your total daily kWh. It reduces the battery needed because solar can carry daytime loads.

Appliance

Qty

Watts

Hours

Peak use

Total daily energy

0.00kWh/day

Estimated peak power

0.0kW

Practical recommended setup (battery + inverter + panels)

Battery needed: 0.0 kWh Inverter size: 0.0 kW Panels: 0 panels

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Note: This calculator gives a structured estimate. Final sizing depends on wiring plan, surge loads, and what you want running together.