Small Signals · field tools
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A small plan for a tighter power budget

Give each watt
a place to grow.

Sketch a day of energy use, see what it costs, and compare a planned outage with the battery capacity you enter. Try the example or replace every number with your own.

Your scenario

All values are estimates based on your inputs.

Display only; not a conversion.
Per kWh
Hours you want to plan for
Watt-hours available to loads

What draws power?

Enter the device label, rated watts, daily use and use during the outage window. Priorities describe your choices; they are not safety guidance.

A quick read of the plan

Numbers update as you edit. This is a planning sketch, not an equipment specification.

Daily use
—kWh across listed devices
Daily cost
—At your entered rate
Outage energy
—kWh requested in the window
Battery cover
—Against all listed outage loads

Daily energy by device

Use with care. Wattage, daily hours, tariffs and battery capacity are user-entered estimates. Real devices can draw more at startup; battery/inverter performance varies. This tool does not size wiring, generators, batteries or medical systems. For electrical design or safety-critical loads, use a qualified local professional.