How it helps
Use it for a focused task
A worksheet where you list devices, their power draw in watts, and how many hours per day each one sits in standby or stays on. The page calculates yearly kilowatt-hours and cost, ranks the devices, and gives a leave-on or unplug verdict for each.
Presets fill the table with typical household examples so the page makes sense before you type anything. Start with a preset or edit the sample rows.
Each row needs a device name, a watt figure, daily hours, and a price per kilowatt-hour. Find watts on the label, in the manual, or with a plug-in energy monitor.



