Make the power plan feel manageable.

WattReady Guide helps people understand backup power before they spend money or face an outage. We translate watt-hours, power limits and runtime estimates into plain-language decisions.

A practical starting point

Our tools are designed to make assumptions visible and editable. The example numbers are illustrative; the most useful estimate is built from your appliance labels, measured use and the specifications for the equipment you are considering.

Independent by design

WattReady Guide is an editorial planning resource, not an equipment manufacturer, installer, electrician or emergency service. Some future links may earn a commission if you buy through them. Any such relationship will be clearly disclosed, and it will not change the calculator’s results.

Corrections and questions

If you spot a mistake or have a question about our methods, please send us a note. We review corrections and update pages when information or assumptions change.

Read our editorial policy or review the calculator methodology.