WattReady Sizes Your Backup Power Plan

Why it surfaced

WattReady lets you choose from more than 30 appliances, add a custom one, set a runtime goal from four hours to 72 hours, and see whether a proposed power source fits. It runs the calculation in the browser with no account and says nothing is uploaded or stored.

A free browser calculator that estimates the running watts, starting watts, runtime, and generator or power-station size needed for an outage.