Puget Sound Electric here in Western WA has a very nice feature showing usage by hour by day (using their smart meters). We live in a relatively small home, and do not use electric heat. Yesterday our "vampire draw" was about 0.5 kwh per hour (12am to 5am -- nothing really active). Once we got up, fired up the coffee pot, and lights, etc. we used 1.3 kwh from 6am to 7am. Pia looks like a good UPS for standard appliances, but as a whole house solution... Folks really need to understand how their home would work using a combinations of Pias. For us, we spent about $1k for a Westinghouse 9,000 kwh generator which runs on propane, and I put in the fairly inexpensive breaker and lock-out in our service panel. Costs were well below $2K. When our power goes out (which it does A LOT), simply fire up the gen, shut down all the high amp circuits in the house panel, and switch service panel input to the gen. Takes less than 5 minutes, and everything works apart from some high amp devices which we can easily live without short term. Having a good backup is important -- moreso with the power system strained and more "once a century" events.
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