Nameplate reader
Point your phone at the rating label on any appliance. You get the label values as printed, running watts computed from them, an estimated start surge and hours per day (each output labeled read, computed, or estimated), and one tap to drop it into the solar calculator.
Why this matters
Guessed loads are a classic way to end up with an undersized system. The rating label is the truth, but most labels give volts and amps, not watts, and none of them tell you the start surge or how many hours a day the thing actually runs. This reader does that arithmetic and labels every number as read from the label, computed, or estimated, flags the surge that sizes your inverter, and keeps a running list so you can walk the house with your phone and land in the solar calculator with real numbers. For the whole system at once, take the list to the planner.