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Get data from PVWatts

PVWatts uses the term "DC rating" for the more customary  term "kilowatt peak" (kWp). 

Go to and select your location. On the page beginning with "Station Identification" enter a DC Rating (kW) of 1 (one).

PVWatts system spec

Click 'calculate' and you get the results page. The right half of that page will look similar to this (with different values, obviously) :

PVWatts results

The value to use in PVCalc is the annual AC Energy (kWh) value, it is the annual AC energy produced per kWp (kilo Watt peak).

PVWatts PVCalc