I got curious myself and called PP&L (Pensylvania Power & Light) and am waiting for a reply on the electric meter calibration info. There are some numbers on the thing that I believe can lead me to relate revs per KWH. Anyhow, got someones name and will pursue this next week if I don't hear anything by tomorrow (Friday). Of course the other option is to calibrate the blasted meter yourself. I've done that in the long ago past. Advertising my age again.
Al