Many thanks Robert for the swift response. I may have misinterpreted the bit on apparent power being calculated on a previous forum post: How do I measure Apparent and Reactive power with an EmonPi? where you said “emonLib, which is what the emonPi uses for the power measurement and calculations, doesn’t attempt to measure the reactive component. It only computes the average real power, rms voltage and rms current; and it’s from the latter pair that apparent power is calculated.” I will need to look into updating the sketch to see if I can do this myself. Thanks again.
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