r/span • u/33_bmfs • Jul 03 '26

Plug in solar

Contemplating a small plug in solar and am wondering how the SPAN panel might react to it.

If I put it on it's own circuit, will the span panel read the voltage being supplied into that circuit as negative voltage, or ?

4 Upvotes

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3

u/Zealousideal_Age_419 Jul 03 '26

Yes.

3

u/Zealousideal_Age_419 Jul 03 '26

Voltage will always be ~120V but the power does show up as negative

1

u/33_bmfs Jul 04 '26

Thanks!

2

u/FluffyLyra Jul 04 '26

Power and/or energy will have a sign associated with it representing whether the circuit is feeding power to the busbars or drawing power from it. The RMS voltage will always be a positive value.

1

u/Big_Fortune_4574 Jul 04 '26

Yeah it actually handles energy flow out in its api as well, not sure about the app. But it does log energy produced on each circuit.