Inverter + E/I showing 0 values for Power and Current A and B

[aarondrabeck]

I am seeing 0 values for Power A and B. I am expecting to see the values here for Line 1 and Line 2. Any idea what could be going on?

[WillCodeForCats]

Only one of the two functions of a dual function meter will be exposed to modbus. You can see it's the production function because it says "hardware: production" in device info.

This is not a bug: this is how SolarEdge has chosen implement a dual function meter over modbus.

[WillCodeForCats]

No, as far as I know there is no option to change which meter function it reports over modbus. Ideally it would report both functions as two separate modbus meters, but it doesn't and only SolarEdge can change that in firmware.

You would have to reconfigure the meter as an I/E meter only and then go inside the inverter to psychically disconnect the built-in production CT from the L3 CT input input. I don't know if this requires also removing the production CT, which would also be required if it doesn't have a built in burden resistor (current transformers can be dangerous when operated without a connected load so some have built-in resistors to make them safe).

If you have a utility program (SRECs, performance incentives, etc.), PPA or lease with production guarantees that require a revenue grade production meter then you shouldn't disconnect it. In that case the only option is to get a second meter dedicated for I/E metering.

[WillCodeForCats]

You could also try reporting it as an issue to SolarEdge support or your installer but I don't know if that would get any results.

Basically it needs to internally split and report it as two separate meters over modbus: one Production meter and one Export+Import meter.

[aarondrabeck]

Thanks for the suggestions!

The SetApp is detecting the dual meter somehow and only allows 2 options. Invertor or Invertor + import/export. I could set to invertor and move one of the two L1 or L2 over to #3 I suppose, but I would need both L1 and L2 data to make it useful.

The invertor seems to have a separate way to measure power, because I can remove the whole meter from the config and It still reports output. Also, the L3 production value and invertors production meter are different values, which probably shouldn't be the case...have not figured that out yet.

Anyway, for now I will use a z-wave power meter for home consumption and I can calculate the rest from there. Hopefully SolarEdge can report both values in the future.

[WillCodeForCats]

Correct the inverter can show production without the meter, but the meter is a "revenue grade" option. It's more accurate. The inverter can be ordered with or without a revenue grade meter built in. If it's ordered with it comes with a special internal CT wired to the L3 CT input for the higher accuracy production metering.

[ixs]

For what's it worth, current SolarEdge systems seem to support both Input and Output values via modbus.
Tested with both the Inline Meter MTR-240-3PC1-D-A-MW as well as the Connection Meter with Modbus Connection SE-MTR-3Y-400V-A 100A.

Home Assist sensors:

SetApp configuration view:

I think we can probably consider this topic resolved successfully.