You’ve come to the right place.
This doesn’t look too far off. I think there are a couple of IoTaWatt configuration issues. The reason your mains may appear to be tracking your solar is that possibly you haven’t checked “allow negative power value” for the two mains inputs. If you don’t do that, exported power appears to be imported power and shown as positive. I see you have a “>0” filter on one of your mains, so maybe you do have the that box checked, but double check that it’s set for both mains.
You solar appears to be correctly installed with one CT on one of the two conductors from the inverter, but you need to check the “Double” box in the input configuration menu because that is a 240V circuit. I see that you have a “+inp” input process configured for the solar, but I don’t know what input you are adding. No matter, read on.
Your Emoncms input configuration should look like this:
where the mains1 process list is:
and the solarhouse process list is:
You can use your own feed names, but those are the default names that the My Solar and My Electric apps use.
To recap:
Insure IoTaWatt mains have “Allow negative Power Value” checked.
Insure the Solar_House input had “Double” checked.
Setup the main1 input process list in Emoncms as above.
Setup the housesolar input process list in Emoncms as above.
Use the default configuration for My Solar.
Let me know how you make out.