If you have a solar panel installed and monitored on Advisor it will have 2 effects;

1 - It will add to your total Electricity usage on the summary panel. This will mean that the summary panel electricity usage(kWh) will be higher than your main incomer(s) and thus your bill.

2 - Thus it will add to the cost on the summary panel. This means that the cost displayed on the summary panel will be higher than your bill.