@Sally1952
I would research the best package for your system and how you use energy.
Do you know how much your load is during the day and night?
If you have excess power during the day then the Feed In Tariff will be an important factor.
This needs to be balanced with the daily connection fee.
If you are not home during the day but are at night then you will be buying that power at peak rates. Work out strategies to load shift as much as possible to daytime when you can use your own solar. Things like using washing machines and dishwashers with delays so they run during the day.