Welcome to the Energy Matters Forums Dazzacarter
More information would be required before any indication could be given about what is going on with your solar power and bills.
Are your bills unchanged since before you had solar power?
How many units per day were you using then, and how many now?
What is the distribution of your power usage - is much of your output used during the day when most power is being produced by your system, or do you use most at night?
How many kWh per day is your system producing?
Is any of your solar array shaded at all during the day, by TV antennae, trees etc?
How much are you being paid per unit of exported electricity?
Have the fixed charges or the charge per kWh imported changed since before you had your system installed?
Do you have any sort of solar system/energy monitoring/logging?