The amount you save on your monthly SMECO bill depends on how much energy you use and how much you produce.
Do you own or lease your PV system? If you purchase the system, you will reduce your electric utility bill, but you will have a cost associated with your solar system, so it could be a very long time before you break even.
If you lease a system, you will receive a monthly electric utility bill, along with a monthly bill from the solar installer. You may save on your utility bill, but the savings may or may not cover the monthly lease of the solar panels.