Your solar system is sized by how much electricity you already use. The goal after your installation is to reduce your electrical charges to zero or next to zero every month. This video will discuss what you can expect on your solar electric bill.
After installing an appropriately-sized solar system, most residential electricity bills will be reduced to zero, or next to zero.
While still being connected to the electrical grid, however, homes will likely still see a delivery charge of around $10 to $15 each month.