I don’t understand how to read my electric bill.

Your home will first use the energy your system produces, so this used portion will not be recorded as it is not delivered to the electric grid nor is it seen by our meter. When your panels produce more power than your home needs, at any given time, the excess is fed into our electric grid. This credited excess is what you see as Received kWh on your bill and delivered kWh is the amount of energy delivered to you from MEC. (Total Billing kWh = Delivered kWh minus Received kWh)