Watching my power Generation and Power Bill

After watching power Bill and monitoring my power generation from my new panels I have the following things to report.
1. We had our Solar Turned on during the shortest days of the year here in Florida and our Sunny Day Low is around 30kw/day. This is about 8kw/day lower that is needed so we expected a BILL from Duke. 

2. First Bill after turn on. Used 919 KWH  Received from power Company 435KWH.  Which means we Generated 484KWH and only were charged for 435 used. Bill =$78.98

3. Second Bill. used 910KWH. Received 495KWH. Which means we Generated 415KWH. Bill $68.45

4. As you can see our Bills have went down....and we are generating Power but not enough to get to ZERO bill....or start Generating a Credit. 

5. I am getting Consumption Transformers installed and this will help to understand exactly what is being used by the HOUSE and what I will be able to understand my usage as.