@suzanna Ned, ask your utility whether there's any chance that your electric meter could be wired in such a way as to charge the power to run the meter (always running) to your account? Several other threads on this subject by the way.
I had the same issue. It does not seem fair that your turn off the breaker and don't meet the goal. kind of discouraging
If you flip the electricity completely off look to see if your meter is going around. If it is not there is no reason whatsoever that you should not meet your goal. If you do not meet your goal somebody has some explaining to do, not you.
My provider, (PG&E) did confirm there is a minimum amount of energy that will always be indicated since energy is still running the meter. No way to get 0 usage.
I always get 0 shutting it off