I've had a 6.88 kwh solar system since 2013. On this past July 12 my new Tesla powerwall was powered on (this date coincided with the start of the El Paso Electric billing cycle). Upon receiving my first bill with the powerwall in operation I was stunned to find that my smart meter reported that I sent 885 kwh to the grid for the month when in actuality I sent nothing to the grid as this energy went directly into the powerwall (the powerwalll never charged to 100% as Las Cruces is in the middle of monsoon season and we've had many clouds). My usage figures for the month read as follows: 1,679 kwh purchased; 885 kwh sent to the grid. My belief, and please tell me if I'm wrong, is that the 885 kwh went into the powerwall (I had the local Tesla project manager come out to my home, check out the system, and say that all was well with the system itself) and should have been subtracted from the 1679 kwh purchased. I'm thinking that my smart meter is programmed incorrectly, but being a lay person I'm sort of in the dark as to the problem itself and how to remedy it. Opinions?