Los Angeles DWP invoices every two months. My first two month invoice fully on Tesla Solar/Powerwall arrived today, and it worked out just as I hoped. Due to my home orientation and roof gables, I was limited in the amount of solar panels I could install. Even though the solar system only produced about 36% of the total electricity used, 88% of the High Peak usage was eliminated. Tesla's time-of-use algorithms nailed it. My invoice was 54% lower than last year’s August invoice. Hurray for Tesla, and my thanks to them for sticking it out through the tough LADWP and City of LA regulatory maze.