Well, I decided to take the plunge and get the solar + Power Wall system from Tesla as I believe in the company and mission even though the Solar Panel System output was quoted at a higher price than a local Solar company. I'm just sharing my experience so far. Everything was going smoothly but there have been a few rough bumps and delays.
Here's my timeline:
12/7/2018 Had the in person consultation with a Tesla Energy Rep. The design and planning took a few weeks. I decided to get a 7.475 kW system with 2 Power Walls.
2/6/2019 Signed all the paperwork for the system.
3/20/19 Installation of the Solar Panels and Power Walls (PWs): Even though it was a rainy day, the installers came and installed the solar panels. They worked diligently from 8AM to 4PM and turned off the power for 2 hours. The Solar City installer guys were courtesy and explained everything as they were installing panels. They installed a new breaker box, inverter, and the gateway. Unfortunately the inspector for the PW mounting brackets couldn't come out that day so they couldn't mount the PWs. So they install crew finished up and I had to reschedule another day for the inspector to come out.
4/4/19 The inspection for the PW mounting bracket passed. Took about 2 hours as the Tesla representative had to look over the system.
4/8/19 The PWs were finally mounted installed and tested. This took about 4 hours and they required turning off the power for an hour or so as there were issues connecting the gateway to my router. When the power was reset my router didn't boot up correctly so I just power cycled it.
4/13/19 The city inspection for the system was scheduled on at 8am on Saturday. The Tesla representative came out about 30 minutes prior to the inspector to make sure everything was working. Unfortunately the system did not pass inspection. I was not there for the inspector as I was nervous and the Tesla representative said that the wiring did not pass the inspection. The rep commented on how the city inspector had the plans for the system and even gave its approval but I guess when the inspection occurred they changed their minds. I was disappointed as I had heard it would take another 5-6 weeks for PG&E to come out to inspect the system after the City Inspection approval.
And that's where I am at currently. The installers are coming back on 5/2/2019 to bring it up to the City inspector's specifications.
Hopefully it should be smooth sailing. I'm hoping to have the system up and running by June if possible as I want to install an HVAC soon as it's been 90F the last few days.
07/15/19 Finally got the PTO to run the system. Haven't even peeled the plastic off the Power Walls yet but the solar and PWs are up and running.
07/17/19 The 7.4kW system maxes out around 5.6 kW.