After finally getting my Solar and Powerwall system activated by the local electric company. I've been toying with the Tesla App for the past week. Currently, I'm using the Tesla App 1.26.0 on an Android phone. We have a 7.4KWh Solar array and 2 Powerwall 2 battery packs.
I noticed that on the "Configuration" page, I was able to alter the settings to pull from the Powerwall units during the evening. As a test, I attempted to set the Powerwall reserve to 50%.
This seemed to work OK, until the following day. During regular daylight hours (located in Hawaii and a bright sunny day). The solar panels on the roof were only providing power for the household, not charging the Powerwall systems. Solar Panel activity for that day shows a near constant power usage (from solar) of 1.2 to 2 KWh. However, there was a noticable spike of Solar energy production at approximately 2:00pm. Solar production shot up to 3.7KW and the Powerwall showed that it was charging for about 30 minutes. Then, the solar capabilities simply reverted to supplying the house and the Powerwall started to charge from the grid.
Obviously this is not ideal.
If I go through the house, and turn on everything that uses electricity (stove, 6 split air A/C units, water heater, TVs, game consoles, computers, etc), my energy usage will spike to 5.5 KW and is shown to be completely covered by Solar production. If this is possible, then why isn't the Solar array charging the Powerwall batteries during the day? I realize I have just recently activated my Solar array and Powerwall system. Is this something that irons itself out over time?
Beyond this, there are a few smaller issues like: The self signed certificate that the Powerwall's embedded web-server uses is not able to be imported into a Chromebook laptop. The Tesla app, when downloaded to a Android capable Chromebook does not function (black screen). Currently, the Tesla App shows "1x Powerwall" at the bottom of the screen, when I have 2 powerwall units installed.
If any longterm Powerwall users have some good advice (or URLs) on dealing with these issues, I'd be most grateful.