I didn't realize PG&E comes out and does a physical inspection.
When I installed my solar panels in 2012, city inspected, then PG&E came out to give me a bidirectional power meter and went on line.
When I had the 2 PW installed in May this year, the installer turned it on to check its operation. I left it on, city came to inspect some weeks later, all was good, except had to install more smoke detectors and CO detectors as the upgrade exceeded the amount where I would not have to have added them, perhaps under $1000. So, he said to send him pictures of all those installed, separate from PW. Same day I installed everything sent him pictures and passed in a few days without him coming back out.
PG&E never came back to check on battery.
So, If you have the whole system installed, it will get checked by installation crew make sure it works. I would check how much the battery is charged and on good sunny days I'd turn on the solar part and main break off so solar can charge batteries and house. Depending on how fully it gets charged first good day and how much house uses after sunset to next day when solar can take over again, I'd keep using it in self generation mode. And, if you have to you just turn on main breaker and perhaps solar breaker off, maybe.
PG&E only came out to swap meter for me the first time. Didn't check as the city is in charge of inspection, not PG&E.
The whole process went through power company in the first place for their engineers to see if any transformers needed upgrading, nothing more.
Get an early start.