Here is my situation. I have a newer efficient house with a small 2kw Sunpower system. The system connects to my 200A panel with a 100A subpanel basically running everything in the house outside of the EVSE, AC and fire alarm. Since I am not producing enough electricity, I have to basically buy from PGE but I do net meter. Tesla (and many other installer) already said they won't touch the current system but they would run a system in parallel. Instead of just adding their basic package, which I believe to be about 2.8kw. I actually have this idea and I am not sure if it will work. THe current system faces SW and the new system would face NE 1. I will leave the current system to net meter with PGE. 2. With all the wild fires that are going (Tesla did force me to sign up with one too), I am thinking about 1 backup battery. I know the battery would not be able to charge my cars or keep my AC running. I am perfectly fine with that. 3. Since a battery will basically kill my net metering, it really doesn't make economic sense. 4. I am thinking about routing the electricity from tesla solar to the battery and subpanel only. The panels should produce more than enough daily to charge the battery in full and provide all the power to the house. I don't know if the gateway would allow power to be full from the main panel if I need it. I am pretty sure i am not allowed to pass the power back to the main panel since it would result in net metering? PGE is changing their peak pricing to I think 4PM-12PM and off peak from 12AM to 4PM. I forgot the exact tiers are, but it's around there.