I have learned so much in the past few hours reading through some recent posts. I appreciate all of you who provide insight and feedback. Even more so, I appreciate those that take the time to read through my crazy thoughts below and try to answer my questions. I am hoping to get a 4 kW panel system and 2 or three Powerwalls from Tesla ASAP. Tesla did the site visit last week, but were unable to measure my roof so they are coming back next week to finish up prior to finalizing quote. I thought I had more control over how the system would work, but from reading posts, it seems there is a standard way for the system to be installed and run. The reason I am doing such a small solar job is that Tesla will not install on my barn and there is limited south facing roof surface area on my house, so I wanted to avoid paying to put solar on east and west facing roof that either get shade or require removal of 20 year old oaks. I figured I could have the system designed for additional solar (up to 8kW) to be installed later myself (maybe use the tax credit money to pay for the additional panels) with minimal permitting and design since it would just tie to existing system. The purpose of the Powerwalls is for back-up power for hurricanes. I want to keep the house running as close to normal as possible (no dryer or range needed but everything else to run) for comfort. I have a 200 amp main breaker on my main panel with all 40 circuits in use with 625 amps worth of breakers (150 of which were added after original house permit without permits) and two sub panels fed from the main panel located 20 plus feet from the main panel. I think I need 6-8kW solar system and 2-3 Powerwalls to meet my needs, but I worry Tesla will push me to too many (due to house electrical loads) or too few Powerwalls (due to solar system size they sell me). I typically use 50 to 80kW/day, but could get by with 30kw/day in backup power mode to keep quantity of Powerwalls low. Power here costs $0.11/kW up to 1,000 kW/mo and $0.13/kW over 1,000 kW/mo (same rate day and night). My daytime (sun hours) energy usage is as low as 1-3kW/hr. I'm concerned I can't upsize solar system too much or I wont be able to use it all (if no net metering) but if I go too small I cant generate enough energy to run my house when the power is out for days. I have lots of questions: 1. If I am doing Powerwalls and live where net-metering is available, does Tesla do net metering or do they skip that and just deplete the power stored? Probably tied to the same question, is gateway in lieu of the net metering setup? 2. Does my solar system size of 6-8kW and Powerwall quantity of 2-3 make sense? 3. Will Tesla design for future solar expansion? Are there any considerations I should take into account, like inverter size? 4. Does Tesla provide separate inverter with the solar panels or use an inverter built into the Powerwall? 5. Does anyone have a Tesla created electrical plans for a similar setup they can share with me? 6. Does it seem I might need a bunch of extra panels due to my setup? From reading the posts about generation panels, it seems a reduction in main panel disconnect. I don't think I can reduce main breaker knowing we may want to add traditional load in the future (2nd electric car and pool equipment), but re-running wires seems like it could get time consuming and costly. 7. What happens if the load during outage exceeds the Powerwall max output, does it just shut-off power to everything? 8. Is there a conversion for kW used in one hour period to a max load (double?), my high usage rate per hour seems to be 6kW/hr. 9. Do I need to let Tesla know there are several circuits added that were not permitted or is that just handled on the electrical inspection? I can share the permitted plans from when the house was built. 10. How crazy am I for trying to customize my system to my situation? Should I just wait for Tesla to tell me what I should do?