Hi Moose, Tesla put me onto Bradford Solar and I was quite impressed with the installation.
The hot water is instantaneous gas, but I will probably upgrade it to Solar hot water later.
melo, because we were building the house, we had the luxury of having all the wiring inside the walls. We have an external access shed behind where the Powerwall and inverter was installed. We left one of the sheeting off until the installation was completed.
Our hot water system is heated from 9 to 11 am. It usually takes about an hour to heat and on a sunny day the solar generates enough electricity to cover without drawing from the Powerwall. The sparkies, who installed our system, installed the timer in the switch box. They also set it up so if there's a blackout, the Powerwall kicks in. It powers the main fridge and the lights on the side of the house that we live in. There are limitations as to what you can power up and to the charge there is left in the Powerwall. The 7 kwh (more like 6.4) is not a lot. Once they double the capacity with Powerwall 2.0, it will make a difference. Not sure what the upgrade would cost or how you go about an upgrade.
Our biggest user is the spa pump and heater, which is set to operate from noon to 7 pm. Again on a sunny day the solar generates enough for the 2 to 2 1/2 hours it takes to heat the water. After 4 to 5 pm, it will draw from the Powerwall.
We are keeping a daily log of what we draw from the grid and what we pump back into the grid as well as comments as to the weather and what is using our power, ie. we have a commercial dryer so we wash clothes on a sunny day!
By and large, our Powerwall charge covers our overnight usage. There is only the two of us in the house, but we do have 3 fridges, a few night lights, security system.
We built the house as owner builders and still use a fair number of power tools, which don't seem to use up a lot of electricity. Heating elements are the big users. Cooktop is gas, but the double oven is electric. The single drawer dishwasher we put on during the day. All lighting is LED.
So in a nutshell, you have our lifestyle.