So I am getting very close to pulling the trigger on a solar system for our home. The question now is if we want to do Powerwalls now or later. The biggest factor with the "now" side of the coin is the SGIP rebate. One installer is telling us that for 2 Powerwalls its a $9310 rebate. He claims this all works out to a net of only $4690 for a $20,000 gross install on two Powerwall units if we install with our solar (I am not sure if he is double-dipping the 30% federal rebate plus the SGIP or if you can even do that). $20K gross sounds like a LOT for 2 Powerwalls as well. My concern is the likelihood of these rebates running out before we can actually claim them if we pull the trigger on this before the end of the month. Our install would probably take a couple of months, since I think permitting alone is 4-6 weeks in my town. (yay, local goverment) Any ideas on how fast the steps are running out of money and how realistic it is for me to get one? SCE is currently in Step 2 according to this: https://www.selfgenca.com/home/program_metrics/ Tesla Energy is quoting a much lower price for Powerwall installs (only $1700 for the install after the cost of the powerwall). However, I am not sure how accurate that is to put in the subpanel for the battery backup since they don't actually do a site survey until you sign up ("for your protection" they said ). They were very cagey about the SGIP rebate when I asked and implied I wouldn't get it. The other company I am looking at has installed around 600 Powerwalls apparently and will process the SGIP paperwork for you (which sounds like a big bonus). They do have them in stock and could reserve 2 for me, but I have to sign up by the end of the month.