I've been waiting on Powerwalls from late 2016 referral program. Finally got the call in March 2018 that they were ready for me to do my own site survey. I did that right away and have yet to getthe survey design back. Just today after emailing a few times for an update I received this email from my sales guy: "All Powerwall projects are on hold effective immediately due to Powerwall inventory constraints. We will be in touch with you when we have any sort of updates." So much for ramping up Tesla Energy division.