At the Gigafactory event I spoke with someone in the upper levels of Tesla Energy (no I won't reveal their name, but definitely an authoritative source) who told me that they have received about 160,000 Powerwall reservations in the US since the Powerwall launch in May 2015. I was amazed by the magnitude of that figure. Tesla Energy has done no real marketing or advertising. Of course a Powerwall "reservation" consists only of someone completing and submitting the short form at Reserve your Tesla Home Battery and no payment of any kind is required. Still I think 160,000 is an impressive number. I have no information on Powerwall reservations outside the US or about the Powerpack. My Powerwall will be arriving at my house this August, as my 10kW solar installation has finally started!