I was confused by that at first. If you "subscribe", you "rent" solar panels which Tesla will install, and you will use them to generate electricity which you

I was confused by that at first. If you "subscribe", you "rent" solar panels which Tesla will install, and you will use them to generate electricity which you use. You pay for the electricity that is generated, in place of paying a rental fee for the hardware. It seems unusual, but it's a bit like renting a truck for a very low price (i.e. $20) but then you pay $1.50 for every mile you drive. It's still a little hard for me to wrap my head around, though!