Facebook has even more fake accounts than LNKD.
I know because I'm on FB.
They need to weed out the fake accounts, so you can make your money back.
Spread over 20 years it's a good deal. The use is to store energy from solar panels to use at night, instead of selling it into the grid at cheaper wholesale rates. This will change the ROI for solar big time.
I posted this subject line months ago--Tesla batteries could be the pot of gold...
Storage batteries are cheaper to make than the ones for the Tesla cars, as weight and size are not a big factor.
The market for electric storage for solar installs is UNLIMITED.