Great film about a family that decides to go their own way and cut the cable to the grid.
That's got a lot to do with it. The other factor is that the cheapie "inverters" (most) will not also act as a CHARGER for the batteries."There's a great difference between a real inverter designed for Alternate Energy systems and those cheapie $79. "inverters" you find at Walmart."
Is that why my $79 inverter from WalMart lasted only a month? I used it in my truck for my laptop and phone charger at the same time regularly.