I'm sponsored by the solar company Goal Zero, and they were gracious enough to install panels on my van and a nice battery system for the inside. I have lights and a fridge inside the van. And of course I had panels installed on my mom's house.
I live out of my van, which gives me a first-hand appreciation for power and lighting. A few years ago, I rebuilt the interior of my van to include solar panels and a battery that powers LEDs for lighting and allows me to charge my phone and laptop.