Harvey: That is so cool! Someday, I hope to live "off the grid"
It seems so do-able, but not really in suburia for me now.

I'm sure you are more familiar with EV. I have some questions.

I can (and do) ride my bicycle to work. It is about 15 miles. Sometimes, I don't feel like pedaling.

There are significant grades on my trip to/from work.
The surface is concrete bike path VERY few road crossings. I cannot use a gas engine on the bike trail. I don't think anyone would notice or care about electric power. I can have a charging facility at each end.

What is my best choice? DIY electric 2 wheel scooter? DIY eletric bike conversion? Couple of optima yellow-tops and a starter motor hooked to my skateboard?!
Rocket powered roller blades?

Thanks, Stephen