Yeah, I don't want to sound pessimistic, especially since I've been using an e-bike for the past 5 years on occassion... Much less the past 2 years but nevertheless, I did put about 3000+ miles on my e-bike while commuting to work in the winter. I know how long it takes to recharge the batteries, I know how much the elevation profile affects the range and I also have some experience in using solar panels and know that the best way to get the juice is to be stationary and change the angle so that the panels are always optimal towards the sun. Those aspects mean you lose precious day hours that would be normally spent pedaling.