Maybe, this does not look like much of an idea, ... but what if?
Concept of a SoLar tricycle conversion kit
Bicycles are standing around, most of the time. So why not use this time to recharge it? When going around in a car is no longer the most economical option, an e-tricycle can becomes quite attractive. Now, add the “SoLar tricycle conversion kit” and you don’t only have a roof over your head, it also charges wherever you go.