An interesting article on the movement towards e-bikes and hacking/ converting your personal bike. While I prefer pedal power alone on my bike due to the non trusting of the electrical grid I give these inventive minds a one-up..
While some sort of auto-powering is worthwhile as I get older I would personally use a small gas/ ethanol motor for assistance if I were to want this availability and have a need for it. I have seen several of these and have thought of a conversion for the dumpie bike as time allows. But alas one of the many yet unstarted projects that Trash has contemplaed
Check out the article here and then check out this video for what I am also contemplating