If you think about it, how many people go the gym to work out. What if you could power your home by riding a bike for 60 minutes a day. The concept is easy, execution; not so much!
As you can see in the video below he charges a single battery after riding for 60 minutes. Now a single battery isnt going to charge your whole home for 24hours the way we Americans go through electricity, but its a start! It can also work for emergencies. Most important part here, you can charge your batteries without the noisy generator that all your neighbors will hear!!!
We have seen this down a couple of times and a quick internet search will find several homemade bike generator projects. I really like this one and I hope it will get you thinking!