I have always thought that it would be a great idea to have the stationary bikes at gyms hooked up to a generator of some sort and help power the building while members got a workout. Well, apparently I wasn’t the only one who thought so. Unfortunately, it is a fairly complicated job, at least for a novice or moderately experienced DIY-er. But if you have the know how, it is a truly cool project. As always exercise extreme caution when working with anything electric and know your limits. Call a pro if you are unsure!