About this Project

I built my first pedal-powered computer back in January 2010. I built it for three reasons:

  1. I wanted to exercise for long periods of time each day without sacrificing my free time,
  2. I wanted to engage in a stimulating activity while I exercised, so I wouldn't be bored, and
  3. I wanted to do something useful with all the calories I burned every day, so all those watts wouldn't go to waste.

I have been using one almost every day since then.

Over the years, I've been able to generate a significant amount of useful energy:

year total electricity generated (watthrs) average electricity generated each day (watthrs) average time spent pedalling each day
2010 33,070 153 2 hrs, 35 min
2011 51,702 155 2 hrs, 34 min
2012 60,768 177 3 hrs, 8 min
2013 68,488 192 3 hrs, 7 min
2014 54,055 150 2 hrs, 46 min
2015 44,146 121 3 hrs, 3 min
2016 52,191 143 3 hrs, 3 min
2017 55,521 152 3 hrs, 30 min
2018 76,390 210 4 hrs, 38 min
2019 60,469
264 5 hrs, 7 min

Of course, a pedal-powered generator is very unlikely to meet all your energy needs. I can't generate enough electricity to cook my food, run our refrigerator, or heat hot water. I currently generate about 3% of the total electricity my wife and I consume. That may not sound like much, but it's enough to run my home office plus recharge most of the battery-operated equipment we own.

I created this site to share what I've learned using a pedal-powered computer. If you have experience using one, or want more information on how to get started, I'd love to hear from you. You can reach me via the contact form. Thanks for visiting,

Jim Gregory
Bikes At Work
Ames, Iowa USA

RSS feed