An bicycle powered generator is an expensive way to turn human food calories into electricity. In the Middle Ages they raised dogs to run on a treadmill for ho

An bicycle powered generator is an expensive way to turn human food calories into electricity. In the Middle Ages they raised dogs to run on a treadmill for hours, to turn the spit. See https://en.wikipedia.org/wiki/Turnspit_Dog https://en.wikipedia.org/wiki/Turnspit_Dog . That would be a more efficient way to power a generator, since dogs will eat things that humans won't. We don't - because it isn't cost effective. Buy a solar charger instead. A 100W solar panel is cheaper than this pedal-powered generator, and will produce power all day at no extra cost. > How many homes would it power up through the efforts of many gym buffs? Zero. Here is is worked out - http://michaelbluejay.com/electricity/bicyclepower.html http://michaelbluejay.com/electricity/bicyclepower.html . The human won't even be able to heat the shower used to clean up after cycling.