This idea for helping to power an earth house originally can be traced to my sister. She said to me one day, "Why not find a way to power things by using bicycles and such." That was a few years back. I've finally gotten a little time to start doing research on this interesting concept. One has to realize of course that human beings are 'unreliable' sources of power. One person cannot provide consistent power generation for extended periods. But at the same time there is something to be said for contributing power back to the system. And with WLED's or White Light Emitting Diodes, one can now power these to provide enough light for an entire evening using only human strength and ingenuity. And if a person exercises anyway why not 'tap' that energy?

Electrilite-This 3 wheeled vehicle reaches speeds of 40mph, runs on batteries, weighs 300 pounds and holds two people and their groceries. Can also be human powered

Here is another on charging batteries with bike power..

IHPVA-Powering your vehicle with human power. Cars, bikes, aircraft and more. A huge site.

Malnutrition Matters-This non-profit group has created some wonderful human powered products for third world countries.

Pedal Power-Nice little article on using human energy to power systems.

Pedal Power Generator-Contained Energy-Two hours of pedaling will run your freezer for 24 hours. Many other uses.

Poo Power-Who knows if this belongs here. Its kind of a passive way to generate electricity from human waste.

The Brox-This "bike" can carry 250kg and go where larger vehicles can't go.

Twike-Human powered trycycle.

Windstream Power-Two types of human power generators. For education, power backup or exercise.