One horsepower equals 746 watts.
NASA rates the average long-term power output for a male adult exercising at a comfortable pace as 75 watts, or about 1/10 hp.
One hour of pedaling, treadling, or cranking equals 75 watt-hours.
The Human-Powered Home: Choosing Muscles Over Motors by Tamara Dean
Gabriola Island, BC, Canada: New Society Publishers, 2008
ISBN: 978-0-86571-601-8
shows you how to use that power with plans and projects from converting an electric sewing machine to treadle power to generating electricity at home or on your bike. She introduces you to human power projects all around the world like Maya Pedal which makes a variety of bike and pedal powered equipment in concert with Boston's own Bikes Not Bombs. She shows you water pumps, agricultural cultivators, food processors, juicers, blenders, grinders, mills, lathes, saws, and washing machines that are all operated by human power.
There's a lot you can do with your own power, if only you use it.
Bike iPod charger
http://geektechnique.org/...
David Butcher's Pedal-Powered Prime Mover
http://www.los-gatos.ca.us/...
Human power Trainer and Human Power Generator
http://www.windstreampower.com/
Convergence Tech's Pedal-A-Watt
http://www.econvergence.net/...
David Sowerwine and EcoSystems recumbent bicycle generator for Nepal
http://www.ecosystemsnepal.com/...
Comprehensive curriculum for using the generator in a classroom
http://www.need.org/...
[pdf alert]
Academic paper on three decades of work on human power and the Human-Powered Flywheel Motor
http://130.15.85.212/...
[pdf alert]
Treadle pump
http://treadlepump.blogspot.com/ and plans at http://treadle.pump.googlepages.com/...
KickStart pump from Kenya
http://www.kickstart.org/
pumps
Universal Nut Sheller
http://www.instructables.com/...
http://www.thefullbellyproject.org/
David Temple's push mowers and sweepers, wheelbarrows and carts
http://www.peoplepoweredmachines.com/
Hand-cranked blender
http://gsioutdoors.com/...
Man versus machine wooden bowl turning contest
Gandhi spun thread for khadi cloth an hour each day. It was an example of swadeshi, local production, and, for him, the heart of satyagraha. Muscle power is solar power. Employing these human power devices can be a solar swadeshi.