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Winners
Green Outdoor Sound
Get Household Batteries For Free
Flower pot one way air flow valve
Metodo de Calculo Sistemas Fotovoltaicos: Metodo de Corrientes (Version en Espa�ol)
Simple Wind Turbine
How to assemble a HHO Generator and why it works
Wine Cork Cooling for Laptop
My Horizontal Axis Wind Turbine
Thermoelectric Auto Air Conditioner / Heater
unKISSing my KISS lathe* (des-simplificando mi torno simple)
The Crocodile's Bucket & Chain Water Pump
Walking Beam Stirling engine
Small Wind Turbine Blade (6 Foot dia.)
Wind Lantern: LEDs powered by a vertical axis wind turbine
Stationary Bike Generator from Washing Machine
Simple coke can engine
Prototype Wind Turbine VAWT Home Hydrogen Production
Solar Heating
The Basics Of A Hydrogen Dry-Cell
Biomass Briquette Lever Press
My Second Stirling Engine
Winter HVAC Hack
Lawnmower Power Generator With A Twist
How to Make a Solar Powered Stencil Light Box
Pet Can
Build a fermentation fueled water pump
How to repair and make reliable the diaphragm in a Chinese tankless water heater
DIY Awning
Wind Turbine
Combine stun baton
How to make your mini "Crank Shaft"
Using the cone method to make a half parabolic dish from an 8 by 4 sheet of corrugated plastic
Make a parabolic solar dish from an 8 by 4 sheet of plastic (without too much waste)
My Improvised DC Generator Build
Skylight Blinds
wind powered generator
WVO Prep Tank
PVC pipe blades and rotor for HAWT from scrap.
How To Build A Bicycle Generator
Mousetrap Powered Car
Wall mount IKEA SUNNAN
Model generator test rig. experiments on home made power.
VAWT Lenz type. Stage 1. Converting wind power to rotary motion.
Pencil Incinerated with Electricity
Energy Saving Checklist
coffee cup savonius wind turbine
Fitnerds: Pedal Power Generator for a Greener School
Almost Free Solar Hot Air Collector
Build a coffee cup model wind charger
Solar Dehydrator
Battery "free" bike light.
Canadian Cooler Cooling Contraption
Cut your electrical use for lighting by over 80%
Computer Fan heater
PROJECT-SPARK
Easy large portable woodgas stove
wind turbine
the real $5, web based power and gas meter
$5 Power Meter
Use One Less Battery
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