admin on January 30th, 2009

The aluminum vanes are constructed from a building flashing roll utilizing the pre-existing bend of the roll in construction. Two 16 ” sections are riveted together to make one vane. The vanes clip on the spokes of the bicycle wheel using a “bent nail” and a bend in the vane. Detailed pictures will be provided [...]

Continue reading about Bicycle Wheel Windmill

admin on January 25th, 2009

Power: 2000 Watts @ 30 mph+   Voltage:  24, 36, or 48 Volt DC operation (specify), 150 Volt, 240 Volt DC, for running AC grid-tie inverters, available at no extra charge.
Diameter = 10 feet or 12 feet     Length = 13 feet+       Cut-in speed 7 mph
Overspeed Protection: Side-furling using inclined tail pivot

Components: Frame with generator and yaw [...]

Continue reading about Dual-Rotor 2 kW Superturbine

admin on January 25th, 2009

The Sun Flow solar system operates as a pre-heater. Its function is to
raise the temperature of the water going into the existing system.
Year-after-year your maintenance-free SunFlow system will go on
providing a substantial part of your hot water needs.
A. Cold water inlet: The cold water line which normally goes directly into
the existing water heater is diverted [...]

Continue reading about Servamatic Solar Hot Water

admin on January 25th, 2009

An easy 200 watts in about a 20 mph wind or so, lighting the four 50 watt car
headlight bulbs you see at Doug’s feet. We get much more power than this in
higher winds. This kind of power output is unheard of for an 18″ diameter
horizontal axis windmill! – the secret? Multi-Rotor technology, made possible
by the [...]

Continue reading about Parrallel Wind Turbine

admin on January 25th, 2009

1. A generator
2. Blades
3. A mounting that keeps it turned into the wind
4. A tower to get it up into the wind
5. Batteries and an electronic control system
………..
When used as generators, motors generally have to be driven far faster than their rated speed to produce anything near their rated voltage. So what you are [...]

Continue reading about DIY Wind turbine

admin on January 25th, 2009

This alternator uses rotating magnets and a fixed stator with handwound 3 phase coils. This design is applicable to wind, water, engine, even human and animal power.
1000 watt wind turbine to help charge the battery bank that powers our offgrid home. It’s a permanent magnet alternator, generating 3 phase ac, rectified to dc, and fed [...]

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admin on January 18th, 2009

Solar panels collect heat energy from the sun. We call this heat solar thermal energy. A simple example of a solar panel is a closed box with a top made of a transparent material such as glass or plastic.

The sun shines through the glass and heats up the inside of the box. This is the [...]

Continue reading about Heat energy

admin on January 13th, 2009

This cast epoxy impeller is designed to provide efficient performance on micro-hydro Pelton wheel water turbines. Power from water increases with head and increases with flow rate but is limited by pipe friction.
Maximum power for any pipe size occurs when the frictional losses in the pipe equals one third of the static head. Any increase [...]

Continue reading about what “Pelton wheel”