admin answers:

What agent?

These kind of deals are done directly between the manufacturer and the purchaser. ANy “agent” is probably an employee of the manufacturer, and makes a salary with the probability of a year-end bonus based on company profits.

admin answers:

The shut off speed depends on the design of the turbine. They vary.

If you can get the model number, the manufacturer may give you more information.

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admin answers:

Sun heats the surface of the earth unevenly.

Uneven heating give rise to large scale winds.

Wind turbines are strategically placed to capture as much wind power as they can.

The wind blows on propellers that are attached to the shafts of electric generators.

So the heat of the sun is converted into wind energy, then that wind energy is converted into the rotational motion of the shaft which is ultimately converted into electricity (and heat).

admin answers:

You can use a bicycle wheel, with blades mounted, to drive a bicycle generator. Fashion blades by cutting large diameter PVC tubing lengthwise (splitting it) on a taper so the blade is thinner at the tip. You can make two blades from one piece of tubing if you cut it properly. You can mount them to the spokes, between the hub and rim.

I haven’t seen these bicycle generators around for a while, but I assume they’re still available, with a small knurled wheel that drives from the rim of the wheel. The generators have very good output at low rpm, so they are ideal.