The world needs a new source of energy, an unspillable source.

How much energey can the following Savonius Wind Turbine generate?

Take a look at this:
http://www.re-energy.ca/pdf/wind-turbine.pdf
Approxamatley how much energy can this generate? I probably won’t use it in real winds, just with one of those fireplace pumper things that you open and close and it shoots air out of the little nozzle, if you don’t know what I’m talking about then don’t bother… >.>