Wind Turbine Formulas
(Raw data is taken from RetScreen International and NREL)
Vu is the given velocity at a given height (h2).
Density based on Average temperature in MA (46.95 F) and Elevation in MA (500ft) site calculated from weblink - http://www.denysschen.com/catalogue/density.asp
At is the Area in which the blades cover.
The 1/7 Power equation.
Force of Turbine
Power of Turbine
This is the actually amount of power produced by the size mentioned above.
Payback
It is $3000 dollars / Kw system and 6,000/kw to install that system
We need a 6.3 kw system
In Kw
Inforation from
The utility pays 11 cents per kwh put back into the utility grid
KWH Produced
The Payback with KWH costing .19 Cents = 13.54 Years
The Payback with KWH costing .238 Cents = 10.814 Years
The Payback with KWH costing .285 Cents = 9.033 Years