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What is a reasonable estimated "payback" period for a wind turbine?

Determine the amount you paid on electricity bills before you installed your system. If your system offsets all your electricity, once you know its cost, you can divide that by the annual bill and determine how many years it will take to pay off. If you are only offsetting part of your use, you will need to adjust the calculation accordingly. Windustry has a wind energy payback period worksheet  that goes into more detail, and the National Renewable Energy Laboratory has a calculator and a paper on the economics of grid-tied small wind.

 

Cole Gustafson, North Dakota State University
Irene Shonle, Colorado State University

NDSU, Dept. 7620

P.O. Box 6050

Fargo, ND  58108-6050

Phone: 701.231.7261

Fax: 701.231.1008

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