Estimate the total land requirements for wind farms generating an amount of electric  energy equal to 2008 US annual consumption (4.4 × 10 12 kW e h) if individual units are  rated at 2 MW e , have a rotor with a 100 m diameter, and are spaced 3 diameters side to  side, 10 diameters front to rear in giant contiguous wind farms having an annual average  capacity factor of 25%. Compare the required area to that of North and South Dakota  (combined land area of 145,000 square miles), which have some of the best US wind  resources.

Power System Analysis and Design (MindTap Course List)
6th Edition
ISBN:9781305632134
Author:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Publisher:J. Duncan Glover, Thomas Overbye, Mulukutla S. Sarma
Chapter11: Transient Stability
Section: Chapter Questions
Problem 11.19P
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Estimate the total land requirements for wind farms generating an amount of electric 
energy equal to 2008 US annual consumption (4.4 × 10 12 kW e h) if individual units are 
rated at 2 MW e , have a rotor with a 100 m diameter, and are spaced 3 diameters side to 
side, 10 diameters front to rear in giant contiguous wind farms having an annual average 
capacity factor of 25%. Compare the required area to that of North and South Dakota 
(combined land area of 145,000 square miles), which have some of the best US wind 
resources. 
 Discuss the factors that would favor or impede the practical implementation of a 
Grand Midwestern Wind Farm plan to provide the bulk of US electric energy by the 
year 2050. 

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