All Sites Reviewed 10 MW , 19982001

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All Sites Reviewed 10 MW, 1998-2001

• Project Location Capacity (MW)
• Riverside County, California 190
• Kern County, California 224
• Logan County, Colorado 30
• Weld County, CO Laramie County, WI 16
• Buena Vista County, Iowa 193
• Cerro Gordo County, Iowa 42
• Worth County, Iowa 80
• Gray County, Kansas 112
• Lincoln County, Minnesota 262
• Pipestone County, Minnesota 10
• Madison County, New York 42
• Gilliam County, Oregon 25
• Umatilla County, Oregon 109
• Wasco County, Oregon 24

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All Sites ReviewedContinued

• Project Location Capacity (MW)
• Fayette County, Pennsylvania 15
• Somerset County, Pennsylvania 10
• Culberson County, Texas 30
• Howard County, Texas 28
• Upton County, Texas 350
• Pecos County, Texas 402
• Taylor County, Texas 150
• Carson County, Texas 80
• Walla Walla County, Washington 180
• Iowa County, Wisconsin 30
• Kewaunee County, Wisconsin 11
• Carbon County, Wyoming 133
• Bennington County, Vermont 6

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View Shed and Comparable

• View Shed defined as properties within a 5 mile
  radius of wind farm
• Comparable community selected through
• Assessor Interviews
• Demographic Data from U.S. Census

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Sales Data Used for Analysis
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Property Sale Price by Sale DateSample Buena
Vista, Iowa 1996-2002
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Property Sale Price by Sale MonthSample Buena
Vista, Iowa 1996-2002
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Property Sale Price 6-Month Trailing Average
Sample Buena Vista, Iowa 1996-2002
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Simple Linear Regression on Sale PriceSample
Buena Vista, Iowa 1996-2002
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3 Case Studies

• Case I
• View Shed vs. ComparableAll Years
• Case II
• View Shed OnlyBefore vs. After On-Line Date
• Case III
• View Shed vs. ComparableAfter On-Line Date

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Regression ResultsCase I Summary
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Regression ResultsCase I Summary (continued)
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Three Cases Summarized

• Case IIn 8 out of 10 cases, view shed property
  values grew faster than the comparable.
• Case IIIn 9 out of 10 cases, view shed property
  values grew faster after the on-line date.
• Case IIIIn 9 out of 10 cases, view shed property
  values grew faster after the online date than the
  comparable.

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Sample Site ReportBuena Vista County, Iowa

• 750 kW Zond wind turbines 1.5 miles east of Alta,
  Iowa
• Source NREL--PIX number 11513. Credit Waverly
  Light and Power

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Buena Vista, Iowa Project Location
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Comparable SelectionBuena Vista County, Iowa

• Demographics from U.S. Census 1990, 2000
• Buena Vista County Assessor Interviews
• Spencer City and adjacent townships in Clay
  County (to the north) as used comparable to Storm
  Lake area.
• Comparable has higher property values due to
  proximity to recreational lakes. However, the two
  areas property values have risen at similar
  rates.
• Similar predominate business mix, productive
  value of Clay County land may be slightly higher.

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Comparable Selection DemographicsBuena Vista
County, Iowa
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Regression ResultsBuena Vista County, Iowa,
1996-2002
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Additional DetailsBuena Vista County, Iowa

• According to the Buena Vista County Assessor
• 100 percent of Alta City properties have views of
  turbines
• 75 percent of Nokomis Township properties have
  views of turbines
• 5-10 percent of Storm Lake City properties have
  views of turbines
• All waterfront properties on the southeast side
  of Storm Lake can see turbines when looking
  northwest
• Two cases analyzed
• a) Viewshed without Storm Lake City
• b) Viewshed with Storm Lake City
• Storm Lake City has a population of approximately
  10,000, while Nokomis Township and Alta City have
  a combined population of approximately 2,000

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Summary

• Statistics do not support claim of negative
  property value impacts from wind farms.
• Property database is complete through 2002.
• But, to maintain credibility database should
  a) be continually updated, and b) additional
  analysis performed.

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Contact Information

• Hardcopies of The Effect of Wind Development on
  Local Property Values are available from REPP
  for a nominal fee.
• A pdf version can be downloaded for free from the
  REPP website
• For more information see
• www.repp.org/wind