Detailed Setback Calculations
How much land is lost when setback increased from 100 to 500 feet
radius * radius * 3.1415926535 = area
42,560 Sq Ft = 1 Acre
1000 Acres * 43,560 SqFt/Acre = 43,560,000 Sq Ft
radius of 1,000 Acre Circle = SquareRoot(43,560,000 Sq Ft / 3.1415926535) = 3,680.7 FT
Calculations with 100 Foot Setback
If we add 100 Ft for setback the new radius = 3,680.7 Ft + 100 Ft = 3,780.7 Feet
Total Sq Ft with 100 Ft setback = 3,780.7 Ft * 3,780.7 Ft * 3.1415926535 = 44,904,044 Sq Ft
Total Acres with 100 Ft setback = 44,904,044 Sq Ft / 42,560 Sq Ft per Acre = 1,055.1 Acres
Setback Land not paying higher local real estate property tax = 1,055.1 Total – 1000 Acres = 55.1 Acres
Calculations with 500 Foot Setback
If we add 500 Ft for setback the total area = 3,680.7 Ft + 500 Ft = 4,180.7 Feet
Total Sq Ft with 500 Ft setback = 4,180.7 Ft * 4,180.7 Ft * 3.1415926535 = 54,908,537 Sq Ft
Total Acres with 100 Ft setback = 54,908,537 Sq Ft / 42,560 Sq Ft per Acre = 1290.1 Acres
Land not paying higher local real estate property tax = 1290.1 Total – 1000 Acres = 290.1 Acres
Calculating Cost of increasing setback from 100 to 500 feet
Cost of setback increase = Land lost to 500 Ft setback – Land lost to 100 Ft setback
Or
Cost of setback increase = 290.1 Acres -55.1 Acres = 235.1 Acres
Calculate value to local tax districts when land converts to solar from ag assessment
At the Mach 2 JPC meeting Local PVA Troy Craycraft stated
Ag use assessed value provides local tax districts with $2.88 per acre
Solar use assessed value provides local tax districts with $88.80 per acre
Stated another way when a solar acre of land pays $85.92 more local tax than it did as ag
Calculate lost revenue to local tax districts when setback prevents land converting from ag to solar
Switching from 100 ft to 500 ft setback means local tax districts lose $86.08 per acres of annual tax revenue on at least 235.1 acres.
Meaning extra setback costs local tax districts $85.92 * 235.0 = $20,191
Tax revenue lost over the 30 year life of these projects = 30 * $20,191 = $605,730
This $605,730 lost to excessive setback will not be available to provide additional services or to allow county residents’ taxes to be reduced.
