Table 1

Overall Project Summary With Effect of Existing Line

Xcel Red Rock-Wilson Transmission Line

                                                           Existing Route Alternative Alternative Alternative Alternative Alternative
                                                   Existing Proposed by      Route A     Route B     Route C     Route D     Route E
Issue                                               Line(1)        Xcel   (Option A)  (Option B)  (Option C)  (Option D)  (Option E)

Total Length of Line (Miles)                          14.0         14.0         15.0        15.9        12.4        20.4        19.0
Total Length of Double Circuit System (Miles)         14.0         14.0         19.8        20.8        18.1        26.1        30.3
Length of Stringing New Conductor on Exixt Str.(Miles) 0.0          0.5          0.5         0.5         0.5         0.5         0.5
Length of Double-Circuiting Existing Lines (Miles)     0.0         13.4          8.6         8.6         7.8         9.7         4.2
Length of New Single-Circuit Line (Miles)              0.0          0.0          5.9         6.8         0.0         0.0         0.0
Length of Reconductoring Existing Lines (Miles)        0.0          0.0          0.0         0.0         4.1        10.2        14.3
Length of Line Not Changed(Miles)                      0.0          0.0          4.9         4.9         5.7         5.7        11.2
Number of Substations to be Modified                    0            4            4           4           5           6           5
Estimated Cost of Construction                          $0  $16,100,000  $16,780,000 $17,270,000 $21,600,000 $16,070,000 $19,170,000

Transmission System Analysis

 

Summer 2004 Peak Loads

 Number Circuits Over 105 % of Normal Rating           13            5            5           5           4           5           7
 Number Circuits 95 to 105 % of Normal Rating          14            6            6           6           8           5           5
Summer 2004 Off-Peak (80%) Loads
 Number Circuits Over 105 % of Normal Rating           37            6            6           6          19          12          13
 Number Circuits 95 to 105 % of Normal Rating          53           21           21          21          42          31          30

Electrical Effects, 50-Foot-Wide R/W(2)

 

Assumed Electrical Load (Amperage)                    800      400/400          400          400         N/C        N/C         N/C
Edge of Right-of-Way Electric Field (kV/m)            1.0         0.6      0.3 to 0.6   0.3 to 0.6      N/C        N/C         N/C
Edge of Right-of-Way Magnetic Field (mG)              86.7        21.0     15.9 to 27.2 15.9 to 27.2     N/C        N/C         N/C
Edge of Right-of-Way Noise (db(A))                    20.4        24.5     21.8 to 24.5 21.8 to 24.5     N/C        N/C         N/C
Underground Edge of R/W Magnetic Field (mG)(3)        N/A   1.0 to 1.2          N/A          N/A         N/A        N/A         N/A

Environmental - Dakota County Portion Only

 

Number of Streams Crossed                               3            3            4           3           5           3           5
Number of Land Owner Parcels Crossed (4)               98           98          135         160         N/E         N/E         N/E
Numbers of Residences Within (5):

  0 to 25 Feet                                         24           24           25          30          25          24          29
  26 to 50 Feet                                        17           17           21          23          20          48          51
  51 to 100 Feet                                       39           39           54          62          45          63          69
  101 to 250 Feet                                     133          133          204         231         145         206         218
     Total                                            213          213          304         346         235         341         367

Number of Apartment Buildings Within 250 Feet:         12           12           15          15          12          20          20
Number of Churches Within 250 Feet                      1            1            4           1           1           1           1
Number Cultural Resource Sites Within 250 Feet          4            4            4           5         N/E         N/E         N/E

Length of Lakes/Ponds Crossed (Feet)                5,600        5,600        5,800       7,250      70,900       6,450      11,750
Length of Wetlands (Hydric Soils) Crossed (Feet)    7,100        7,100       12,050      11,750      14,950      10,400      18,250
Length of Cemeteries Crossed (Feet)                 4,750        4,750        4,750       4,750       4,750       4,750       4,750
Length of Schools Crossed (Feet)                        0            0            0       1,650           0       1,200       1,200
Length of Parks/Golf Courses Crossed (Feet)         6,250        6,250       12,600       6,250      14,850       7,050      15,650
Length of Clearing Required (Feet)                    250          250        5,750       4,050         250         250         250
Length of Interstate Highways Paralleled (Feet)     1,200        1,200       15,150      28,550       1,200       1,800       1,800
Length of Other Roads Paralleled (Feet)             2,650        2,650       19,850       7,950       2,650       9,950       9,950
Length of Interstate Highway Crossings (Feet)       1,250        1,250        3,150       2,700       1,250       1,950       1,950
(1) Assumes that the existing line will remain in place for all options.

 

(3)    Calculated for double-circuit on existing route only. No electrical field or noise will be produced above grade.

(4)    Approximate. Estimated using property ownership maps and aerial photography.

(5)    “Within” distances measured from centerline of route.

 

N/A - Not applicable. N/C - Not calculated. N/E - Not estimated.