Exhibit 310.xls

Sheet3
Sheet2
Sheet1
Development of Schedule 9-Primary Coincident and Non-Coincident Peaks
Based Upon 2003 Normalized Energy
Month
NorWhCus
NorWhGen
ThisMo
NextMo
Later
kWh Used
Hrs
AvgkW
LoadFactr
GpCoinc
CoincFactr
SysCoinc
GpCoincGL
SysCoincGL
12-month total coincident demand
coincident demand per Ex. 40 page 1
deltal
Using Company's 5-month total coincident demand
Using Company's 5-month coincident demand per Ex. 40 page 1
Exhibit 310
?1?/?1?/?2002
27836789.90
30871000.00
11299231.39
16364413.68
173144.83
11299231.39
744.00
33819.80
0.71
47555.83
0.86
40985.51
52311.41
45084.06
?2?/?1?/?2002
23620378.72
26195000.00
9770333.45
13706197.16
144084.31
9770333.45
672.00
33758.40
0.71
47354.96
0.88
41613.17
52090.45
45774.48
?3?/?1?/?2002
26083859.33
28927000.00
13031756.96
12895599.22
156503.16
13031756.96
744.00
34402.70
0.71
48451.10
0.90
43427.21
53296.21
47769.93
?4?/?1?/?2002
24039675.38
26660000.00
11456107.30
12563855.55
19712.53
11456107.30
720.00
35403.26
0.70
50475.86
0.91
45699.33
55523.45
50269.26
?5?/?1?/?2002
27464382.33
30458000.00
13457821.98
14006560.34
0.00
13457821.98
744.00
39243.42
0.64
61078.31
0.96
58643.12
67186.14
64507.43
?6?/?1?/?2002
29449954.91
32660000.00
13798187.38
15624084.58
27682.96
13798187.38
720.00
42425.87
0.66
63909.79
0.97
62255.16
70300.76
68480.68
?7?/?1?/?2002
32542831.38
36090000.00
15851938.59
16575691.16
115201.62
15851938.59
744.00
44106.20
0.70
63304.58
0.95
59888.04
69635.04
65876.84
?8?/?1?/?2002
31466185.75
34896000.00
14446755.20
16846681.19
172749.36
14446755.20
744.00
41523.51
0.69
60145.00
0.90
54031.26
66159.50
59434.39
?9?/?1?/?2002
29921550.95
33183000.00
13560746.10
16244410.01
116394.83
13560746.10
720.00
41114.54
0.65
63418.03
0.88
55939.78
69759.83
61533.75
?10?/?1?/?2002
28739404.87
31872000.00
12521758.70
16015320.76
202325.41
12521758.70
744.00
38308.36
0.70
54912.15
0.74
40494.97
60403.37
44544.46
?11?/?1?/?2002
27504959.42
30503000.00
11693458.45
15785371.26
26404.76
11693458.45
720.00
38490.14
0.70
54972.57
0.78
42845.62
60469.82
47130.18
?12?/?1?/?2002
27520288.55
30520000.00
11393399.46
15932871.06
194293.24
11393399.46
744.00
37158.74
0.73
50887.74
0.86
43893.22
55976.51
48282.54
?1?/?1?/?2003
27836789.90
30871000.00
11572867.03
16177350.45
?2?/?1?/?2003
23620378.72
26195000.00
9305248.20
648688.01
665437.00
1.03
289204.63
291071.00
1.01