Exhibit 311.xls

Sheet3
Sheet2
Sheet1
Development of Schedule 9-Secondary 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 311
?1?/?1?/?2002
239299368.80
265383000.00
93410508.61
144007967.15
1883286.03
93410508.61
744.00
297591.89
0.71
418459.83
0.86
360645.42
472859.61
407529.32
?2?/?1?/?2002
209604147.88
232451000.00
81980374.32
126223617.85
1400155.71
81980374.32
672.00
293230.60
0.71
411332.34
0.88
361458.30
464805.55
408447.87
?3?/?1?/?2002
219584310.19
243519000.00
102916970.34
114893098.62
1774241.23
102916970.34
744.00
280631.41
0.71
395227.67
0.90
354246.51
446607.27
400298.56
?4?/?1?/?2002
195044183.95
216304000.00
89180052.23
105688591.96
177490.21
89180052.23
720.00
280816.28
0.70
400371.09
0.91
362483.97
452419.33
409606.89
?5?/?1?/?2002
206971145.18
229531000.00
94091152.31
112695788.55
184204.32
94091152.31
744.00
288119.92
0.64
448428.69
0.96
430549.84
506724.42
486521.32
?6?/?1?/?2002
210729486.02
233699000.00
91026708.78
119390897.60
311879.64
91026708.78
720.00
307014.81
0.66
462483.15
0.97
450509.46
522605.96
509075.69
?7?/?1?/?2002
241530207.39
267857000.00
111736704.54
128914332.89
879169.95
111736704.54
744.00
333602.78
0.70
478812.14
0.95
452970.64
541057.71
511856.83
?8?/?1?/?2002
241222723.17
267516000.00
104483210.32
135629888.33
1109624.53
104483210.32
744.00
312473.61
0.69
452604.48
0.90
406597.24
511443.07
459454.88
?9?/?1?/?2002
225371505.86
249937000.00
97944202.73
126593428.56
833874.57
97944202.73
720.00
307431.46
0.65
474204.40
0.88
418286.22
535850.98
472663.43
?10?/?1?/?2002
217632100.99
241354000.00
94069299.33
122159074.61
1403727.05
94069299.33
744.00
300357.67
0.70
430540.06
0.74
317501.77
486510.27
358777.00
?11?/?1?/?2002
223143372.41
247466000.00
94376257.93
127519743.03
1247371.45
94376257.93
720.00
325113.55
0.70
464335.16
0.78
361902.83
524698.73
408950.19
?12?/?1?/?2002
239726780.88
265857000.00
99529764.89
138319955.30
1877060.69
99529764.89
744.00
323801.08
0.73
443435.56
0.86
382485.34
501082.18
432208.43
?1?/?1?/?2003
239299368.80
265383000.00
97277586.41
140636239.04
?2?/?1?/?2003
209604147.88
232451000.00
80888336.71
5265390.42
5215748.00
0.99
2321546.03
2261827.00
0.97