P-5

Ancillary Services Prices, Day Ahead Market

08/09/2007

Time StampEastWest
10 Min Spinning Reserve ($/MWHr)10 Min Non-Synchronous Reserve ($/MWHr)30 Min Operating Reserve ($/MWHr)Regulation ($/MWHr)10 Min Spinning Reserve ($/MWHr)10 Min Non-Synchronous Reserve ($/MWHr)30 Min Operating Reserve ($/MWHr)Regulation ($/MWHr)
00:000.250.250350.250.25035
01:000.20.2044.890.20.2044.89
02:000.20.20450.20.2045
03:000.190.190450.190.19045
04:000.190.190450.190.19045
05:000.20.20450.20.2045
06:000.250.250450.250.25045
07:000.840.840500.840.84050
08:000.20.20500.20.2050
09:003.373.370553.373.37055
10:0073.050.55573.050.555
11:0093.030.549.0371.030.549.03
12:00147.50.559.170.50.559.1
13:0024.2912.450.57070.50.570
14:0022.3212.450.57070.50.570
15:0018.9512.450.57070.50.570
16:0015.629.120.58070.50.580
17:00147.50.57070.50.570
18:0016.7810.280.55570.50.555
19:0073.040.55573.040.555
20:0073.040.55573.040.555
21:008.33.49158.928.33.49158.92
22:003.093.090.5503.093.090.550
23:001.761.760.1350.250.250.135