P-5

Ancillary Services Prices, Day Ahead Market

08/27/2007

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)
00:000.250.250.1450.250.250.145
01:000.20.20.1450.20.20.145
02:000.20.20.1450.20.20.145
03:000.190.190.1450.190.190.145
04:000.190.190.1450.190.190.145
05:000.20.20.1450.20.20.145
06:000.20.20.1450.20.20.145
07:000.20.20.1500.20.20.150
08:001.831.830.17501.831.830.1750
09:003.493.490.5553.493.490.555
10:003.493.490.5553.493.490.555
11:006.953.890.5556.953.890.555
12:0073.890.56073.890.560
13:0073.050.56073.050.560
14:0073.050.56073.050.560
15:007.773.040.56072.270.560
16:008.483.020.960.47.41.940.960.4
17:0073.030.56073.030.560
18:0073.030.55573.030.555
19:006.593.060.5556.593.060.555
20:006.953.040.5556.953.040.555
21:0073.490.55573.490.555
22:0070.50.55070.50.550
23:000.250.250.25450.250.250.2545