P-5

Ancillary Services Prices, Day Ahead Market

07/20/2007

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
02:000.190.190.1450.190.190.145
03:000.190.190.1450.190.190.145
04:000.190.190.1450.190.190.145
05:000.190.190.1450.190.190.145
06:000.180.180.1450.180.180.145
07:004.383.490.1504.383.490.150
08:0073.090.55073.090.550
09:0073.090.55073.090.550
10:0073.070.55073.070.550
11:009.553.050.55070.50.550
12:009.563.060.544.5670.50.544.56
13:0015.823.890.55070.50.550
14:0011.013.890.546.0170.50.546.01
15:009.553.050.544.5570.50.544.55
16:0020.413.070.55070.50.550
17:009.553.050.55070.50.550
18:0073.040.55073.040.550
19:0073.040.55073.040.550
20:0073.040.55073.040.550
21:009.583.080.55070.50.550
22:009.993.490.55070.50.550
23:003.893.890.25450.250.250.2545