P-5

Ancillary Services Prices, Day Ahead Market

12/23/2007

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)
00:000.250.250.25450.250.250.2545
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.25450.250.250.2545
06:000.30.30.3450.30.30.345
07:0070.50.54570.50.545
08:0070.50.54570.50.545
09:003.193.040.5453.193.040.545
10:006.73.040.5456.73.040.545
11:004.383.040.5454.383.040.545
12:003.023.020.5453.023.020.545
13:003.023.020.5453.023.020.545
14:003.023.020.5453.023.020.545
15:003.023.020.5453.023.020.545
16:009.533.031.1145.617.611.111.1145.61
17:0021.013.042.510092.52.5100
18:009.543.042.589.1192.52.589.11
19:009.543.04290.278.52290.27
20:0013.073.051.510081.51.5100
21:009.533.030.54570.50.545
22:000.50.50.5450.50.50.545
23:000.250.250.25450.250.250.2545