P-5

Ancillary Service Prices, Day Ahead Market

09/23/2004

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)
00:000.370.370.2200.20.20.220
01:000.20.20.2200.20.20.220
02:000.20.20.2200.20.20.220
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.20.20.2550.20.20.255
06:000.370.370.2750.20.20.275
07:000.170.170.17550.170.170.1755
08:000.150.150.15550.150.150.1555
09:000.330.330.33400.330.330.3340
10:000.190.190.19400.190.190.1940
11:000.190.190.19160.190.190.1916
12:000.370.370.37140.370.370.3714
13:000.380.380.38140.380.380.3814
14:000.390.390.39140.390.390.3914
15:000.390.390.39140.390.390.3914
16:000.380.380.38160.380.380.3816
17:000.450.450.45160.450.450.4516
18:000.990.980.98160.990.980.9816
19:0030.980.984030.980.9840
20:0030.350.354030.350.3540
21:0030.360.364030.360.3640
22:000.990.370.37400.990.370.3740
23:000.380.380.38200.380.380.3820