P-5

Ancillary Service Prices, Day Ahead Market

03/10/2004

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)
00:000.390.390.39880.390.390.3988
01:000.450.450.45880.450.450.4588
02:000.450.450.45200.450.450.4520
03:000.450.450.45200.450.450.4520
04:000.450.450.45200.450.450.4520
05:0031.281.282031.281.2820
06:003.251.261.26203.251.261.2620
07:003.252.542.54113.252.542.5411
08:003.250.980.98113.250.980.9811
09:003.250.980.98113.250.980.9811
10:003.250.450.45113.250.450.4511
11:003.250.350.35113.250.350.3511
12:003.250.340.34113.250.340.3411
13:003.250.340.34113.250.340.3411
14:003.250.340.34113.250.340.3411
15:003.250.340.34113.250.340.3411
16:003.250.320.32753.250.320.3275
17:003.250.350.35113.250.350.3511
18:00121.261.2611121.261.2611
19:003.251.271.27113.251.271.2711
20:003.250.390.39113.250.390.3911
21:003.250.450.45753.250.450.4575
22:003.250.360.36753.250.360.3675
23:001.990.20.2751.990.20.275