P-5

Ancillary Service Prices, Day Ahead Market

07/16/2004

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)
00:000.390.390.39200.390.390.3920
01:000.450.450.45200.450.450.4520
02:000.450.450.45200.450.450.4520
03:000.330.330.33200.330.330.3320
04:000.330.330.33200.330.330.3320
05:000.450.450.45200.450.450.4520
06:000.390.390.39200.390.390.3920
07:000.20.20.2120.20.20.212
08:000.20.20.2120.20.20.212
09:000.20.20.2120.20.20.212
10:000.990.20.2120.990.20.212
11:001.750.320.32121.750.320.3212
12:001.750.330.33121.750.330.3312
13:001.750.450.45121.750.450.4512
14:001.750.450.45121.750.450.4512
15:000.990.450.45120.990.450.4512
16:000.990.450.45120.990.450.4512
17:001.750.450.45121.750.450.4512
18:001.750.20.2121.750.20.212
19:000.180.180.18120.180.180.1812
20:000.150.150.15120.150.150.1512
21:000.20.20.2120.20.20.212
22:001.750.20.2121.750.20.212
23:000.450.450.45200.450.450.4520