P-5

Ancillary Service Prices, Day Ahead Market

07/15/2004

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)
00:000.380.380.38200.380.380.3820
01:000.390.390.39200.390.390.3920
02:000.320.320.32200.320.320.3220
03:000.320.320.32200.320.320.3220
04:000.320.320.32200.320.320.3220
05:000.320.320.32200.320.320.3220
06:000.380.380.38200.380.380.3820
07:000.20.20.2120.20.20.212
08:000.160.160.16120.160.160.1612
09:000.20.20.2120.20.20.212
10:000.20.20.2120.20.20.212
11:000.20.20.2120.20.20.212
12:000.330.330.33120.330.330.3312
13:000.340.340.34120.340.340.3412
14:001.750.340.34121.750.340.3412
15:001.990.330.33121.990.330.3312
16:001.750.330.33121.750.330.3312
17:000.320.320.32120.320.320.3212
18:000.20.20.2120.20.20.212
19:000.20.20.2120.20.20.212
20:000.160.160.16120.160.160.1612
21:000.160.160.16120.160.160.1612
22:001.750.20.2121.750.20.212
23:000.50.50.5200.50.50.520