P-5

Ancillary Service Prices, Day Ahead Market

05/21/2003

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)
00:001.551.551.55991.551.551.5599
01:001.61.61.6991.61.61.699
02:001.61.61.6991.61.61.699
03:001.61.61.616.81.61.61.616.8
04:001.61.61.616.81.61.61.616.8
05:001.61.61.616.81.61.61.616.8
06:002.452.452.4902.42.42.490
07:002.81.31.3952.81.31.395
08:002.81.31.3432.81.31.343
09:002.81.351.359.82.81.351.359.8
10:002.81.31.39.82.81.31.39.8
11:002.81.31.39.82.81.31.39.8
12:002.81.351.359.82.81.351.359.8
13:002.81.351.359.82.81.351.359.8
14:002.81.41.49.82.81.41.49.8
15:002.81.41.49.82.81.41.49.8
16:002.81.31.39.82.81.31.39.8
17:002.81.281.28902.81.281.2890
18:002.81.281.28642.81.281.2864
19:002.81.281.28642.81.281.2864
20:002.81.281.28902.81.281.2890
21:002.81.31.3432.81.31.343
22:002.81.351.35952.81.351.3595
23:002.81.421.42952.81.421.4295