P-5

Ancillary Service Prices, Day Ahead Market

05/19/2003

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)
00:001.551.551.5590.051.551.551.5590.05
01:001.61.61.690.051.61.61.690.05
02:001.61.61.690.051.61.61.690.05
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
06:002.52.51.64431.851.851.6443
07:002.81.351.35642.81.351.3564
08:002.81.351.35432.81.351.3543
09:002.81.41.49.82.81.41.49.8
10:002.81.41.49.82.81.41.49.8
11:002.81.41.49.82.81.41.49.8
12:002.81.41.49.82.81.41.49.8
13:002.81.41.49.82.81.41.49.8
14:002.81.41.49.82.81.41.49.8
15:002.81.41.49.82.81.41.49.8
16:002.81.41.49.82.81.41.49.8
17:002.81.41.4432.81.41.443
18:002.81.41.49.82.81.41.49.8
19:002.81.351.35432.81.351.3543
20:00101.351.3543101.351.3543
21:002.81.351.359.82.81.351.359.8
22:002.81.41.4642.81.41.464
23:002.82.452.4590.052.82.452.4590.05