P-5

Ancillary Service Prices, Day Ahead Market

05/26/2003

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)
00:001.61.551.42601.61.551.4260
01:001.61.61.42601.61.61.4260
02:001.61.61.42601.61.61.4260
03:001.61.61.416.81.61.61.416.8
04:001.61.61.416.81.61.61.416.8
05:001.61.61.416.81.61.61.416.8
06:001.551.551.4601.551.551.460
07:00451.41.460451.41.460
08:00451.31.360451.31.360
09:00451.31.360451.31.360
10:005.51.31.3605.51.31.360
11:0051.31.39.851.31.39.8
12:0051.31.39.851.31.39.8
13:0051.31.39.851.31.39.8
14:0051.351.359.851.351.359.8
15:00301.351.359.8301.351.359.8
16:00451.31.39.8451.31.39.8
17:005.51.351.35435.51.351.3543
18:005.51.351.35435.51.351.3543
19:005.51.31.3435.51.31.343
20:005.51.31.3435.51.31.343
21:005.51.31.3435.51.31.343
22:00301.31.360301.31.360
23:00301.551.42442.81.421.4244