P-5

Ancillary Service Prices, Day Ahead Market

05/22/2003

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)
00:001.51.51.5911.51.51.591
01:001.551.551.55911.551.551.5591
02:001.551.551.55911.551.551.5591
03:001.551.551.5516.81.551.551.5516.8
04:001.551.551.5516.81.551.551.5516.8
05:001.551.551.5516.81.551.551.5516.8
06:00451.551.5555451.551.5555
07:00451.351.3591451.351.3591
08:005.51.351.35555.51.351.3555
09:002.81.351.359.82.81.351.359.8
10:005.51.351.359.85.51.351.359.8
11:005.51.351.359.85.51.351.359.8
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
15:005.51.41.49.85.51.41.49.8
16:005.51.41.49.85.51.41.49.8
17:005.51.41.4435.51.41.443
18:005.51.31.3435.51.31.343
19:005.51.31.3435.51.31.343
20:005.51.31.3435.51.31.343
21:005.51.351.35435.51.351.3543
22:005.51.41.4645.51.41.464
23:005.51.461.46445.51.461.4644