P-5

Ancillary Service Prices, Day Ahead Market

02/16/2003

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)
00:001.751.41.4131.751.41.413
01:001.351.351.35131.351.351.3513
02:001.351.351.35131.351.351.3513
03:001.351.351.35131.351.351.3513
04:001.351.351.35131.351.351.3513
05:001.351.351.35131.351.351.3513
06:002.51.461.46132.31.461.4613
07:002.51.451.4582.51.451.458
08:004.251.41.484.251.41.48
09:00151.421.428151.421.428
10:00151.451.4518151.451.4518
11:00151.41.418151.41.418
12:00151.41.418151.41.418
13:00151.41.418151.41.418
14:00151.41.420151.41.420
15:00151.41.418151.41.418
16:00151.281.2818151.281.2818
17:00151.421.4220151.421.4220
18:00151.421.4220151.421.4220
19:00151.451.4529151.451.4529
20:00151.421.4218151.421.4218
21:00151.41.440151.41.440
22:0031.461.464031.461.4640
23:0031.461.464031.461.4640