P-5

Ancillary Service Prices, Day Ahead Market

02/19/2003

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)
00:001.751.421.42451.751.421.4245
01:001.351.351.35291.351.351.3529
02:001.351.351.35131.351.351.3513
03:001.351.351.35131.351.351.3513
04:001.351.351.35131.351.351.3513
05:001.751.751.42291.751.751.4229
06:00202.51.42292.31.421.4229
07:00201.51.531201.51.531
08:00151.421.4220151.421.4220
09:00151.41.420151.41.420
10:00151.281.288151.281.288
11:00151.281.288151.281.288
12:00151.281.288151.281.288
13:00151.281.288151.281.288
14:00151.281.288151.281.288
15:00151.41.48151.41.48
16:00151.281.2820151.281.2820
17:00151.41.420151.41.420
18:00151.41.420151.41.420
19:00151.41.420151.41.420
20:00151.41.420151.41.420
21:00151.271.2731151.271.2731
22:0031.41.44031.41.440
23:0031.41.44031.41.440