P-5

Ancillary Service Prices, Day Ahead Market

01/09/2004

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)
00:000.450.450.45250.450.450.4525
01:000.250.250.25250.250.250.2525
02:000.250.250.25200.250.250.2520
03:000.250.250.25200.250.250.2520
04:000.370.370.37200.370.370.3720
05:001.750.450.45251.750.450.4525
06:001.750.450.45251.750.450.4525
07:003.250.320.32253.250.320.3225
08:003.250.20.2253.250.20.225
09:00100.20.225100.20.225
10:00100.20.211100.20.211
11:00100.20.211100.20.211
12:00100.20.211100.20.211
13:002.50.20.2112.50.20.211
14:002.50.20.2112.50.20.211
15:002.50.20.2112.50.20.211
16:003.250.340.34253.250.340.3425
17:00101.251.2526101.251.2526
18:003.250.40.4113.250.40.411
19:003.250.40.4113.250.40.411
20:003.250.40.4113.250.40.411
21:002.50.450.45252.50.450.4525
22:002.50.20.2252.50.20.225
23:002.50.450.45252.50.450.4525