P-5

Ancillary Service Prices, Day Ahead Market

01/04/2004

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)
00:000.390.390.39200.390.390.3920
01:000.250.250.25200.250.250.2520
02:000.250.250.25200.250.250.2520
03:000.250.250.25200.250.250.2520
04:000.250.250.25200.250.250.2520
05:000.450.450.45200.450.450.4520
06:003.251.251.25203.251.251.2520
07:003.250.20.2113.250.20.211
08:001.750.20.2111.750.20.211
09:001.750.20.2111.750.20.211
10:001.750.350.35251.750.350.3525
11:001.750.320.32251.750.320.3225
12:001.750.320.32251.750.320.3225
13:001.750.320.32251.750.320.3225
14:001.750.350.35251.750.350.3525
15:001.750.320.32251.750.320.3225
16:001.990.350.35251.990.350.3525
17:00100.320.3225100.320.3225
18:00100.320.3225100.320.3225
19:003.250.320.32253.250.320.3225
20:00100.450.4525100.450.4525
21:0030.350.352530.350.3525
22:003.250.20.2253.250.20.225
23:001.750.840.84251.750.840.8425