P-5

Ancillary Service Prices, Day Ahead Market

03/15/2004

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)
00:000.390.390.39450.390.390.3945
01:000.450.450.45450.450.450.4545
02:000.450.450.45200.450.450.4520
03:000.450.450.45200.450.450.4520
04:000.450.450.45200.450.450.4520
05:000.450.450.45200.450.450.4520
06:003.251.11.1203.251.11.120
07:003.250.360.36113.250.360.3611
08:003.250.340.34353.250.340.3435
09:003.250.350.35113.250.350.3511
10:003.250.330.33113.250.330.3311
11:003.250.450.45113.250.450.4511
12:003.250.320.32113.250.320.3211
13:003.250.320.32113.250.320.3211
14:003.250.320.32113.250.320.3211
15:003.250.20.2113.250.20.211
16:003.250.20.2353.250.20.235
17:00120.330.3335120.330.3335
18:00120.370.3735120.370.3735
19:00120.370.3735120.370.3735
20:003.250.380.38253.250.380.3825
21:003.250.980.98253.250.980.9825
22:0030.330.332530.330.3325
23:001.990.20.2251.990.20.225