P-5

Ancillary Service Prices, Day Ahead Market

10/15/2004

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)
00:000.370.370.2200.20.20.220
01:000.20.20.2200.20.20.220
02:000.20.20.2200.20.20.220
03:000.150.150.15200.150.150.1520
04:000.320.320.2200.20.20.220
05:000.390.390.2400.20.20.240
06:000.380.380.2550.20.20.255
07:000.350.350.35550.350.350.3555
08:000.340.340.34400.340.340.3440
09:000.340.340.34160.340.340.3416
10:000.330.330.33400.330.330.3340
11:000.990.330.33140.990.330.3314
12:001.990.330.33141.990.330.3314
13:001.990.20.2141.990.20.214
14:000.990.20.2140.990.20.214
15:000.20.20.2140.20.20.214
16:000.20.20.2400.20.20.240
17:000.20.20.2400.20.20.240
18:000.20.20.2160.20.20.216
19:0050.20.21650.20.216
20:0030.20.21630.20.216
21:0050.450.454050.450.4540
22:0050.20.24050.20.240
23:0050.840.842050.840.8420