P-5

Ancillary Service Prices, Day Ahead Market

11/30/2004

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)
00:000.450.450.45200.450.450.4520
01:000.350.350.35200.350.350.3520
02:000.190.190.19200.190.190.1920
03:000.190.190.19200.190.190.1920
04:000.190.190.19200.190.190.1920
05:000.840.840.84350.840.840.8435
06:000.450.450.45550.450.450.4555
07:000.20.20.2650.20.20.265
08:0040.20.27040.20.270
09:0040.20.23540.20.235
10:0040.20.23540.20.235
11:0040.20.21440.20.214
12:0040.20.21440.20.214
13:0040.20.21440.20.214
14:0040.20.21440.20.214
15:0040.20.21440.20.214
16:0040.20.24040.20.240
17:0050.340.343550.340.3435
18:0050.340.3417.4950.340.3417.49
19:0040.330.3317.4940.330.3317.49
20:0040.330.3317.4940.330.3317.49
21:0050.330.333550.330.3335
22:000.20.20.2350.20.20.235
23:000.390.390.39200.390.390.3920