P-5

Ancillary Service Prices, Day Ahead Market

11/21/2004

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)
00:000.360.360.36200.360.360.3620
01:000.370.370.37200.370.370.3720
02:000.30.30.3200.30.30.320
03:000.30.30.3200.30.30.320
04:000.30.30.3200.30.30.320
05:000.840.840.84200.840.840.8420
06:000.840.840.84200.840.840.8420
07:000.20.20.2140.20.20.214
08:000.20.20.2140.20.20.214
09:000.20.20.2140.20.20.214
10:000.20.20.2140.20.20.214
11:000.20.20.2140.20.20.214
12:000.20.20.2140.20.20.214
13:000.20.20.2140.20.20.214
14:000.20.20.2140.20.20.214
15:000.20.20.2140.20.20.214
16:0050.20.23550.20.235
17:00120.20.235120.20.235
18:0050.20.23550.20.235
19:0050.20.27050.20.270
20:0050.20.26550.20.265
21:000.20.20.2650.20.20.265
22:000.20.20.2350.20.20.235
23:000.450.450.45200.450.450.4520