P-5

Ancillary Service Prices, Day Ahead Market

11/15/2004

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)
00:000.450.450.45200.450.450.4520
01:000.30.30.3200.30.30.320
02:000.30.30.3200.30.30.320
03:000.30.30.3200.30.30.320
04:000.30.30.3200.30.30.320
05:000.840.840.84350.840.840.8435
06:0030.450.457530.450.4575
07:001.990.20.2751.990.20.275
08:0030.20.27530.20.275
09:0050.20.23550.20.235
10:0050.20.23550.20.235
11:0050.20.21450.20.214
12:0030.20.21430.20.214
13:0030.20.21430.20.214
14:001.990.20.2141.990.20.214
15:0050.20.21450.20.214
16:0080.20.27580.20.275
17:0080.330.333580.330.3335
18:0080.330.3317.4980.330.3317.49
19:0050.320.3217.4950.320.3217.49
20:0050.20.217.4950.20.217.49
21:0050.320.323550.320.3235
22:000.990.20.2350.990.20.235
23:000.450.450.45200.450.450.4520