P-5

Ancillary Service Prices, Day Ahead Market

12/25/2004

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)
00:000.30.30.3200.30.30.320
01:000.160.160.16200.160.160.1620
02:000.160.160.16200.160.160.1620
03:000.160.160.16200.160.160.1620
04:000.160.160.16200.160.160.1620
05:000.30.30.3200.30.30.320
06:000.30.30.3500.30.30.350
07:000.20.20.2200.20.20.220
08:000.190.190.19200.190.190.1920
09:001.750.190.19141.750.190.1914
10:001.750.180.18141.750.180.1814
11:000.180.180.18140.180.180.1814
12:000.180.180.18140.180.180.1814
13:000.180.180.18140.180.180.1814
14:000.180.180.18140.180.180.1814
15:000.180.180.18140.180.180.1814
16:001.750.180.18651.750.180.1865
17:001.750.180.18201.750.180.1820
18:001.750.180.18651.750.180.1865
19:001.750.20.2141.750.20.214
20:001.750.20.2141.750.20.214
21:0030.20.21430.20.214
22:001.990.20.2141.990.20.214
23:001.750.50.5201.750.50.520