P-5

Ancillary Service Prices, Day Ahead Market

12/26/2004

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)
00:001.750.840.84201.750.840.8420
01:000.210.210.21200.210.210.2120
02:000.210.210.21200.210.210.2120
03:000.210.210.21200.210.210.2120
04:000.210.210.21200.210.210.2120
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
09:001.750.20.2141.750.20.214
10:001.990.20.2141.990.20.214
11:001.750.20.2141.750.20.214
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
16:0030.20.21430.20.214
17:00120.20.220120.20.220
18:0030.20.22030.20.220
19:0030.20.22030.20.220
20:00120.20.220120.20.220
21:0030.20.21430.20.214
22:0030.20.21430.20.214
23:001.750.50.5201.750.50.520