P-5

Ancillary Service Prices, Day Ahead Market

12/28/2004

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)
00:000.840.840.84200.840.840.8420
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
05:000.990.990.99200.990.990.9920
06:001.750.990.99201.750.990.9920
07:001.750.20.2201.750.20.220
08:001.990.20.2201.990.20.220
09:001.750.20.2141.750.20.214
10:001.750.20.2141.750.20.214
11:001.750.20.2141.750.20.214
12:001.750.20.2141.750.20.214
13:001.750.20.2141.750.20.214
14:001.750.20.2141.750.20.214
15:000.20.20.2140.20.20.214
16:001.750.20.2201.750.20.220
17:0030.990.993530.990.9935
18:0030.990.992030.990.9920
19:001.990.990.99141.990.990.9914
20:001.990.20.2141.990.20.214
21:001.750.20.2141.750.20.214
22:0030.20.21430.20.214
23:0030.50.52030.50.520