P-5

Ancillary Service Prices, Day Ahead Market

12/19/2003

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)
00:000.390.390.39200.390.390.3920
01:000.320.320.32200.320.320.3220
02:000.320.320.32200.320.320.3220
03:000.320.320.32200.320.320.3220
04:000.320.320.32200.320.320.3220
05:001.751.10.5200.50.50.520
06:003.250.50.5203.250.50.520
07:003.250.20.2173.250.20.217
08:003.250.320.32173.250.320.3217
09:001.990.20.2171.990.20.217
10:001.990.20.2111.990.20.211
11:001.990.20.2111.990.20.211
12:001.990.20.2111.990.20.211
13:001.990.20.2111.990.20.211
14:001.990.20.2111.990.20.211
15:001.990.20.2111.990.20.211
16:003.250.20.2173.250.20.217
17:003.250.360.36173.250.360.3617
18:003.250.360.36173.250.360.3617
19:003.250.360.36113.250.360.3611
20:003.250.360.36113.250.360.3611
21:003.250.50.5203.250.50.520
22:003.250.20.2203.250.20.220
23:001.750.50.5201.750.50.520