P-5

Ancillary Service Prices, Day Ahead Market

12/15/2003

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)
00:001.851.850.5200.50.50.520
01:000.490.490.49200.490.490.4920
02:000.490.490.49200.490.490.4920
03:000.490.490.49200.490.490.4920
04:000.490.490.49200.490.490.4920
05:003.252.490.5200.50.50.520
06:003.251.850.5200.50.50.520
07:003.250.20.2173.250.20.217
08:001.990.20.2171.990.20.217
09:003.250.20.2173.250.20.217
10:003.250.20.2113.250.20.211
11:001.750.20.2111.750.20.211
12:001.750.150.15111.750.150.1511
13:001.750.150.15111.750.150.1511
14:001.750.150.15111.750.150.1511
15:003.250.150.15113.250.150.1511
16:001.990.20.2111.990.20.211
17:00100.20.217100.20.217
18:003.250.20.2173.250.20.217
19:003.250.20.2113.250.20.211
20:000.20.20.2110.20.20.211
21:003.2511203.251120
22:003.250.20.2203.250.20.220
23:003.251.850.5201.990.50.520