P-5

Ancillary Service Prices, Day Ahead Market

12/17/2003

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)
00:000.40.40.4200.40.40.420
01:000.10.10.1200.10.10.120
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:002.492.490.5200.50.50.520
06:001.851.850.5200.50.50.520
07:003.250.20.2173.250.20.217
08:003.250.20.2173.250.20.217
09:003.250.20.2173.250.20.217
10:003.250.20.2113.250.20.211
11:003.250.20.2113.250.20.211
12:003.250.20.2113.250.20.211
13:003.250.20.2113.250.20.211
14:003.250.20.2113.250.20.211
15:003.250.20.2113.250.20.211
16:003.250.20.2173.250.20.217
17:003.250.270.27173.250.270.2717
18:003.250.270.27173.250.270.2717
19:003.250.270.27203.250.270.2720
20:003.250.20.2113.250.20.211
21:003.251.11.1203.251.11.120
22:003.250.20.2203.250.20.220
23:001.851.850.5200.50.50.520