P-5

Ancillary Service Prices, Day Ahead Market

12/07/2003

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
05:000.10.10.1200.10.10.120
06:001.751.750.4200.40.40.420
07:000.450.450.45110.450.450.4511
08:000.250.250.25110.250.250.2511
09:003.250.150.15113.250.150.1511
10:00100.150.1517100.150.1517
11:00100.150.1517100.150.1517
12:0030.150.151730.150.1517
13:0030.150.151730.150.1517
14:0030.150.151730.150.1517
15:0030.150.151730.150.1517
16:003.250.150.15173.250.150.1517
17:003.250.20.2113.250.20.211
18:003.250.20.2113.250.20.211
19:003.250.20.2113.250.20.211
20:003.250.20.2203.250.20.220
21:001.990.150.15201.990.150.1520
22:001.990.190.19201.990.190.1920
23:003.252.521.25201.991.251.2520