P-5

Ancillary Service Prices, Day Ahead Market

12/30/2003

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)
00:000.270.270.27600.270.270.2760
01:000.20.20.2600.20.20.260
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.20.20.2200.20.20.220
05:000.320.320.32600.320.320.3260
06:000.380.380.38750.380.380.3875
07:000.320.320.32950.320.320.3295
08:000.320.320.32950.320.320.3295
09:001.990.320.32951.990.320.3295
10:0030.20.21130.20.211
11:0030.20.21130.20.211
12:0030.20.21130.20.211
13:0030.20.21130.20.211
14:001.990.20.2111.990.20.211
15:001.990.20.2111.990.20.211
16:003.250.20.2113.250.20.211
17:003.250.240.24113.250.240.2411
18:003.250.240.24113.250.240.2411
19:003.250.20.2113.250.20.211
20:003.250.20.2113.250.20.211
21:003.250.380.38953.250.380.3895
22:003.250.20.2753.250.20.275
23:003116031160