P-5

Ancillary Service Prices, Day Ahead Market

12/29/2003

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)
00:001.990.380.38601.990.380.3860
01:000.320.320.32600.320.320.3260
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.320.320.32200.320.320.3220
05:000.840.840.84600.840.840.8460
06:000.380.380.38750.380.380.3875
07:000.20.20.2950.20.20.295
08:0030.20.29530.20.295
09:0030.20.29930.20.299
10:0030.20.21130.20.211
11:0030.20.21130.20.211
12:0030.20.21130.20.211
13:0030.20.21130.20.211
14:0030.20.21130.20.211
15:003.250.20.2113.250.20.211
16:003.250.20.2113.250.20.211
17:003.250.240.24113.250.240.2411
18:003.250.240.24113.250.240.2411
19:003.250.240.24113.250.240.2411
20:003.250.20.2113.250.20.211
21:003.250.320.32953.250.320.3295
22:003.250.20.2953.250.20.295
23:0030.840.846030.840.8460