P-5

Ancillary Service Prices, Day Ahead Market

12/27/2003

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)
00:003116031160
01:000.330.330.33600.330.330.3360
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.20.20.2200.20.20.220
05:000.330.330.33600.330.330.3360
06:001.11.11.1601.11.11.160
07:000.260.260.26990.260.260.2699
08:003.250.240.24993.250.240.2499
09:0030.330.339930.330.3399
10:0030.250.251130.250.2511
11:0030.250.251130.250.2511
12:0030.250.251130.250.2511
13:0030.250.251130.250.2511
14:0030.250.251130.250.2511
15:003.250.220.22113.250.220.2211
16:003.250.20.2113.250.20.211
17:003.250.740.74113.250.740.7411
18:003.250.740.74113.250.740.7411
19:001.990.740.74111.990.740.7411
20:001.990.330.33111.990.330.3311
21:003.250.330.33993.250.330.3399
22:000.20.20.2990.20.20.299
23:000.840.840.84600.840.840.8460