P-5

Ancillary Service Prices, Day Ahead Market

12/26/2003

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)
00:000.260.260.26250.260.260.2625
01:000.330.330.33250.330.330.3325
02:000.330.330.33200.330.330.3320
03:000.330.330.33200.330.330.3320
04:000.330.330.33200.330.330.3320
05:000.330.330.33250.330.330.3325
06:000.840.840.5250.50.50.525
07:000.20.20.2250.20.20.225
08:001.750.20.2251.750.20.225
09:001.990.20.2251.990.20.225
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
15:001.990.20.2111.990.20.211
16:003.250.20.2113.250.20.211
17:003.250.250.25113.250.250.2511
18:003.250.250.25113.250.250.2511
19:0030.250.251130.250.2511
20:003.250.240.24113.250.240.2411
21:003.2511993.251199
22:000.20.20.2990.20.20.299
23:000.840.840.84600.840.840.8460