P-5

Ancillary Service Prices, Day Ahead Market

08/31/2003

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)
00:000.750.750.75880.750.750.7588
01:000.670.670.67190.670.670.6719
02:000.670.670.67190.670.670.6719
03:000.670.670.67190.670.670.6719
04:000.670.670.67190.670.670.6719
05:000.670.670.67190.670.670.6719
06:002.522.521.99191.991.991.9919
07:002.20.670.67102.20.670.6710
08:002.20.660.66102.20.660.6610
09:002.20.660.66102.20.660.6610
10:002.20.630.63102.20.630.6310
11:002.20.630.63192.20.630.6319
12:002.20.630.63192.20.630.6319
13:002.20.630.63192.20.630.6319
14:002.20.630.63192.20.630.6319
15:002.20.630.63192.20.630.6319
16:003.250.60.6193.250.60.619
17:003.250.60.6193.250.60.619
18:002.20.610.61192.20.610.6119
19:002.20.610.61192.20.610.6119
20:003.250.60.6193.250.60.619
21:002.20.620.62192.20.620.6219
22:003.250.640.64953.250.640.6495
23:00452.42.460452.42.460