P-5

Ancillary Services Prices, Day Ahead Market

12/09/2007

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)
00:004.194.190.3450.30.30.345
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.250.250.25450.250.250.2545
06:003.793.790.3450.30.30.345
07:002.692.690.5452.692.690.545
08:002.642.640.5452.642.640.545
09:004.13.050.5454.13.050.545
10:005.833.040.5455.833.040.545
11:0073.040.54573.040.545
12:0073.040.54573.040.545
13:003.033.030.5453.033.030.545
14:002.692.690.5452.692.690.545
15:00330.545330.545
16:008.183.030.55571.850.555
17:009.533.030.55570.50.555
18:008.343.020.55571.680.555
19:0073.020.55573.020.555
20:009.543.040.510070.50.5100
21:009.553.050.54570.50.545
22:002.292.290.5452.292.290.545
23:000.30.30.3450.30.30.345