P-5

Ancillary Services Prices, Day Ahead Market

12/22/2007

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)
00:000.250.250.25450.250.250.2545
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
05:000.30.30.360.210.30.30.360.21
06:003.493.490.358.530.30.30.358.53
07:0070.50.57070.50.570
08:0070.50.56570.50.565
09:007.734.010.56573.280.565
10:0010.514.010.56570.50.565
11:007.6640.56573.340.565
12:00740.560740.560
13:001040.560710.560
14:00740.560740.560
15:00740.560740.560
16:0013.454.030.510070.50.5100
17:0010.514.010.589.0670.50.589.06
18:0021.834.030.510070.50.5100
19:0010.524.020.57570.50.575
20:0013.794.030.57570.50.575
21:0010.540.56570.50.565
22:006.790.50.5506.790.50.550
23:000.250.250.25450.250.250.2545