P-5

Ancillary Services Prices, Day Ahead Market

06/20/2008

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)
00:003.893.890.152.90.250.250.152.9
01:003.893.890.177.30.250.250.177.3
02:000.370.370.185.290.250.250.185.29
03:000.370.370.186.830.250.250.186.83
04:000.370.370.184.480.250.250.184.48
05:003.393.390.178.730.250.250.178.73
06:000.350.350.12500.250.250.1250
07:003.893.890.17603.893.890.1760
08:0073.490.55573.490.555
09:0073.890.55573.890.555
10:009.993.490.55570.50.555
11:0010.794.291.1155.617.611.111.1155.61
12:0010.794.292.3456.848.842.342.3456.84
13:0012.836.333.5558.0510.053.553.5558.05
14:0016.5103.5258.0210.023.523.5258.02
15:0026.92103.5258.0210.023.523.5258.02
16:0027.94.293.457.99.93.43.457.9
17:0030.434.292.4356.938.932.432.4356.93
18:009.863.360.55570.50.555
19:0073.370.55573.370.555
20:009.13.360.55571.260.555
21:0010.894.390.55570.50.555
22:0010.393.890.55070.50.550
23:003.893.890.25450.250.250.2545