P-5

Ancillary Services Prices, Day Ahead Market

08/19/2007

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
02:000.20.20.246.050.20.20.246.05
03:000.20.20.2480.20.20.248
04:000.20.20.249.490.20.20.249.49
05:000.20.20.249.840.20.20.249.84
06:000.20.20.2500.20.20.250
07:0073.890.548.6473.890.548.64
08:0070.50.54570.50.545
09:003.053.050.5553.053.050.555
10:0073.050.55573.050.555
11:0073.050.55573.050.555
12:0073.050.55573.050.555
13:009.33.050.55570.750.555
14:009.563.060.55570.50.555
15:008.013.050.55572.040.555
16:009.573.070.55570.50.555
17:009.553.050.58070.50.580
18:0073.040.58073.040.580
19:0073.040.58073.040.580
20:0012.753.0418012.753.04180
21:009.573.07155.57.51155.5
22:0070.50.58070.50.580
23:0011145.7511145.75