P-5

Ancillary Services Prices, Day Ahead Market

05/14/2007

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)
00:000.20.20.2450.20.20.245
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.20.20.2450.20.20.245
06:000.250.250.2550.590.250.250.2550.59
07:004.794.790.5554.794.790.555
08:00750.555750.555
09:00750.555750.555
10:00750.550750.550
11:001050.550720.550
12:008.2250.55073.780.550
13:008.4350.54773.570.547
14:00750.547750.547
15:00103.50.54770.50.547
16:009.993.490.54770.50.547
17:009.993.490.54770.50.547
18:007.213.070.54772.860.547
19:007.53.070.54772.570.547
20:0010.874.370.55570.50.555
21:0073.490.54773.490.547
22:002.082.080.5472.082.080.547
23:000.250.250.25470.250.250.2547