P-5

Ancillary Services Prices, Day Ahead Market

07/20/2009

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)
00:003.343.340.25280.250.250.2528
01:002.642.640.25280.250.250.2528
02:000.20.20.2280.20.20.228
03:000.20.20.2280.20.20.228
04:000.20.20.2280.20.20.228
05:000.20.20.2280.20.20.228
06:001.971.970.25280.250.250.2528
07:0053.890.53253.890.532
08:005.023.420.5425.023.420.542
09:0073.470.52873.470.528
10:0073.390.52873.390.528
11:0073.390.52873.390.528
12:007.13.390.628.17.13.390.628.1
13:008.473.371.9729.478.473.371.9729.47
14:009.873.372.2829.788.782.282.2829.78
15:009.863.361.9929.498.491.991.9929.49
16:009.853.35229.58.52229.5
17:009.843.340.9928.497.490.990.9928.49
18:006.53.350.5286.53.350.528
19:0053.350.52853.350.528
20:005.53.350.5285.53.350.528
21:006.53.370.5286.53.370.528
22:0073.40.52873.40.528
23:003.393.390.25280.250.250.2528