P-5

Ancillary Services Prices, Day Ahead Market

07/25/2009

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)
00:003.373.370.1280.250.250.128
01:003.363.360.1280.250.250.128
02:002.642.640.1280.250.250.128
03:000.20.20.1280.20.20.128
04:000.20.20.1280.20.20.128
05:002.642.640.1280.250.250.128
06:000.250.250.1280.250.250.128
07:003.333.330.1283.333.330.128
08:003.353.350.1283.353.350.128
09:005.924.390.1285.924.390.128
10:0073.890.52873.890.528
11:0073.890.52873.890.528
12:0073.890.52873.890.528
13:0073.470.52873.470.528
14:007.63.470.52872.870.528
15:009.813.470.52870.660.528
16:009.853.350.52870.50.528
17:009.853.350.52870.50.528
18:0073.370.52873.370.528
19:005.73.490.5285.73.490.528
20:006.53.420.5286.53.420.528
21:005.073.890.19285.073.890.1928
22:0053.40.12853.40.128
23:003.383.380.16280.250.250.1628