P-5

Ancillary Services Prices, Day Ahead Market

12/09/2008

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)
00:000.840.840.3450.30.30.345
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.840.840.3450.30.30.345
06:002.342.340.3450.30.30.345
07:0072.360.54572.360.545
08:008.762.352.2646.768.762.352.2646.76
09:007.922.371.4245.927.922.371.4245.92
10:007.972.351.4745.977.972.351.4745.97
11:007.492.350.9945.497.492.350.9945.49
12:007.492.350.9945.497.492.350.9945.49
13:007.492.350.9945.497.492.350.9945.49
14:005.72.350.9945.495.72.350.9945.49
15:007.492.350.9945.497.492.350.9945.49
16:008.852.352.3546.858.852.352.3546.85
17:008.862.362.3646.868.862.362.3646.86
18:008.852.352.3546.858.852.352.3546.85
19:008.872.372.3746.878.872.372.3746.87
20:008.852.352.3546.858.852.352.3546.85
21:008.852.352.3546.858.852.352.3546.85
22:0072.370.54572.370.545
23:002.352.350.3450.30.30.345