P-5

Ancillary Services Prices, Day Ahead Market

11/22/2008

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)
00:002.342.340.3450.30.30.345
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
05:000.250.250.25450.250.250.2545
06:002.332.330.3450.30.30.345
07:002.342.340.5452.342.340.545
08:007.732.361.2345.737.732.361.2345.73
09:008.882.381.4745.977.971.471.4745.97
10:0010.512.381.4745.977.971.471.4745.97
11:008.882.381.2345.737.731.231.2345.73
12:008.852.351.2345.737.731.231.2345.73
13:007.082.350.5845.087.082.350.5845.08
14:004.112.350.5454.112.350.545
15:003.482.350.5453.482.350.545
16:0013.342.371.7146.218.211.711.7146.21
17:0013.152.382.3851.1513.152.382.3851.15
18:008.852.352.3548.998.852.352.3548.99
19:008.862.361.4745.977.971.471.4745.97
20:008.842.341.4745.977.971.471.4745.97
21:007.992.351.4745.977.972.331.4745.97
22:006.992.360.5456.992.360.545
23:002.162.160.3450.30.30.345