P-5

Ancillary Services Prices, Day Ahead Market

12/24/2008

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)
00:002.392.390.3450.30.30.345
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
05:003.193.190.3450.30.30.345
06:002.392.390.3450.30.30.345
07:0072.380.54572.380.545
08:007.732.371.2345.737.732.371.2345.73
09:008.962.461.4745.977.971.471.4745.97
10:008.892.391.4745.977.971.471.4745.97
11:008.882.381.2345.737.731.231.2345.73
12:008.892.390.9945.497.490.990.9945.49
13:008.892.390.54570.50.545
14:008.872.370.54570.50.545
15:0072.350.54572.350.545
16:0011.932.381.7146.218.211.711.7146.21
17:0020.122.371.7146.218.211.711.7146.21
18:0018.252.381.7146.218.211.711.7146.21
19:0010.922.381.4745.977.971.471.4745.97
20:008.732.341.4745.977.971.581.4745.97
21:007.622.351.1245.627.622.351.1245.62
22:0072.370.54572.370.545
23:002.362.360.3450.30.30.345