P-5

Ancillary Services Prices, Day Ahead Market

12/25/2008

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)
00:001.991.990.3450.30.30.345
01:001.991.990.3450.30.30.345
02:000.30.30.3450.30.30.345
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.30.30.3450.30.30.345
06:001.981.980.348.470.30.30.348.47
07:0071.980.548.4471.980.548.44
08:007.731.971.2348.977.731.971.2348.97
09:007.621.981.1245.627.621.981.1245.62
10:007.621.961.1245.627.621.961.1245.62
11:007.491.960.9945.497.491.960.9945.49
12:0071.960.54571.960.545
13:0071.960.54571.960.545
14:0071.960.54571.960.545
15:007.491.960.9945.497.491.960.9945.49
16:003.051.951.2345.733.051.951.2345.73
17:0010.341.981.9848.3410.341.981.9848.34
18:008.391.961.8946.398.391.961.8946.39
19:007.971.961.4745.977.971.961.4745.97
20:007.971.961.4745.977.971.961.4745.97
21:005.751.960.9945.495.751.960.9945.49
22:001.961.960.5451.961.960.545
23:001.941.940.3450.30.30.345