P-5

Ancillary Services Prices, Day Ahead Market

12/27/2008

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)
00:001.951.950.3450.30.30.345
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
06:001.971.970.3500.30.30.350
07:0071.990.56571.990.565
08:001.951.950.99651.951.950.9965
09:007.621.981.1245.627.621.981.1245.62
10:008.461.961.4745.977.971.471.4745.97
11:007.621.961.1245.627.621.961.1245.62
12:008.471.971.2345.737.731.231.2345.73
13:007.621.961.1245.627.621.961.1245.62
14:007.491.960.9945.497.491.960.9945.49
15:007.491.960.9945.497.491.960.9945.49
16:007.621.951.1245.627.621.951.1245.62
17:008.451.951.9546.458.451.951.9546.45
18:008.211.941.7146.218.211.941.7146.21
19:005.111.951.2345.735.111.951.2345.73
20:001.951.951.2345.731.951.951.2345.73
21:001.951.950.9945.491.951.950.9945.49
22:001.961.960.5451.961.960.545
23:001.941.940.3450.30.30.345