P-5

Ancillary Services Prices, Day Ahead Market

10/31/2010

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)
00:002.822.820.024.470.250.250.024.47
01:002.822.820.025.270.250.250.025.27
02:002.822.820.024.250.250.250.024.25
03:002.822.820.029.060.250.250.029.06
04:002.822.820.0219.30.250.250.0219.3
05:002.822.820.0228.810.250.250.0228.81
06:002.822.820.02270.250.250.0227
07:003.323.320.027.753.323.320.027.75
08:003.323.320.0263.323.320.026
09:003.323.320.025.53.323.320.025.5
10:003.323.320.024.473.323.320.024.47
11:003.623.320.024.253.623.320.024.25
12:003.63.320.024.253.63.320.024.25
13:003.323.320.024.363.323.320.024.36
14:003.323.320.024.253.323.320.024.25
15:003.323.320.024.253.323.320.024.25
16:0073.320.02773.320.027
17:0073.320.027.7573.320.027.75
18:008.013.320.021772.310.0217
19:0073.320.029.3773.320.029.37
20:0073.320.02773.320.027
21:0073.320.026.773.320.026.7
22:0073.320.024.4773.320.024.47
23:002.822.820.029.70.250.250.029.7