P-5

Ancillary Services Prices, Day Ahead Market

05/31/2009

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)
00:003.343.340.25320.250.250.2532
01:003.343.340.25320.250.250.2532
02:000.250.250.25320.250.250.2532
03:000.250.250.25320.250.250.2532
04:000.20.20.2320.20.20.232
05:000.20.20.2320.20.20.232
06:003.323.320.25320.250.250.2532
07:003.343.340.5323.343.340.532
08:003.333.330.5323.333.330.532
09:003.393.390.5323.393.390.532
10:003.383.380.5323.383.380.532
11:003.953.380.5323.953.380.532
12:004.793.380.5324.793.380.532
13:005.53.380.5325.53.380.532
14:004.983.380.5324.983.380.532
15:004.833.380.5324.833.380.532
16:005.173.370.5325.173.370.532
17:005.53.360.5325.53.360.532
18:005.073.360.5325.073.360.532
19:004.623.360.5324.623.360.532
20:006.183.360.5326.183.360.532
21:005.13.380.5325.13.380.532
22:003.383.380.5323.383.380.532
23:002.852.850.25320.250.250.2532