P-5

Ancillary Services Prices, Day Ahead Market

05/31/2011

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)
00:005.445.440.0170.010.010.017
01:003.383.380.0180.010.010.018
02:000.450.450.0180.010.010.018
03:000.20.20.0180.010.010.018
04:000.20.20.0180.010.010.018
05:000.450.450.0180.010.010.018
06:002.52.50.0180.010.010.018
07:007.997.990.0580.050.050.058
08:0013.227.990.0612.255.290.060.0612.25
09:0014.937.990.0614.9370.060.0614.93
10:0019.6312.690.062570.060.0625
11:0017.7210.780.062570.060.0625
12:00158.060.062570.060.0625
13:00158.050.052570.050.0525
14:00158.060.062570.060.0625
15:0020.2613.320.062570.060.0625
16:0019.3712.430.062570.060.0625
17:0014.937.990.062570.060.0625
18:0014.937.990.062570.060.0625
19:0014.937.990.062570.060.0625
20:00158.060.062570.060.0625
21:00107.990.0682.070.060.068
22:007.997.990.0680.060.060.068
23:001.781.780.0180.010.010.018