P-5

Ancillary Services Prices, Day Ahead Market

12/05/2008

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)
00:000.250.250.25450.250.250.2545
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
06:002.412.410.25450.250.250.2545
07:0010.962.410.54570.50.545
08:0011.072.40.9947.669.660.990.9947.66
09:008.882.380.9945.497.490.990.9945.49
10:008.852.350.9945.497.490.990.9945.49
11:008.852.350.9945.497.490.990.9945.49
12:008.852.350.54570.50.545
13:008.852.350.54570.50.545
14:008.852.350.54570.50.545
15:008.852.350.54570.50.545
16:0016.232.361.7153.5815.581.711.7153.58
17:009.712.362.3647.719.712.362.3647.71
18:0011.772.351.7149.1311.131.711.7149.13
19:0018.012.351.4755.1317.131.471.4755.13
20:0015.82.362.3653.815.82.362.3653.8
21:008.872.372.3746.878.872.372.3746.87
22:0011.842.40.54570.50.545
23:002.382.380.3450.30.30.345