P-5

Ancillary Services Prices, Day Ahead Market

05/01/2008

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)
00:000.350.350.3450.30.30.345
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
05:000.360.360.3450.30.30.345
06:0017.353.490.33000.30.30.3300
07:00373.853.85250123.853.85250
08:0038.533.493.4925013.533.493.49250
09:009.993.493.491009.993.493.49100
10:009.833.333.3352.839.833.333.3352.83
11:009.833.333.3352.839.833.333.3352.83
12:009.833.333.3352.839.833.333.3352.83
13:009.833.333.3352.839.833.333.3352.83
14:009.833.333.3352.839.833.333.3352.83
15:009.833.333.3352.839.833.333.3352.83
16:0040.33.43.410015.33.43.4100
17:00373.583.58100123.583.58100
18:00373.583.58100123.583.58100
19:0035.083.583.5856.0410.083.583.5856.04
20:0035.54453.510.54453.5
21:00373.563.5660.89123.563.5660.89
22:0034.593.090.55070.50.550
23:0028.093.090.3450.30.30.345