P-5

Ancillary Services Prices, Day Ahead Market

02/08/2009

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)
00:003.373.370.3450.30.30.345
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
05:000.250.250.25450.250.250.2545
06:003.373.370.3450.30.30.345
07:0073.370.54573.370.545
08:0073.360.54573.360.545
09:0073.360.54573.360.545
10:0073.350.54573.350.545
11:0073.350.54573.350.545
12:0073.350.54573.350.545
13:0073.350.54573.350.545
14:0073.350.54573.350.545
15:0073.350.54573.350.545
16:0073.350.54573.350.545
17:009.953.450.54570.50.545
18:009.963.460.54570.50.545
19:009.873.370.54570.50.545
20:009.863.360.54570.50.545
21:0073.350.54573.350.545
22:009.873.370.54570.50.545
23:003.373.370.3450.30.30.345