P-5

Ancillary Services Prices, Day Ahead Market

11/19/2008

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)
00:000.840.840.25450.250.250.2545
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:002.542.540.25450.250.250.2545
06:003.343.340.25450.250.250.2545
07:0073.370.54573.370.545
08:0073.330.54573.330.545
09:0073.330.54573.330.545
10:009.823.320.54570.50.545
11:0073.320.54573.320.545
12:0073.330.54573.330.545
13:0073.330.54573.330.545
14:007.043.330.54573.290.545
15:0073.330.54573.330.545
16:006.953.320.5456.953.320.545
17:009.843.340.54570.50.545
18:0073.320.54573.320.545
19:0073.320.54573.320.545
20:0073.320.54573.320.545
21:009.513.330.54570.820.545
22:0073.340.54573.340.545
23:003.333.330.25450.250.250.2545