P-5

Ancillary Services Prices, Day Ahead Market

12/20/2008

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)
00:001.851.850.3450.30.30.345
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
05:000.30.30.3450.30.30.345
06:002.372.370.3450.30.30.345
07:005.662.380.5455.662.380.545
08:006.562.360.5456.562.360.545
09:0072.360.54572.360.545
10:0072.350.54572.350.545
11:008.842.340.54570.50.545
12:0072.350.54572.350.545
13:006.632.350.5456.632.350.545
14:005.362.350.5455.362.350.545
15:0072.350.54572.350.545
16:0072.320.54572.320.545
17:0010.382.350.54570.50.545
18:008.842.340.54570.50.545
19:0072.320.54572.320.545
20:008.862.360.54570.50.545
21:007.962.340.54571.380.545
22:0072.360.54572.360.545
23:002.372.370.3450.30.30.345