P-5

Ancillary Services Prices, Day Ahead Market

05/17/2009

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)
00:003.383.380.25320.250.250.2532
01:003.363.360.25320.250.250.2532
02:000.250.250.25320.250.250.2532
03:000.250.250.25320.250.250.2532
04:000.250.250.25320.250.250.2532
05:000.250.250.25320.250.250.2532
06:003.323.320.25320.250.250.2532
07:003.353.350.5323.353.350.532
08:003.333.330.5323.333.330.532
09:003.353.350.5323.353.350.532
10:004.693.360.5324.693.360.532
11:0063.360.53263.360.532
12:0053.360.53253.360.532
13:005.163.360.5325.163.360.532
14:0053.360.53253.360.532
15:0053.360.53253.360.532
16:0053.360.53253.360.532
17:0053.360.53253.360.532
18:005.53.360.5325.53.360.532
19:005.53.360.5325.53.360.532
20:007.923.360.53272.440.532
21:0073.360.53273.360.532
22:0053.390.53253.390.532
23:003.353.350.25320.250.250.2532