P-5

Ancillary Services Prices, Day Ahead Market

05/15/2009

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)
00:000.840.840.25320.250.250.2532
01:002.492.490.25320.250.250.2532
02:000.20.20.2320.20.20.232
03:000.20.20.2320.20.20.232
04:000.20.20.2320.20.20.232
05:002.492.490.25320.250.250.2532
06:000.840.840.25320.250.250.2532
07:003.393.390.5323.393.390.532
08:003.363.360.5323.363.360.532
09:0063.390.53263.390.532
10:006.973.360.5326.973.360.532
11:0073.360.53273.360.532
12:006.953.360.5326.953.360.532
13:0073.360.53273.360.532
14:006.953.360.5326.953.360.532
15:006.953.360.5326.953.360.532
16:006.953.350.5326.953.350.532
17:006.823.350.5326.823.350.532
18:005.53.360.5325.53.360.532
19:005.53.360.5325.53.360.532
20:006.53.340.5326.53.340.532
21:003.813.360.5323.813.360.532
22:003.343.340.5323.343.340.532
23:002.592.590.25320.250.250.2532