P-5

Ancillary Services Prices, Day Ahead Market

05/18/2008

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)
00:000.320.320.25450.250.250.2545
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
06:000.250.250.25400.250.250.2540
07:000.50.50.5400.50.50.540
08:0072.540.54072.540.540
09:009.953.450.54070.50.540
10:0020.013.460.54070.50.540
11:0026.253.460.54070.50.540
12:0027.223.460.54070.50.540
13:0025.613.460.54070.50.540
14:0020.933.460.54070.50.540
15:0015.83.460.54070.50.540
16:0018.13.460.54070.50.540
17:0017.573.460.54070.50.540
18:0017.273.460.54070.50.540
19:0032.63.460.54070.50.540
20:0035.393.890.54070.50.540
21:0034.993.490.54070.50.540
22:009.092.590.55070.50.550
23:003.493.490.25450.250.250.2545