P-5

Ancillary Services Prices, Day Ahead Market

07/31/2007

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)
00:000.20.20450.20.2045
01:000.180.180450.180.18045
02:000.160.160450.160.16045
03:000.160.160450.160.16045
04:000.160.160450.160.16045
05:000.160.160450.160.16045
06:000.140.140450.140.14045
07:000.20.20500.20.2050
08:000.840.840.18500.840.840.1850
09:003.493.490.4553.493.490.455
10:0073.180.55573.180.555
11:0073.180.55573.180.555
12:0073.180.55573.180.555
13:0073.180.55573.180.555
14:009.313.180.55570.870.555
15:009.683.180.539.6870.50.539.68
16:009.683.183.1857.689.683.183.1857.68
17:0073.180.55573.180.555
18:006.953.180.5556.953.180.555
19:0073.180.55573.180.555
20:0073.180.55573.180.555
21:0073.890.55573.890.555
22:0073.090.45073.090.450
23:002.542.540.1450.250.250.145