P-5

Ancillary Services Prices, Day Ahead Market

07/30/2007

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
06:000.150.150450.150.15045
07:000.840.840.1500.840.840.150
08:000.840.840.16500.840.840.1650
09:003.3730.49553.3730.4955
10:0072.980.495572.980.4955
11:0072.970.495572.970.4955
12:0072.970.55572.970.555
13:0072.970.55572.970.555
14:008.372.970.55571.60.555
15:009.462.960.55570.50.555
16:009.452.950.55570.50.555
17:0072.960.55572.960.555
18:006.952.960.5556.952.960.555
19:0072.970.495572.970.4955
20:0072.970.55572.970.555
21:00730.555730.555
22:0073.090.55073.090.550
23:003.093.090.1450.250.250.145