P-5

Ancillary Services Prices, Day Ahead Market

09/30/2005

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)
00:000.250.250.25430.250.250.2543
01:000.250.250.2549.370.250.250.2549.37
02:000.250.250.2553.420.250.250.2553.42
03:000.250.250.2553.860.250.250.2553.86
04:000.250.250.2556.080.250.250.2556.08
05:000.840.840.25142.010.250.250.25142.01
06:003.493.490.25111.940.250.250.25111.94
07:009.593.090.5105.9470.50.5105.94
08:0070.250.259570.250.2595
09:009.883.090.57570.50.575
10:0016.5100.539.5570.50.539.55
11:0021.46100.52870.50.528
12:009.9430.9928.497.490.990.9928.49
13:0029.1530.9930.937.490.990.9930.93
14:0023.6930.9928.497.490.990.9928.49
15:0010.1530.9928.497.490.990.9928.49
16:0019.122.540.9942.177.490.990.9942.17
17:0029.712.540.9952.767.490.990.9952.76
18:0022.282.540.8545.337.350.850.8545.33
19:0034.142.640.9957.197.490.990.9957.19
20:0034.142.640.562.2470.50.562.24
21:0031.5330.57570.50.575
22:009.593.090.598.6670.50.598.66
23:003.893.890.25430.250.250.2543