P-5

Ancillary Services Prices, Day Ahead Market

09/24/2005

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
01:000.20.20.2430.20.20.243
02:000.20.20.2430.20.20.243
03:000.20.20.2430.20.20.243
04:000.20.20.2430.20.20.243
05:000.20.20.262.620.20.20.262.62
06:000.250.250.2593.20.250.250.2593.2
07:009.993.490.57570.50.575
08:009.593.090.57570.50.575
09:0011.294.790.57570.50.575
10:0018.24100.53570.50.535
11:0027.41100.538.4170.50.538.41
12:0034.15100.539.2970.50.539.29
13:0033.79100.543.9270.50.543.92
14:0033.63100.544.4870.50.544.48
15:0033.36100.546.4170.50.546.41
16:0033.77100.59070.50.590
17:0033.53100.59070.50.590
18:0033.3100.593.6170.50.593.61
19:0041.5100.59070.50.590
20:0020100.538.2370.50.538.23
21:0020100.539.4170.50.539.41
22:0010.393.890.546.0670.50.546.06
23:00330.25430.250.250.2543