P-5

Ancillary Services Prices, Day Ahead Market

12/31/2005

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)
00:000.250.250.2430.250.250.243
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
05:000.250.250.290.550.250.250.290.55
06:003.0530.2116.530.250.20.2116.53
07:0070.50.594.770.50.594.7
08:0070.250.2588.7570.250.2588.75
09:009.530.58870.50.588
10:007.340.840.58870.50.588
11:007.340.840.52870.50.528
12:007.340.840.52870.50.528
13:007.340.840.52870.50.528
14:007.340.840.52870.50.528
15:007.340.840.52870.50.528
16:007.090.590.58870.50.588
17:0010.960.990.997510.960.990.9975
18:0010.780.990.997510.780.990.9975
19:007.490.990.9961.087.490.990.9961.08
20:0070.50.58870.50.588
21:009.530.58870.50.588
22:0070.250.258870.250.2588
23:003.0530.2430.250.20.243