P-5

Ancillary Services Prices, Day Ahead Market

01/31/2006

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)
00:000.250.250.1430.250.250.143
01:000.20.20.1430.20.20.143
02:000.20.20.1430.20.20.143
03:000.20.20.1430.20.20.143
04:000.20.20.1430.20.20.143
05:000.20.20.186.150.20.20.186.15
06:003.130.15107.780.250.150.15107.78
07:007.150.250.1115.9270.10.1115.92
08:007.150.250.185.3470.10.185.34
09:009.492.640.1534.2170.150.1534.21
10:007.690.840.1533.3470.150.1533.34
11:007.690.840.152870.150.1528
12:007.690.840.152870.150.1528
13:007.690.840.152870.150.1528
14:007.690.840.152870.150.1528
15:007.690.840.152870.150.1528
16:007.870.790.144.137.180.10.144.13
17:0023.870.990.9950.2223.870.990.9950.22
18:0021.70.990.9947.5721.70.990.9947.57
19:0013.330.990.9936.3813.330.990.9936.38
20:0011.992.590.9943.9910.390.990.9943.99
21:0034.530.99100.527.490.990.99100.52
22:0032.060.250.199070.190.1990
23:0028.093.090.25430.250.250.2543