P-5

Ancillary Services Prices, Day Ahead Market

09/17/2005

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
05:000.20.20.244.380.20.20.244.38
06:000.250.250.287.630.250.250.287.63
07:0073.090.576.0673.090.576.06
08:0070.50.57570.50.575
09:0072.640.545.6472.640.545.64
10:007.470.970.536.5970.50.536.59
11:009.593.090.535.1870.50.535.18
12:009.593.090.528.5970.50.528.59
13:009.593.090.528.4870.50.528.48
14:009.993.490.532.1570.50.532.15
15:009.993.490.536.6470.50.536.64
16:0070.50.59070.50.590
17:0070.50.593.9970.50.593.99
18:0070.50.593.5270.50.593.52
19:0070.50.594.2470.50.594.24
20:0070.50.537.3670.50.537.36
21:009.042.540.57570.50.575
22:009.593.090.547.8570.50.547.85
23:003.093.090.3430.30.30.343