P-5

Ancillary Services Prices, Day Ahead Market

05/20/2008

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)
00:000.390.390.25450.250.250.2545
01:000.250.250.25450.250.250.2545
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.20.20.250.970.20.20.250.97
06:000.40.40.2564.30.250.250.2564.3
07:0073.490.56073.490.560
08:0010.393.890.56070.50.560
09:0010.894.390.56070.50.560
10:0010.393.893.5573.0510.053.553.5573.05
11:009.963.462.5772.079.072.572.5772.07
12:009.963.460.57070.50.570
13:009.963.460.57070.50.570
14:009.963.460.56070.50.560
15:009.963.460.56070.50.560
16:009.883.380.56070.50.560
17:009.883.380.56070.50.560
18:009.883.380.56070.50.560
19:009.883.382.4761.978.972.472.4761.97
20:009.883.383.3872.889.883.383.3872.88
21:0032.344.293.5563.0510.053.553.5563.05
22:0070.50.55070.50.550
23:000.40.40.25450.250.250.2545