P-5

Ancillary Services Prices, Day Ahead Market

06/19/2008

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)
00:003.493.490.167.740.250.250.167.74
01:000.330.330.186.410.250.250.186.41
02:000.390.390.191.690.250.250.191.69
03:000.390.390.194.090.250.250.194.09
04:000.320.320.192.290.250.250.192.29
05:000.390.390.188.230.250.250.188.23
06:003.093.090.12500.250.250.1250
07:0073.990.125073.990.1250
08:0073.490.525073.490.5250
09:0073.890.560.8773.890.560.87
10:0073.450.573.6473.450.573.64
11:0010.793.890.15570.10.155
12:0011.494.590.15570.10.155
13:0011.414.590.185570.180.1855
14:0011.44.590.195570.190.1955
15:0011.094.590.55570.50.555
16:0010.794.290.5177.5570.50.5177.55
17:0010.794.290.5206.3570.50.5206.35
18:009.953.450.5148.5770.50.5148.57
19:009.993.490.55570.50.555
20:0011.294.790.5146.6970.50.5146.69
21:0011.094.590.515070.50.5150
22:0010.794.290.55070.50.550
23:004.194.190.25450.250.250.2545