P-5

Ancillary Services Prices, Day Ahead Market

05/28/2008

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)
00:000.450.450.25450.250.250.2545
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.2553.450.250.250.2553.45
06:000.840.840.253000.250.250.25300
07:0072.690.530072.690.5300
08:009.5332509.533250
09:0015.093.89362.59.53362.5
10:0014.413.451.5471.048.041.541.5471.04
11:0016.393.451.5571.058.051.551.5571.05
12:0017.643.460.57070.50.570
13:009.853.353.3572.859.853.353.3572.85
14:0073.340.56073.340.560
15:0073.340.56073.340.560
16:0073.340.56073.340.560
17:0020.543.453.4562.959.953.453.4562.95
18:009.853.353.3562.859.853.353.3562.85
19:009.43.342.8162.319.313.252.8162.31
20:0019.193.563.5673.0610.063.563.5673.06
21:0010.063.563.5663.0610.063.563.5663.06
22:007.090.590.55070.50.550
23:000.620.620.25450.250.250.2545