P-5

Ancillary Services Prices, Day Ahead Market

05/27/2008

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
02:000.250.250.25450.250.250.2545
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.2559.810.250.250.2559.81
06:000.450.450.252500.250.250.25250
07:009.593.090.510070.50.5100
08:007.340.840.5100.4370.50.5100.43
09:009.883.380.56070.50.560
10:009.953.453.4572.959.953.453.4572.95
11:0010.023.523.5273.0210.023.523.5273.02
12:009.893.390.57070.50.570
13:009.953.450.57070.50.570
14:009.953.450.56070.50.560
15:009.893.390.56070.50.560
16:009.883.380.56070.50.560
17:009.853.350.56070.50.560
18:009.843.340.56070.50.560
19:009.843.340.56070.50.560
20:0013.273.523.5275.912.93.523.5275.9
21:0011.893.493.4962.999.993.493.4962.99
22:0070.50.55070.50.550
23:000.390.390.25450.250.250.2545