P-5

Ancillary Services Prices, Day Ahead Market

08/15/2007

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)
00:000.250.250.2450.250.250.245
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.20.20.2450.20.20.245
06:000.20.20.2450.20.20.245
07:000.30.30.3500.30.30.350
08:000.840.840.5500.840.840.550
09:003.093.090.5553.093.090.555
10:003.493.490.5553.493.490.555
11:006.953.490.5556.953.490.555
12:0073.490.53773.490.537
13:0011.14.60.541.170.50.541.1
14:0011.14.60.550.0870.50.550.08
15:0011.294.790.557.9270.50.557.92
16:009.553.050.56570.50.565
17:009.553.050.56570.50.565
18:007.073.030.5755.077.073.030.5755.07
19:006.953.49155.56.953.49155.5
20:009.983.493.4857.989.983.493.4857.98
21:0010.283.523.5258.2810.283.523.5258.28
22:0073.890.55073.890.550
23:000.390.390.25450.250.250.2545