P-5

Ancillary Services Prices, Day Ahead Market

05/19/2008

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)
00:000.250.250.25450.250.250.2545
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
06:000.40.40.252500.250.250.25250
07:0010.393.890.525070.50.5250
08:0010.393.890.5102.5970.50.5102.59
09:0010.393.890.56070.50.560
10:00103.460.57070.50.570
11:009.963.460.57070.50.570
12:009.893.390.57070.50.570
13:009.893.390.57070.50.570
14:00103.380.386070.380.3860
15:00103.380.386070.380.3860
16:00103.340.346070.340.3460
17:00103.340.346070.340.3460
18:00103.340.346070.340.3460
19:00103.340.346070.340.3460
20:009.823.320.57070.50.570
21:009.953.450.56070.50.560
22:0010.393.890.55070.50.550
23:000.390.390.25450.250.250.2545