P-5

Ancillary Services Prices, Day Ahead Market

07/18/2007

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)
00:000.250.250.1450.250.250.145
01:000.180.180.1450.180.180.145
02:000.170.170.1450.170.170.145
03:000.170.170.1450.170.170.145
04:000.170.170.1450.170.170.145
05:000.180.180.1450.180.180.145
06:000.170.170.1450.170.170.145
07:002.642.640.1502.642.640.150
08:002.542.540.5502.542.540.550
09:003.073.070.5553.073.070.555
10:003.223.090.558.293.223.090.558.29
11:006.33.090.559.336.33.090.559.33
12:007.093.070.542.0972.980.542.09
13:00103.50.54070.50.540
14:009.723.220.539.7270.50.539.72
15:0012.594.390.543.4770.50.543.47
16:0012.183.070.56070.50.560
17:009.553.050.556.5370.50.556.53
18:007.243.050.56072.810.560
19:0073.060.56073.060.560
20:009.573.070.56070.50.560
21:009.993.490.55570.50.555
22:0073.490.55073.490.550
23:003.493.490.25420.250.250.2542