P-5

Ancillary Services Prices, Day Ahead Market

08/20/2007

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)
00:000.250.250.25450.250.250.2545
01:000.250.250.25450.250.250.2545
02:000.20.20.245.250.20.20.245.25
03:000.20.20.245.60.20.20.245.6
04:000.20.20.245.840.20.20.245.84
05:000.250.250.25450.250.250.2545
06:000.250.250.2575.380.250.250.2575.38
07:003.63.60.553.353.63.60.553.35
08:0073.490.55073.490.550
09:0074.790.55574.790.555
10:006.954.790.5556.954.790.555
11:0074.790.55574.790.555
12:0074.790.56074.790.560
13:008.474.790.56073.320.560
14:0011.294.790.56070.50.560
15:0011.294.790.56070.50.560
16:0011.494.990.56070.50.560
17:0011.294.790.56070.50.560
18:0074.790.55574.790.555
19:006.954.790.5556.954.790.555
20:006.954.790.5556.954.790.555
21:007.674.790.55574.120.555
22:0070.590.55070.590.550
23:000.340.340.25450.250.250.2545