P-5

Ancillary Services Prices, Day Ahead Market

06/14/2008

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)
00:004.194.190.1450.250.250.145
01:000.20.20.1450.20.20.145
02:000.20.20.153.280.20.20.153.28
03:000.20.20.155.890.20.20.155.89
04:000.20.20.155.10.20.20.155.1
05:003.893.890.166.940.250.250.166.94
06:003.993.990.1133.180.250.250.1133.18
07:004.794.790.1132.974.794.790.1132.97
08:004.794.790.5604.794.790.560
09:0074.990.56074.990.560
10:0074.990.56074.990.560
11:0074.990.56074.990.560
12:0012.816.310.56070.50.560
13:0016.5100.56070.50.560
14:0016.5100.56070.50.560
15:0041.5100.56070.50.560
16:0041.5100.563.1970.50.563.19
17:0027.29100.56070.50.560
18:0016.5100.56070.50.560
19:0011.494.990.56070.50.560
20:0010.924.990.56071.070.560
21:0012.956.450.56070.50.560
22:0074.990.55074.990.550
23:004.794.790.25450.250.250.2545