P-5

Ancillary Services Prices, Day Ahead Market

01/31/2012

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)
00:003.343.340.097.430.090.090.097.43
01:003.343.340.098.810.090.090.098.81
02:003.343.340.0910.480.090.090.0910.48
03:003.343.340.0960.090.090.096
04:003.343.340.099.330.090.090.099.33
05:003.343.340.098.990.090.090.098.99
06:003.333.330.0960.090.090.096
07:003.383.380.2160.210.210.216
08:003.353.350.2160.210.210.216
09:003.383.380.215.750.210.210.215.75
10:003.363.360.215.750.210.210.215.75
11:003.383.380.215.750.210.210.215.75
12:003.343.340.215.750.210.210.215.75
13:003.343.340.125.750.120.120.125.75
14:003.333.330.125.750.120.120.125.75
15:003.333.330.125.970.120.120.125.97
16:003.343.340.1211.50.120.120.1211.5
17:008.218.210.21180.210.210.2118
18:003.363.360.2111.60.210.210.2111.6
19:003.353.350.1690.160.160.169
20:003.353.350.2160.210.210.216
21:004.274.270.2160.210.210.216
22:003.353.350.216.50.210.210.216.5
23:003.543.380.097.350.250.090.097.35