P-5

Ancillary Services Prices, Day Ahead Market

12/30/2011

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)
00:003.53.340.095.750.250.090.095.75
01:003.53.340.095.50.250.090.095.5
02:003.53.340.095.50.250.090.095.5
03:003.53.340.0960.250.090.096
04:003.53.340.0960.250.090.096
05:003.53.340.097.040.250.090.097.04
06:003.53.340.0960.250.090.096
07:000.750.750.2560.250.250.256
08:000.760.760.2560.250.250.256
09:00220.255.750.250.250.255.75
10:005.643.340.255.752.550.250.255.75
11:005.333.350.255.752.230.250.255.75
12:005.093.340.255.7520.250.255.75
13:005.093.340.255.7520.250.255.75
14:005.093.340.255.7520.250.255.75
15:003.323.320.255.950.250.250.255.95
16:0063.330.25202.920.250.2520
17:0010.093.340.252070.250.2520
18:005.113.340.25202.020.250.2520
19:005.083.330.25920.250.259
20:002.952.950.2560.250.250.256
21:003.323.320.2560.250.250.256
22:004.933.320.2551.860.250.255
23:003.573.410.095.250.250.090.095.25