P-5

Ancillary Services Prices, Day Ahead Market

02/12/2008

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)
00:003.493.493.4984.873.493.493.4984.87
01:003.493.493.4991.193.493.493.4991.19
02:003.493.493.4988.013.493.493.4988.01
03:003.493.493.4987.463.493.493.4987.46
04:003.493.493.4988.133.493.493.4988.13
05:003.853.853.5680.493.853.853.5680.49
06:00550.2557.30.250.250.2557.3
07:0011.55372.59.53372.5
08:0011.553709.53370
09:0012.655454.6511.654454.65
10:0019.555461.5518.554461.55
11:0013.985455124455
12:0011.553.5553.0510.053.553.5553.05
13:0011.55352.59.53352.5
14:0011.55352.59.53352.5
15:0011.55352.59.53352.5
16:0011.553859.53385
17:0019.7150.58570.50.585
18:0028.9550.58570.50.585
19:0019.350.556.3670.50.556.36
20:0019.350.55070.50.550
21:0036.55352.59.53352.5
22:0036.550.55070.50.550
23:0055347.7533347.75