P-5

Ancillary Services Prices, Day Ahead Market

02/18/2008

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)
00:004.44.4496.254.44.4496.25
01:004.44.4497.264.44.4497.26
02:004.44.4496.244.44.4496.24
03:004.44.4497.234.44.4497.23
04:004.294.29496.024.294.29496.02
05:0047.4354179.2746.4344179.27
06:0055384.6233384.62
07:0036.55372.59.53372.5
08:0036.553.5210010.023.523.52100
09:0011.553.525510.023.523.5255
10:0011.553.525510.023.523.5255
11:0011.553.5253.0210.023.523.5253.02
12:0011.55352.59.53352.5
13:0011.55352.59.53352.5
14:0011.55352.59.53352.5
15:0011.55352.59.53352.5
16:0011.553.3785.739.873.373.3785.73
17:0014.8350.58570.50.585
18:0013.4953859.53385
19:0011.553809.53380
20:0011.550.58070.50.580
21:0019.82548018.824480
22:0028.8753.670.4727.473.63.670.47
23:0055449.544449.5