P-5

Ancillary Services Prices, Day Ahead Market

02/17/2008

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)
00:003.993.993.9948.743.993.993.9948.74
01:004.24.2448.954.24.2448.95
02:004.24.2448.954.24.2448.95
03:004.294.294504.294.29450
04:004.294.29449.734.294.29449.73
05:0034.5253.5693.2933.083.563.5693.29
06:00550.3500.30.30.350
07:0011.552.5272.029.022.522.5272.02
08:0011.55352.59.53352.5
09:0012.025352.59.53352.5
10:0018.795352.59.53352.5
11:0020.295352.59.53352.5
12:0023.225352.59.53352.5
13:0015.955352.59.53352.5
14:0014.395352.59.53352.5
15:0011.55352.59.53352.5
16:0020.095352.59.53352.5
17:0023.2250.58070.50.580
18:0027.9950.58070.50.580
19:0023.7450.58070.50.580
20:0016.5650.58070.50.580
21:0011.55453.510.54453.5
22:0016.125458.1215.124458.12
23:00553.5548.33.553.553.5548.3