P-5

Ancillary Services Prices, Day Ahead Market

02/16/2008

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)
00:003.993.993.751.773.993.993.751.77
01:003.993.993.761.463.993.993.761.46
02:003.993.993.764.683.993.993.764.68
03:003.993.993.765.283.993.993.765.28
04:003.993.993.765.543.993.993.765.54
05:004553.52104.4843.523.523.52104.48
06:00550.350.550.30.30.350.55
07:0012.0453.5273.5610.563.523.5273.56
08:0011.553.5253.0210.023.523.5253.02
09:0014.5853.5656.1413.143.563.5656.14
10:0016.5253.5658.0815.083.563.5658.08
11:0011.553.452.99.93.43.452.9
12:0011.55352.59.53352.5
13:0011.55352.59.53352.5
14:0011.55352.59.53352.5
15:0011.55352.59.53352.5
16:0010.794.293.5253.0210.023.523.5253.02
17:0019.4250.55070.50.550
18:0030.9950.557.0370.50.557.03
19:0025.6150.55070.50.550
20:0023.1250.55070.50.550
21:0011.7253.5453.2610.263.543.5453.26
22:0018.824.593.761.8218.824.593.761.82
23:004.594.593.5648.313.563.563.5648.31