P-5

Ancillary Services Prices, Day Ahead Market

06/23/2008

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)
00:000.390.390.1450.250.250.145
01:000.390.390.150.860.250.250.150.86
02:000.250.250.159.860.250.250.159.86
03:000.250.250.163.920.250.250.163.92
04:000.250.250.164.240.250.250.164.24
05:000.390.390.159.740.250.250.159.74
06:000.410.410.1500.250.250.150
07:0073.990.176073.990.1760
08:0073.890.55573.890.555
09:0074.390.55574.390.555
10:0074.290.55574.290.555
11:0074.590.55574.590.555
12:0074.590.548.5274.590.548.52
13:008.264.591.7649.528.264.591.7649.52
14:0011.34.83.5458.0410.043.543.5458.04
15:0010.064.293.5658.0610.064.293.5658.06
16:0024.564.99458.510.54458.5
17:0032.584.993.8558.3510.353.853.8558.35
18:0011.34.83.5258.0210.023.523.5258.02
19:0073.890.55573.890.555
20:0073.890.55573.890.555
21:0074.290.55574.290.555
22:0072.580.55072.580.550
23:003.893.890.25450.250.250.2545