P-5

Ancillary Services Prices, Day Ahead Market

04/11/2008

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)
00:000.410.410.3450.30.30.345
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.40.40.3450.30.30.345
06:0023.363.893.896715.263.893.8967
07:0028.783.543.5483.510.043.543.5483.5
08:0031.154410010.544100
09:0035.54453.510.54453.5
10:0035.043.543.5453.0410.043.543.5453.04
11:0035.063.563.5653.0610.063.563.5653.06
12:0040.043.63.674.231.23.63.674.2
13:0046.413.63.689.4146.413.63.689.41
14:0041.743.63.684.7441.743.63.684.74
15:0042.83.543.5485.842.83.543.5485.8
16:0048.333.493.4991.3348.333.493.4991.33
17:0041.883.43.484.8841.883.43.484.88
18:0038.53.43.481.538.53.43.481.5
19:00433.543.5486433.543.5486
20:0049.683.543.5492.6849.683.543.5492.68
21:0045.453.543.5488.4545.453.543.5488.45
22:00103.093.0952.599.593.093.0952.59
23:008.90.390.3450.30.30.345