P-5

Ancillary Services Prices, Day Ahead Market

12/22/2008

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)
00:000.30.30.3450.30.30.345
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
05:000.250.250.25450.250.250.2545
06:004.394.390.347.220.30.30.347.22
07:0010.894.390.550.7870.50.550.78
08:0013.664.79357.59.53357.5
09:0017.674.79359.879.53359.87
10:0010.794.29353.449.53353.44
11:0011.094.590.9945.497.490.990.9945.49
12:0010.794.290.54570.50.545
13:0010.393.890.54570.50.545
14:0010.393.890.54570.50.545
15:007.493.890.9945.497.493.890.9945.49
16:0015.943.49359.7415.943.49359.74
17:0034.953.4937834.953.49378
18:0026.953.4937026.953.49370
19:0029.363.4937029.363.49370
20:009.53.49352.559.53.49352.55
21:007.623.891.1245.627.623.891.1245.62
22:003.893.890.5453.893.890.545
23:003.643.640.25450.250.250.2545