P-5

Ancillary Services Prices, Day Ahead Market

05/23/2008

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)
00:000.390.390.25450.250.250.2545
01:000.250.250.25450.250.250.2545
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.460.460.25450.250.250.2545
06:000.390.390.2590.630.250.250.2590.63
07:0073.490.54573.490.545
08:0072.690.582.5972.690.582.59
09:0073.380.54573.380.545
10:009.883.380.54570.50.545
11:009.953.450.54570.50.545
12:009.953.450.54570.50.545
13:009.953.450.54570.50.545
14:009.953.450.54570.50.545
15:009.893.390.54570.50.545
16:0073.320.54573.320.545
17:009.883.381.7846.288.281.781.7846.28
18:009.853.350.54570.50.545
19:009.853.350.54570.50.545
20:009.853.353.3547.859.853.353.3547.85
21:009.883.38347.59.53347.5
22:0010.393.890.54570.50.545
23:000.450.450.25450.250.250.2545