P-5

Ancillary Services Prices, Day Ahead Market

05/12/2008

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)
00:0029.794.790.25450.250.250.2545
01:002.592.590.25450.250.250.2545
02:000.320.320.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:003.893.890.2545.440.250.250.2545.44
06:003.893.890.2598.080.250.250.2598.08
07:0010.54410010.544100
08:0028.14.29410010.544100
09:0010.54468.510.54468.5
10:0010.54468.510.54468.5
11:009.93.43.467.99.93.43.467.9
12:009.893.390.8465.347.340.840.8465.34
13:009.893.390.8465.347.340.840.8465.34
14:009.943.440.8465.347.340.840.8465.34
15:0073.350.56573.350.565
16:0073.340.56573.340.565
17:0073.340.56573.340.565
18:0073.340.56573.340.565
19:0073.350.56573.350.565
20:008.893.340.56571.450.565
21:009.893.390.55070.50.550
22:0070.50.55070.50.550
23:000.380.380.25450.250.250.2545