P-5

Ancillary Services Prices, Day Ahead Market

05/25/2008

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)
00:003.893.890.3450.30.30.345
01:003.593.590.3450.30.30.345
02:003.593.590.3450.30.30.345
03:000.320.320.3450.30.30.345
04:000.320.320.3450.30.30.345
05:003.593.590.3450.30.30.345
06:000.340.340.3500.30.30.350
07:0073.090.57073.090.570
08:0070.50.54070.50.540
09:009.893.390.54070.50.540
10:009.883.380.54070.50.540
11:009.893.390.54070.50.540
12:009.893.390.54070.50.540
13:009.893.390.54070.50.540
14:009.883.380.54070.50.540
15:009.883.380.54070.50.540
16:009.893.390.54070.50.540
17:009.893.390.54070.50.540
18:009.853.350.54070.50.540
19:009.893.390.54070.50.540
20:0017.083.450.54070.50.540
21:0010.393.890.553.4770.50.553.47
22:007.891.390.55070.50.550
23:003.893.890.25450.250.250.2545