P-5

Ancillary Service Prices, Day Ahead Market

12/11/2004

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)
00:0030.990.992030.990.9920
01:000.450.450.45200.450.450.4520
02:000.30.30.3200.30.30.320
03:000.30.30.3200.30.30.320
04:000.30.30.3200.30.30.320
05:002.052.050.99500.990.990.9950
06:000.990.990.99550.990.990.9955
07:000.990.370.37750.990.370.3775
08:0040.20.27540.20.275
09:0040.20.24040.20.240
10:0040.20.24040.20.240
11:0040.20.21440.20.214
12:0040.20.21440.20.214
13:0040.20.21440.20.214
14:0040.20.21440.20.214
15:0040.20.21440.20.214
16:0050.20.27050.20.270
17:0050.20.27050.20.270
18:0050.20.27050.20.270
19:0050.20.23550.20.235
20:0050.330.334050.330.3340
21:0050.380.383550.380.3835
22:0040.450.453540.450.4535
23:0040.990.992040.990.9920