P-5

Ancillary Service Prices, Day Ahead Market

12/18/2004

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)
00:000.30.30.3200.30.30.320
01:000.170.170.17200.170.170.1720
02:000.170.170.17200.170.170.1720
03:000.170.170.17200.170.170.1720
04:000.170.170.17200.170.170.1720
05:000.50.50.5200.50.50.520
06:000.30.30.3200.30.30.320
07:000.20.20.2200.20.20.220
08:001.750.190.19201.750.190.1920
09:001.750.180.18141.750.180.1814
10:001.750.170.17141.750.170.1714
11:001.750.170.17141.750.170.1714
12:001.750.170.17141.750.170.1714
13:001.750.170.17141.750.170.1714
14:001.750.170.17141.750.170.1714
15:001.750.170.17141.750.170.1714
16:001.990.170.17201.990.170.1720
17:001.990.180.18201.990.180.1820
18:001.750.180.1817.491.750.180.1817.49
19:001.750.180.18141.750.180.1814
20:001.750.170.17141.750.170.1714
21:001.990.170.17141.990.170.1714
22:001.990.20.2201.990.20.220
23:000.840.840.84200.840.840.8420