P-5

Ancillary Service Prices, Day Ahead Market

08/16/2004

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)
00:000.20.20.2200.20.20.220
01:000.10.10.1200.10.10.120
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.10.10.1200.10.10.120
06:000.360.360.2550.20.20.255
07:000.180.180.18140.180.180.1814
08:000.20.20.2140.20.20.214
09:000.20.20.2140.20.20.214
10:000.20.20.2140.20.20.214
11:000.20.20.2140.20.20.214
12:000.20.20.2140.20.20.214
13:000.20.20.2140.20.20.214
14:000.20.20.2140.20.20.214
15:000.20.20.2140.20.20.214
16:000.160.160.16140.160.160.1614
17:000.20.20.2140.20.20.214
18:000.180.180.18140.180.180.1814
19:000.150.150.15140.150.150.1514
20:000.990.20.2140.990.20.214
21:001.990.20.2141.990.20.214
22:000.20.20.2140.20.20.214
23:000.840.840.84200.840.840.8420