P-5

Ancillary Service Prices, Day Ahead Market

09/17/2004

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)
00:000.380.380.2200.20.20.220
01:000.150.150.15200.150.150.1520
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.10.10.1400.10.10.140
06:000.370.370.2550.20.20.255
07:000.20.20.2550.20.20.255
08:000.20.20.2400.20.20.240
09:000.20.20.2400.20.20.240
10:000.20.20.2160.20.20.216
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
16:000.20.20.2160.20.20.216
17:000.20.20.2160.20.20.216
18:000.150.150.15160.150.150.1516
19:000.170.170.17400.170.170.1740
20:000.150.150.15400.150.150.1540
21:000.150.150.15400.150.150.1540
22:000.150.150.15400.150.150.1540
23:000.840.840.84200.840.840.8420