P-5

Ancillary Service Prices, Day Ahead Market

09/10/2004

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)
00:000.350.350.2200.20.20.220
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
05:000.10.10.1400.10.10.140
06:000.360.360.2550.20.20.255
07:000.150.150.15400.150.150.1540
08:000.170.170.17400.170.170.1740
09:000.20.20.2550.20.20.255
10:000.180.180.18400.180.180.1840
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
17:000.150.150.15140.150.150.1514
18:000.150.150.15140.150.150.1514
19:000.150.150.15140.150.150.1514
20:000.190.190.19400.190.190.1940
21:000.20.20.2400.20.20.240
22:000.20.20.2140.20.20.214
23:000.450.450.45200.450.450.4520