P-5

Ancillary Service Prices, Day Ahead Market

08/31/2004

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)
00:000.360.360.2200.20.20.220
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
07:000.20.20.2550.20.20.255
08:000.20.20.2550.20.20.255
09:000.20.20.2140.20.20.214
10:000.190.190.19140.190.190.1914
11:000.190.190.19140.190.190.1914
12:000.180.180.18140.180.180.1814
13:000.20.20.2140.20.20.214
14:000.20.20.2140.20.20.214
15:0030.20.21430.20.214
16:000.990.20.2160.990.20.216
17:000.20.20.2140.20.20.214
18:000.150.150.15140.150.150.1514
19:000.150.150.15140.150.150.1514
20:000.170.170.17140.170.170.1714
21:000.190.190.19140.190.190.1914
22:000.20.20.2140.20.20.214
23:000.840.840.84200.840.840.8420