P-5

Ancillary Service Prices, Day Ahead Market

10/19/2004

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
01:000.190.190.19200.190.190.1920
02:000.190.190.19200.190.190.1920
03:000.190.190.19200.190.190.1920
04:000.190.190.19200.190.190.1920
05:000.380.380.2400.20.20.240
06:000.360.360.2400.20.20.240
07:000.20.20.2400.20.20.240
08:000.20.20.2400.20.20.240
09:000.20.20.217.490.20.20.217.49
10:000.20.20.2160.20.20.216
11:000.250.250.25140.250.250.2514
12:000.20.20.2140.20.20.214
13:000.20.20.2140.20.20.214
14:000.20.20.2140.20.20.214
15:000.150.150.15140.150.150.1514
16:000.20.20.217.490.20.20.217.49
17:000.20.20.217.490.20.20.217.49
18:000.20.20.2160.20.20.216
19:000.20.20.2160.20.20.216
20:000.20.20.2160.20.20.216
21:001.990.450.45401.990.450.4540
22:000.990.20.2400.990.20.240
23:000.840.840.84200.840.840.8420