P-5

Ancillary Service Prices, Day Ahead Market

08/27/2004

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
01:000.20.20.2200.20.20.220
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.20.20.2200.20.20.220
06:000.350.350.2750.20.20.275
07:000.180.180.18950.180.180.1895
08:000.20.20.2880.20.20.288
09:000.20.20.2550.20.20.255
10:000.20.20.2550.20.20.255
11:000.20.20.2140.20.20.214
12:000.320.320.32140.320.320.3214
13:000.320.320.32140.320.320.3214
14:000.320.320.32140.320.320.3214
15:000.320.320.32140.320.320.3214
16:000.20.20.2140.20.20.214
17:000.320.320.32160.320.320.3216
18:000.170.170.17140.170.170.1714
19:000.150.150.15550.150.150.1555
20:0030.20.21430.20.214
21:001.990.20.2551.990.20.255
22:000.990.20.2140.990.20.214
23:000.840.840.84200.840.840.8420