P-5

Ancillary Service Prices, Day Ahead Market

12/04/2004

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)
00:000.360.360.36200.360.360.3620
01:000.370.370.37200.370.370.3720
02:000.30.30.3200.30.30.320
03:000.30.30.3200.30.30.320
04:000.30.30.3200.30.30.320
05:000.370.370.37550.370.370.3755
06:000.990.840.84550.990.840.8455
07:0040.50.57540.50.575
08:0040.50.57540.50.575
09:00120.450.4540120.450.4540
10:00120.450.4540120.450.4540
11:00120.450.4514120.450.4514
12:00120.450.4514120.450.4514
13:0040.450.451440.450.4514
14:0040.20.21440.20.214
15:0040.20.21440.20.214
16:00120.20.270120.20.270
17:0050.20.24050.20.240
18:00120.20.270120.20.270
19:0050.20.23550.20.235
20:0050.20.23550.20.235
21:00120.20.235120.20.235
22:0050.20.23550.20.235
23:000.990.450.45200.990.450.4520