P-5

Ancillary Service Prices, Day Ahead Market

09/05/2004

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
01:000.250.250.25200.250.250.2520
02:000.250.250.25200.250.250.2520
03:000.250.250.25200.250.250.2520
04:000.250.250.25200.250.250.2520
05:000.250.250.25200.250.250.2520
06:000.360.360.36200.360.360.3620
07:000.370.370.37140.370.370.3714
08:000.20.20.2140.20.20.214
09:000.20.20.2140.20.20.214
10:000.20.20.2140.20.20.214
11:000.20.20.2140.20.20.214
12:000.990.20.2140.990.20.214
13:000.990.20.2140.990.20.214
14:000.990.20.2140.990.20.214
15:001.990.20.2141.990.20.214
16:000.20.20.2140.20.20.214
17:000.20.20.2400.20.20.240
18:000.20.20.2400.20.20.240
19:000.20.20.2400.20.20.240
20:000.20.20.2400.20.20.240
21:000.20.20.2400.20.20.240
22:000.20.20.2140.20.20.214
23:000.840.840.84200.840.840.8420