P-5

Ancillary Service Prices, Day Ahead Market

09/19/2004

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)
00:000.360.360.36200.360.360.3620
01:000.150.150.15200.150.150.1520
02:000.150.150.15200.150.150.1520
03:000.150.150.15200.150.150.1520
04:000.150.150.15200.150.150.1520
05:000.150.150.15200.150.150.1520
06:000.990.990.99200.990.990.9920
07:000.20.20.2140.20.20.214
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
12:000.20.20.2140.20.20.214
13:000.20.20.2140.20.20.214
14:000.20.20.2140.20.20.214
15:000.20.20.2140.20.20.214
16:000.20.20.2550.20.20.255
17:000.20.20.2550.20.20.255
18:000.150.150.15550.150.150.1555
19:000.150.150.15550.150.150.1555
20:000.150.150.15550.150.150.1555
21:000.150.150.15550.150.150.1555
22:000.990.150.15400.990.150.1540
23:001.261.261.26201.261.261.2620