P-5

Ancillary Service Prices, Day Ahead Market

07/27/2004

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)
00:000.370.370.25200.250.250.2520
01:000.250.250.25200.250.250.2520
02:000.190.190.19200.190.190.1920
03:000.190.190.19200.190.190.1920
04:000.190.190.19200.190.190.1920
05:000.190.190.19200.190.190.1920
06:000.380.380.25200.250.250.2520
07:000.20.20.2120.20.20.212
08:000.20.20.2120.20.20.212
09:000.20.20.2120.20.20.212
10:000.20.20.2120.20.20.212
11:000.20.20.2120.20.20.212
12:000.20.20.2120.20.20.212
13:000.20.20.2120.20.20.212
14:000.20.20.2120.20.20.212
15:000.20.20.2120.20.20.212
16:000.20.20.2120.20.20.212
17:000.20.20.2120.20.20.212
18:000.20.20.2120.20.20.212
19:000.20.20.2120.20.20.212
20:000.20.20.2120.20.20.212
21:000.320.320.32120.320.320.3212
22:001.750.20.2121.750.20.212
23:000.50.50.5200.50.50.520