P-5

Ancillary Service Prices, Day Ahead Market

09/29/2004

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)
00:000.190.190.19200.190.190.1920
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
05:000.20.20.2400.20.20.240
06:000.20.20.2550.20.20.255
07:000.150.150.15550.150.150.1555
08:000.150.150.15550.150.150.1555
09:000.150.150.15400.150.150.1540
10:000.150.150.15400.150.150.1540
11:000.150.150.15140.150.150.1514
12:000.150.150.15140.150.150.1514
13:000.150.150.15140.150.150.1514
14:000.150.150.15140.150.150.1514
15:000.150.150.15140.150.150.1514
16:000.150.150.15400.150.150.1540
17:000.150.150.15400.150.150.1540
18:000.180.180.18400.180.180.1840
19:000.150.150.15400.150.150.1540
20:000.150.150.15400.150.150.1540
21:000.990.150.15400.990.150.1540
22:000.170.170.17400.170.170.1740
23:0030.840.842030.840.8420