P-5

Ancillary Service Prices, Day Ahead Market

09/28/2004

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)
00:000.250.250.25200.250.250.2520
01:000.160.160.16200.160.160.1620
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.170.170.17400.170.170.1740
06:000.250.250.25750.250.250.2575
07:000.170.170.17550.170.170.1755
08:000.160.160.16550.160.160.1655
09:000.990.160.16400.990.160.1640
10:0030.150.154030.150.1540
11:0030.150.151430.150.1514
12:0030.150.151430.150.1514
13:0030.190.191430.190.1914
14:0030.190.191430.190.1914
15:0030.190.191430.190.1914
16:0030.180.181630.180.1816
17:0030.190.194030.190.1940
18:001.990.190.19401.990.190.1940
19:0030.190.195530.190.1955
20:0030.150.155530.150.1555
21:001.990.150.15551.990.150.1555
22:000.150.150.15550.150.150.1555
23:000.250.250.25200.250.250.2520