P-5

Ancillary Service Prices, Day Ahead Market

09/21/2004

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)
00:000.390.390.39200.390.390.3920
01:000.10.10.1200.10.10.120
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.10.10.1550.10.10.155
06:000.450.450.45950.450.450.4595
07:000.340.340.34950.340.340.3495
08:000.390.390.39550.390.390.3955
09:000.450.450.45400.450.450.4540
10:0030.330.334030.330.3340
11:0030.320.321430.320.3214
12:0030.20.21430.20.214
13:0030.20.21430.20.214
14:0030.20.21430.20.214
15:0030.20.21430.20.214
16:0030.170.174030.170.1740
17:000.990.170.17400.990.170.1740
18:001.990.180.18401.990.180.1840
19:0030.180.184030.180.1840
20:000.150.150.15550.150.150.1555
21:000.150.150.15550.150.150.1555
22:000.150.150.15400.150.150.1540
23:000.450.450.45200.450.450.4520