P-5

Ancillary Service Prices, Day Ahead Market

09/15/2004

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
01:000.150.150.15200.150.150.1520
02:000.150.150.15200.150.150.1520
03:000.150.150.15200.150.150.1520
04:000.150.150.15200.150.150.1520
05:000.150.150.15550.150.150.1555
06:000.450.450.45950.450.450.4595
07:000.20.20.2950.20.20.295
08:000.20.20.2550.20.20.255
09:000.990.350.35400.990.350.3540
10:000.990.330.33400.990.330.3340
11:0030.20.21430.20.214
12:0030.20.21430.20.214
13:0030.20.21430.20.214
14:0030.20.21430.20.214
15:001.990.340.34141.990.340.3414
16:001.990.320.32161.990.320.3216
17:001.990.320.32401.990.320.3240
18:001.990.320.32551.990.320.3255
19:001.990.150.15551.990.150.1555
20:0030.150.155530.150.1555
21:0030.150.155530.150.1555
22:0030.150.155530.150.1555
23:000.380.380.38200.380.380.3820