P-5

Ancillary Service Prices, Day Ahead Market

07/19/2004

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
01:000.20.20.2200.20.20.220
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.20.20.2200.20.20.220
05:000.20.20.2200.20.20.220
06:000.380.380.25200.250.250.2520
07:000.20.20.2120.20.20.212
08:000.20.20.2120.20.20.212
09:000.330.330.33120.330.330.3312
10:0030.20.21230.20.212
11:000.990.370.37120.990.370.3712
12:000.370.370.37120.370.370.3712
13:000.360.360.36120.360.360.3612
14:000.370.370.37120.370.370.3712
15:000.990.370.37120.990.370.3712
16:000.990.360.36120.990.360.3612
17:000.350.350.35120.350.350.3512
18:000.340.340.34120.340.340.3412
19:000.20.20.2120.20.20.212
20:000.20.20.2120.20.20.212
21:000.20.20.2120.20.20.212
22:000.320.320.32120.320.320.3212
23:000.450.450.45200.450.450.4520