P-5

Ancillary Service Prices, Day Ahead Market

07/21/2004

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)
00:000.350.350.2200.20.20.220
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
05:000.10.10.1200.10.10.120
06:000.350.350.2200.20.20.220
07:000.150.150.15120.150.150.1512
08:000.180.180.18120.180.180.1812
09:000.20.20.2120.20.20.212
10:000.160.160.16120.160.160.1612
11:000.190.190.19120.190.190.1912
12:000.190.190.19120.190.190.1912
13:000.20.20.2120.20.20.212
14:000.20.20.2120.20.20.212
15:000.20.20.2120.20.20.212
16:000.170.170.17120.170.170.1712
17:000.150.150.15120.150.150.1512
18:000.150.150.15120.150.150.1512
19:000.170.170.17120.170.170.1712
20:000.150.150.15120.150.150.1512
21:000.190.190.19120.190.190.1912
22:000.150.150.15120.150.150.1512
23:001.750.380.25200.990.250.2520