P-5

Ancillary Service Prices, Day Ahead Market

08/15/2004

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)
00:000.050.050.05200.050.050.0520
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
05:000.10.10.1200.10.10.120
06:000.050.050.05200.050.050.0520
07:000.380.380.38140.380.380.3814
08:000.150.150.15140.150.150.1514
09:000.150.150.15140.150.150.1514
10:000.150.150.15140.150.150.1514
11:000.150.150.15140.150.150.1514
12:000.150.150.15140.150.150.1514
13:000.150.150.15140.150.150.1514
14:000.150.150.15140.150.150.1514
15:000.150.150.15140.150.150.1514
16:000.150.150.15140.150.150.1514
17:001.990.160.16141.990.160.1614
18:001.990.150.15141.990.150.1514
19:000.150.150.15140.150.150.1514
20:001.990.150.15141.990.150.1514
21:001.990.180.18141.990.180.1814
22:000.20.20.2140.20.20.214
23:000.450.450.45200.450.450.4520