P-5

Ancillary Service Prices, Day Ahead Market

12/24/2004

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)
00:000.30.30.3200.30.30.320
01:000.250.250.25200.250.250.2520
02:000.170.170.17200.170.170.1720
03:000.170.170.17200.170.170.1720
04:000.250.250.25200.250.250.2520
05:000.50.50.5200.50.50.520
06:000.50.50.5200.50.50.520
07:001.750.20.2201.750.20.220
08:001.750.20.2201.750.20.220
09:001.750.20.2141.750.20.214
10:001.750.20.2141.750.20.214
11:001.750.180.18141.750.180.1814
12:000.180.180.18140.180.180.1814
13:000.180.180.18140.180.180.1814
14:000.180.180.18140.180.180.1814
15:000.190.190.19140.190.190.1914
16:001.750.20.2201.750.20.220
17:001.750.20.2201.750.20.220
18:001.750.20.2201.750.20.220
19:000.50.50.5140.50.50.514
20:0030.20.21430.20.214
21:0030.20.21430.20.214
22:0030.20.21430.20.214
23:0030.840.842030.840.8420