P-5

Ancillary Service Prices, Day Ahead Market

01/28/2004

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)
00:000.250.250.25250.250.250.2525
01:000.160.160.16250.160.160.1625
02:000.150.150.15200.150.150.1520
03:000.150.150.15200.150.150.1520
04:000.160.160.16200.160.160.1620
05:000.160.160.16250.160.160.1625
06:00120.370.3725120.370.3725
07:00120.190.1925120.190.1925
08:00120.190.1925120.190.1925
09:00120.20.225120.20.225
10:00120.20.211120.20.211
11:00120.20.211120.20.211
12:00120.20.211120.20.211
13:00120.20.211120.20.211
14:00120.20.211120.20.211
15:00120.20.211120.20.211
16:00120.20.225120.20.225
17:00120.590.5925120.590.5925
18:00120.380.3825120.380.3825
19:003.250.380.38253.250.380.3825
20:00120.350.3525120.350.3525
21:00120.20.225120.20.225
22:003.250.160.16253.250.160.1625
23:003.250.190.19253.250.190.1925