P-5

Ancillary Service Prices, Day Ahead Market

12/25/2003

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)
00:000.360.360.36200.360.360.3620
01:000.380.380.38200.380.380.3820
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.20.20.2200.20.20.220
05:000.380.380.38200.380.380.3820
06:001.750.840.5200.50.50.520
07:001.750.20.2171.750.20.217
08:001.750.20.2171.750.20.217
09:001.750.20.2171.750.20.217
10:001.750.180.18111.750.180.1811
11:001.750.170.17111.750.170.1711
12:001.750.170.17111.750.170.1711
13:001.750.170.17111.750.170.1711
14:001.750.170.17111.750.170.1711
15:001.750.180.18111.750.180.1811
16:001.990.170.17171.990.170.1717
17:003.250.170.17173.250.170.1717
18:003.250.180.18173.250.180.1817
19:003.250.160.16203.250.160.1620
20:003.250.180.18203.250.180.1820
21:003.250.20.2203.250.20.220
22:003.250.20.2203.250.20.220
23:003.250.840.84203.250.840.8420