P-5

Ancillary Service Prices, Day Ahead Market

12/13/2003

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)
00:001.750.840.5200.50.50.520
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
05:001.750.840.5200.50.50.520
06:001.750.840.5200.50.50.520
07:001.750.180.18171.750.180.1817
08:003.250.150.15173.250.150.1517
09:003.250.150.15173.250.150.1517
10:003.250.150.15113.250.150.1511
11:003.250.150.15113.250.150.1511
12:003.250.150.15113.250.150.1511
13:003.250.150.15113.250.150.1511
14:001.990.150.15111.990.150.1511
15:003.250.150.15113.250.150.1511
16:003.250.150.15173.250.150.1517
17:003.250.90.9173.250.90.917
18:003.250.50.5173.250.50.517
19:003.250.50.5203.250.50.520
20:00100.150.1520100.150.1520
21:003.250.150.15203.250.150.1520
22:003.250.150.15203.250.150.1520
23:001.750.180.18201.750.180.1820