P-5

Ancillary Service Prices, Day Ahead Market

01/29/2004

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)
00:000.170.170.17250.170.170.1725
01:000.110.110.11250.110.110.1125
02:000.110.110.11200.110.110.1120
03:000.110.110.11200.110.110.1120
04:000.110.110.11200.110.110.1120
05:000.180.180.18250.180.180.1825
06:001.750.350.35251.750.350.3525
07:001.750.160.16251.750.160.1625
08:00150.160.1625150.160.1625
09:00150.170.1725150.170.1725
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
14:003.250.150.15113.250.150.1511
15:003.250.150.15113.250.150.1511
16:00150.150.1525150.150.1525
17:003.250.50.5253.250.50.525
18:003.250.50.5113.250.50.511
19:003.250.50.5253.250.50.525
20:003.250.180.18253.250.180.1825
21:001.750.190.19251.750.190.1925
22:001.750.170.17251.750.170.1725
23:00150.190.1925150.190.1925