P-5

Ancillary Service Prices, Day Ahead Market

08/14/2003

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)
00:000.60.480.48250.60.480.4825
01:000.50.50.35250.50.50.3525
02:000.50.50.5250.50.50.525
03:000.50.50.5190.50.50.519
04:000.50.50.5190.50.50.519
05:000.50.50.5190.50.50.519
06:000.480.480.48190.480.480.4819
07:000.550.550.55210.550.550.5521
08:002.20.550.55142.20.550.5514
09:002.20.50.5142.20.50.514
10:002.20.50.5142.20.50.514
11:002.20.50.5102.20.50.510
12:002.20.50.5102.20.50.510
13:00100.550.5510100.550.5510
14:003.250.550.55103.250.550.5510
15:003.250.60.6103.250.60.610
16:002.50.60.6102.50.60.610
17:0030.50.51430.50.514
18:002.20.50.5102.20.50.510
19:002.20.50.5102.20.50.510
20:002.20.50.5102.20.50.510
21:002.20.550.5519.52.20.550.5519.5
22:002.20.50.519.52.20.50.519.5
23:000.60.60.619.50.60.60.619.5