P-5

Ancillary Services Prices, Day Ahead Market

05/30/2005

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)
00:000.250.250.25200.250.250.2520
01:000.250.250.25200.250.250.2520
02:000.250.250.25200.250.250.2520
03:000.250.250.25200.250.250.2520
04:000.250.250.25200.250.250.2520
05:000.250.250.25200.250.250.2520
06:000.840.840.25141.270.250.250.25141.27
07:0070.250.25127.370.250.25127.3
08:0070.250.25120.8770.250.25120.87
09:0070.250.2514.3270.250.2514.32
10:0070.250.251470.250.2514
11:0070.250.251470.250.2514
12:0070.250.251470.250.2514
13:0070.250.251470.250.2514
14:0070.250.251470.250.2514
15:0070.250.251470.250.2514
16:0070.250.251470.250.2514
17:0070.250.251470.250.2514
18:0070.250.251470.250.2514
19:0070.250.251470.250.2514
20:0070.250.251470.250.2514
21:0070.250.251470.250.2514
22:0070.250.251470.250.2514
23:000.840.840.25200.250.250.2520