P-5

Ancillary Services Prices, Day Ahead Market

05/21/2005

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
01:000.20.20.2200.20.20.220
02:000.20.20.2200.20.20.220
03:000.20.20.2200.20.20.220
04:000.20.20.2200.20.20.220
05:000.250.250.25200.250.250.2520
06:000.840.840.25107.780.250.250.25107.78
07:0070.250.2597.8570.250.2597.85
08:0070.250.2596.0570.250.2596.05
09:0070.250.251470.250.2514
10:0070.330.331470.330.3314
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
20:0070.180.1816.4570.180.1816.45
21:0070.250.251470.250.2514
22:0070.20.21470.20.214
23:000.840.840.25200.250.250.2520