P-5

Ancillary Service Prices, Day Ahead Market

12/30/2004

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)
00:000.50.50.5200.50.50.520
01:000.840.840.84200.840.840.8420
02:000.840.840.84200.840.840.8420
03:000.840.840.84200.840.840.8420
04:000.840.840.84200.840.840.8420
05:001.750.990.99201.750.990.9920
06:0030.990.992030.990.9920
07:0030.370.372030.370.3720
08:00120.340.3420120.340.3420
09:00120.340.3414120.340.3414
10:00120.20.220120.20.220
11:0060.20.21460.20.214
12:0060.20.21460.20.214
13:0060.330.331460.330.3314
14:0060.20.21460.20.214
15:0060.20.22060.20.220
16:00120.330.3320120.330.3320
17:00120.390.3935120.390.3935
18:00120.390.3920120.390.3920
19:00120.390.3920120.390.3920
20:00120.20.220120.20.220
21:00120.20.235120.20.235
22:00120.350.3565120.350.3565
23:0030.990.992030.990.9920