P-5

Ancillary Service Prices, Day Ahead Market

12/17/2004

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)
00:000.840.840.84200.840.840.8420
01:000.450.450.45200.450.450.4520
02:000.450.450.45200.450.450.4520
03:000.450.450.45200.450.450.4520
04:000.450.450.45200.450.450.4520
05:000.990.990.99200.990.990.9920
06:001.990.990.99201.990.990.9920
07:001.990.350.35201.990.350.3520
08:00120.350.3520120.350.3520
09:001.990.350.35141.990.350.3514
10:001.990.340.34141.990.340.3414
11:001.990.340.34141.990.340.3414
12:001.990.20.2141.990.20.214
13:001.750.20.2141.750.20.214
14:001.750.330.33141.750.330.3314
15:001.990.330.33141.990.330.3314
16:00120.330.3320120.330.3320
17:00120.390.3920120.390.3920
18:00120.390.3920120.390.3920
19:00120.390.3920120.390.3920
20:00120.330.3320120.330.3320
21:00120.330.3320120.330.3320
22:001.990.340.34141.990.340.3414
23:001.750.840.84201.750.840.8420