P-5

Ancillary Service Prices, Day Ahead Market

12/22/2004

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)
00:000.30.30.3200.30.30.320
01:000.160.160.16200.160.160.1620
02:000.160.160.16200.160.160.1620
03:000.160.160.16200.160.160.1620
04:000.160.160.16200.160.160.1620
05:000.30.30.3200.30.30.320
06:001.750.30.3201.750.30.320
07:001.750.20.2201.750.20.220
08:001.750.20.2201.750.20.220
09:000.20.20.2140.20.20.214
10:000.180.180.1817.490.180.180.1817.49
11:000.180.180.18140.180.180.1814
12:000.170.170.17140.170.170.1714
13:000.170.170.17140.170.170.1714
14:000.170.170.17140.170.170.1714
15:000.170.170.17140.170.170.1714
16:001.750.180.18351.750.180.1835
17:0030.20.22030.20.220
18:001.750.20.2201.750.20.220
19:001.750.50.5141.750.50.514
20:001.990.20.2141.990.20.214
21:0060.20.21460.20.214
22:0060.20.22060.20.220
23:001.750.990.99201.750.990.9920