P-5

Ancillary Service Prices, Day Ahead Market

12/14/2004

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
01:000.370.370.37200.370.370.3720
02:000.370.370.37200.370.370.3720
03:000.370.370.37200.370.370.3720
04:000.370.370.37200.370.370.3720
05:000.990.990.99350.990.990.9935
06:0040.990.994040.990.9940
07:000.990.20.2400.990.20.240
08:0040.20.24040.20.240
09:0040.20.23540.20.235
10:0040.20.23540.20.235
11:0040.20.21440.20.214
12:0040.20.21440.20.214
13:0040.20.21440.20.214
14:0040.20.21440.20.214
15:001.990.20.2141.990.20.214
16:0050.20.24050.20.240
17:0060.390.393560.390.3935
18:0060.390.393560.390.3935
19:0040.390.3917.4940.390.3917.49
20:0050.450.453550.450.4535
21:001.990.370.37351.990.370.3735
22:0050.330.3317.4950.330.3317.49
23:000.990.990.99200.990.990.9920