P-5

Ancillary Service Prices, Day Ahead Market

08/07/2004

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)
00:000.250.250.25200.250.250.2520
01:000.990.990.99200.990.990.9920
02:000.180.180.18200.180.180.1820
03:000.180.180.18200.180.180.1820
04:000.180.180.18200.180.180.1820
05:000.180.180.18200.180.180.1820
06:000.250.250.25200.250.250.2520
07:000.250.250.25140.250.250.2514
08:000.20.20.2140.20.20.214
09:000.20.20.2140.20.20.214
10:000.20.20.2140.20.20.214
11:001.990.190.19141.990.190.1914
12:001.990.190.19141.990.190.1914
13:001.990.190.19141.990.190.1914
14:001.990.190.19141.990.190.1914
15:001.990.190.19141.990.190.1914
16:001.990.180.18141.990.180.1814
17:001.990.180.18141.990.180.1814
18:001.990.180.18141.990.180.1814
19:000.990.180.18140.990.180.1814
20:000.190.190.19140.190.190.1914
21:000.20.20.2140.20.20.214
22:000.20.20.2140.20.20.214
23:001.421.421.42201.421.421.4220