P-5

Ancillary Service Prices, Day Ahead Market

03/17/2004

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)
00:001.750.50.5251.750.50.525
01:001.750.840.84251.750.840.8425
02:001.750.840.84201.750.840.8420
03:001.750.840.84201.750.840.8420
04:001.750.840.84201.750.840.8420
05:0030.50.52030.50.520
06:003.251.251.25203.251.251.2520
07:003.250.20.2353.250.20.235
08:003.250.20.2353.250.20.235
09:003.250.20.2353.250.20.235
10:003.250.20.2113.250.20.211
11:003.250.20.2113.250.20.211
12:003.250.20.2113.250.20.211
13:003.250.180.18113.250.180.1811
14:003.250.180.18113.250.180.1811
15:003.250.180.18113.250.180.1811
16:003.250.180.18353.250.180.1835
17:003.250.20.2353.250.20.235
18:00120.20.211120.20.211
19:003.250.20.2113.250.20.211
20:003.250.20.2253.250.20.225
21:003.250.20.2253.250.20.225
22:003.250.190.19253.250.190.1925
23:003.250.20.2253.250.20.225