P-5

Ancillary Service Prices, Day Ahead Market

10/26/2004

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
01:000.120.120.12200.120.120.1220
02:000.120.120.12200.120.120.1220
03:000.120.120.12200.120.120.1220
04:000.120.120.12200.120.120.1220
05:000.840.840.84500.840.840.8450
06:0040.250.257540.250.2575
07:0040.150.157540.150.1575
08:0040.150.157540.150.1575
09:0040.150.157540.150.1575
10:0040.150.157540.150.1575
11:0040.150.151440.150.1514
12:0040.150.151440.150.1514
13:0040.150.151440.150.1514
14:0040.150.151440.150.1514
15:0040.150.151440.150.1514
16:0040.150.157540.150.1575
17:0040.150.157540.150.1575
18:00120.150.1517.49120.150.1517.49
19:00120.150.1517.49120.150.1517.49
20:0040.150.157540.150.1575
21:0040.150.157540.150.1575
22:0030.150.155030.150.1550
23:000.840.840.84200.840.840.8420