P-5

Ancillary Service Prices, Day Ahead Market

12/11/2003

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)
00:000.120.120.12200.120.120.1220
01:000.10.10.1200.10.10.120
02:000.10.10.1200.10.10.120
03:000.10.10.1200.10.10.120
04:000.10.10.1200.10.10.120
05:000.150.150.15200.150.150.1520
06:001.7510.15200.150.150.1520
07:001.750.150.15171.750.150.1517
08:003.250.150.15173.250.150.1517
09:0030.150.151730.150.1517
10:003.250.150.15113.250.150.1511
11:001.750.150.15111.750.150.1511
12:001.750.150.15111.750.150.1511
13:000.150.150.15110.150.150.1511
14:000.150.150.15110.150.150.1511
15:000.150.150.15110.150.150.1511
16:0030.20.21130.20.211
17:003.251.251.25173.251.251.2517
18:0031.051.051731.051.0517
19:0030.90.92030.90.920
20:003.250.180.18113.250.180.1811
21:003.250.180.18203.250.180.1820
22:003.250.150.15203.250.150.1520
23:0030.50.52030.50.520