P-5

Ancillary Service Prices, Day Ahead Market

12/22/2003

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)
00:000.380.380.38200.380.380.3820
01:000.250.250.25200.250.250.2520
02:000.250.250.25200.250.250.2520
03:000.180.180.18200.180.180.1820
04:000.180.180.18200.180.180.1820
05:000.380.380.38200.380.380.3820
06:001.750.50.5200.50.50.520
07:003.250.20.2173.250.20.217
08:0030.20.21730.20.217
09:0030.20.21730.20.217
10:0030.180.181130.180.1811
11:0030.20.21130.20.211
12:001.990.20.2111.990.20.211
13:0030.20.21130.20.211
14:0030.20.21130.20.211
15:001.750.20.2111.750.20.211
16:003.250.20.2173.250.20.217
17:003.250.20.2173.250.20.217
18:001.990.20.2111.990.20.211
19:003.250.20.2113.250.20.211
20:001.990.180.18201.990.180.1820
21:00100.50.520100.50.520
22:003.250.20.2203.250.20.220
23:0030.50.52030.50.520