P-5

Ancillary Service Prices, Day Ahead Market

05/15/2003

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)
00:001.551.551.42991.551.551.4299
01:001.61.61.45991.61.61.4599
02:001.61.61.45991.61.61.4599
03:001.61.61.45161.61.61.4516
04:001.61.61.45161.61.61.4516
05:001.61.61.45161.61.61.4516
06:002.52.51.45951.851.451.4595
07:002.81.351.35992.81.351.3599
08:002.81.351.359.52.81.351.359.5
09:002.81.41.49.52.81.41.49.5
10:002.81.41.49.52.81.41.49.5
11:002.81.41.49.52.81.41.49.5
12:002.81.41.49.52.81.41.49.5
13:002.81.41.49.52.81.41.49.5
14:002.81.41.49.52.81.41.49.5
15:002.81.41.49.52.81.41.49.5
16:002.81.41.49.52.81.41.49.5
17:002.81.41.49.52.81.41.49.5
18:004.251.41.49.54.251.41.49.5
19:002.81.351.359.52.81.351.359.5
20:004.251.351.359.54.251.351.359.5
21:002.81.351.35992.81.351.3599
22:00451.351.3599451.351.3599
23:00452.511.4899451.481.4899