P-5

Ancillary Services Prices, Day Ahead Market

05/31/2007

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)
00:000.180.180450.180.18045
01:000.180.180450.180.18045
02:000.170.170450.170.17045
03:000.130.130450.130.13045
04:000.130.130450.130.13045
05:000.170.170450.170.17045
06:000.180.180450.180.18045
07:003.993.990.1503.993.990.150
08:0074.390.55074.390.550
09:0012.45.90.55070.50.550
10:0018.9310251.58.52251.5
11:00147.53.2852.789.783.283.2852.78
12:0016.5103.5653.0610.063.563.5653.06
13:0018.91103.653.110.13.63.653.1
14:0018.91103.7553.2510.253.753.7553.25
15:00147.5453.510.54453.5
16:00147.53.9753.4710.473.973.9753.47
17:0029.31103.5858.6710.083.583.5858.67
18:00147.53.0952.599.593.093.0952.59
19:0025.52102.0751.578.572.072.0751.57
20:00147.5251.58.52251.5
21:00104.59248.58.53.09248.5
22:0074.39248.574.39248.5
23:002.642.640.2350.250.250.235