P-5

Ancillary Services Prices, Day Ahead Market

08/23/2007

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)
00:000.250.250.1450.250.250.145
01:000.20.20.1450.20.20.145
02:000.20.20.1450.20.20.145
03:000.20.20.1450.20.20.145
04:000.20.20.1450.20.20.145
05:000.20.20.1450.20.20.145
06:000.250.250.148.330.250.250.148.33
07:000.480.480.1500.480.480.150
08:003.093.090.1503.093.090.150
09:004.994.990.48554.994.990.4855
10:005.785.780.48555.785.780.4855
11:00770.4855770.4855
12:0074.990.486074.990.4860
13:00770.4860770.4860
14:007.57.50.4860770.4860
15:008.527.50.486075.980.4860
16:0011.514.990.486070.480.4860
17:008.774.990.486073.220.4860
18:0074.990.55574.990.555
19:005.744.990.48555.744.990.4855
20:0074.990.485574.990.4855
21:0074.990.485574.990.4855
22:0072.970.485072.970.4850
23:000.250.250.25450.250.250.2545