P-5

Ancillary Services Prices, Day Ahead Market

08/25/2007

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)
00:000.20.20450.20.2045
01:000.20.20450.20.2045
02:000.20.20450.20.2045
03:000.180.180450.180.18045
04:000.180.180450.180.18045
05:000.180.180450.180.18045
06:000.160.160450.160.16045
07:000.150.150500.150.15050
08:000.190.190500.190.19050
09:004.294.290.1554.294.290.155
10:004.794.790.1554.794.790.155
11:00770.555770.555
12:00770.560770.560
13:007.287.280.560770.560
14:00770.560770.560
15:0012.4512.450.560770.560
16:0012.4512.450.560770.560
17:008.658.650.560770.560
18:00770.555770.555
19:006.956.950.5556.956.950.555
20:00770.555770.555
21:00770.555770.555
22:003.433.090.5503.433.090.550
23:000.250.250.2450.250.250.245