P-5

Ancillary Services Prices, Day Ahead Market

07/24/2007

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)
00:000.250.250.25450.250.250.2545
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.20.20.249.870.20.20.249.87
06:000.250.250.2546.940.250.250.2546.94
07:002.642.640.5502.642.640.550
08:0073.090.55073.090.550
09:0073.090.55573.090.555
10:009.573.070.55570.50.555
11:009.593.090.55570.50.555
12:009.563.060.55570.50.555
13:009.583.080.55570.50.555
14:009.583.080.55570.50.555
15:009.583.080.55570.50.555
16:009.563.060.55570.50.555
17:009.563.060.55570.50.555
18:0011.243.080.55570.50.555
19:008.513.050.55571.540.555
20:009.233.050.55570.820.555
21:009.573.070.55570.50.555
22:0073.090.55073.090.550
23:000.840.840.25450.250.250.2545