P-5

Ancillary Services Prices, Day Ahead Market

07/25/2007

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)
00:000.160.160.1450.160.160.145
01:000.180.180.1450.180.180.145
02:000.160.160.1450.160.160.145
03:000.160.160.1450.160.160.145
04:000.160.160.1450.160.160.145
05:000.160.160.150.320.160.160.150.32
06:000.140.140.147.240.140.140.147.24
07:000.20.20.1500.20.20.150
08:002.592.590.1502.592.590.150
09:003.083.080.5553.083.080.555
10:004.393.090.5554.393.090.555
11:006.953.090.5556.953.090.555
12:0073.080.53773.080.537
13:0073.070.53773.070.537
14:0073.070.53773.070.537
15:0073.070.53773.070.537
16:0073.050.55573.050.555
17:0073.050.55573.050.555
18:0073.050.55573.050.555
19:003.053.050.5553.053.050.555
20:005.313.050.5555.313.050.555
21:0073.090.55573.090.555
22:0073.490.55073.490.550
23:002.642.640.25450.250.250.2545