P-5

Ancillary Services Prices, Day Ahead Market

12/17/2008

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)
00:002.322.320.3450.30.30.345
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:002.342.340.3450.30.30.345
06:002.372.370.354.750.30.30.354.75
07:0072.380.54572.380.545
08:008.722.372.2246.728.722.372.2246.72
09:008.212.371.7146.218.212.371.7146.21
10:008.212.361.7146.218.212.361.7146.21
11:007.972.361.4745.977.972.361.4745.97
12:007.552.361.0545.557.552.361.0545.55
13:007.432.360.9345.437.432.360.9345.43
14:003.312.360.9945.493.312.360.9945.49
15:004.092.360.5454.092.360.545
16:007.972.331.4745.977.972.331.4745.97
17:0014.372.372.3752.3714.372.372.3752.37
18:008.852.352.3546.858.852.352.3546.85
19:008.142.321.6446.148.142.321.6446.14
20:006.952.341.1245.626.952.341.1245.62
21:008.862.362.3646.868.862.362.3646.86
22:004.612.370.5454.612.370.545
23:002.332.330.3450.30.30.345