P-5

Ancillary Services Prices, Day Ahead Market

02/27/2009

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
01:000.250.250.25450.250.250.2545
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.25450.250.250.2545
06:003.373.370.2547.760.250.250.2547.76
07:0073.410.545.2573.410.545.25
08:009.93.42.75499.252.752.7549
09:009.963.46246.58.52246.5
10:009.953.45246.58.52246.5
11:0011.164.660.54570.50.545
12:0011.755.250.54570.50.545
13:0011.755.250.54570.50.545
14:0011.755.250.54570.50.545
15:009.963.460.54570.50.545
16:009.873.370.545.0970.50.545.09
17:009.883.38248.288.52248.28
18:00103.53.549.75103.53.549.75
19:009.953.45246.58.52246.5
20:009.953.453.3947.899.893.393.3947.89
21:007.933.371.4345.937.933.371.4345.93
22:0073.370.54573.370.545
23:003.373.370.3450.30.30.345