P-5

Ancillary Services Prices, Day Ahead Market

07/18/2009

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)
00:003.363.360.18280.250.250.1828
01:003.393.390.15280.250.250.1528
02:003.393.390.1527.380.250.250.1527.38
03:000.250.250.15280.250.250.1528
04:000.250.250.15280.250.250.1528
05:003.333.330.15280.250.250.1528
06:003.333.330.15280.250.250.1528
07:003.373.370.15283.373.370.1528
08:0053.40.172853.40.1728
09:0053.890.52853.890.528
10:005.113.460.5285.113.460.528
11:0073.390.52873.390.528
12:008.793.390.52871.60.528
13:009.893.390.52870.50.528
14:009.973.470.52870.50.528
15:009.973.470.52870.50.528
16:008.633.371.2128.717.712.451.2128.71
17:005.613.370.9928.495.613.370.9928.49
18:005.53.370.5285.53.370.528
19:0053.370.52853.370.528
20:005.073.370.5285.073.370.528
21:005.363.460.5285.363.460.528
22:0053.40.52853.40.528
23:003.393.390.25280.250.250.2528