P-5

Ancillary Services Prices, Day Ahead Market

05/22/2009

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)
00:002.592.590.25320.250.250.2532
01:002.692.690.25320.250.250.2532
02:002.692.690.25320.250.250.2532
03:000.250.250.25320.250.250.2532
04:002.692.690.25320.250.250.2532
05:002.692.690.25320.250.250.2532
06:003.323.320.25320.250.250.2532
07:0073.40.532.7673.40.532.76
08:006.083.380.5326.083.380.532
09:006.953.380.5326.953.380.532
10:009.893.390.53270.50.532
11:0010.393.89233.58.52233.5
12:009.523.362.8734.379.373.212.8734.37
13:00103.53.535103.53.535
14:009.893.393.3934.899.893.393.3934.89
15:009.883.383.3534.859.853.353.3534.85
16:009.883.383.0334.539.533.033.0334.53
17:0011.735.233.3534.859.853.353.3534.85
18:007.273.380.7732.277.273.380.7732.27
19:006.53.380.5326.53.380.532
20:0073.360.53273.360.532
21:006.853.380.5326.853.380.532
22:005.53.40.5325.53.40.532
23:003.393.390.25320.250.250.2532