P-5

Ancillary Services Prices, Day Ahead Market

07/23/2010

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)
00:000.270.270.01280.250.250.0128
01:000.240.240200.240.24020
02:000.20.20200.20.2020
03:000.20.20200.20.2020
04:000.20.20280.20.2028
05:000.20.20280.20.2028
06:000.260.260.01280.250.250.0128
07:004.011.420.1454.011.420.145
08:003.971.420.1453.971.420.145
09:004.011.420.22324.011.420.2232
10:006.451.420.531.876.451.420.531.87
11:0091.450.538.488.050.50.538.48
12:00159.990.54571.990.545
13:00209.990.54570.50.545
14:00209.990.54570.50.545
15:00209.990.54570.50.545
16:00209.990.54570.50.545
17:00209.990.54570.50.545
18:0016.499.990.54570.50.545
19:009.999.990.538.37770.538.37
20:008.288.280.533.98770.533.98
21:004.544.540.49324.544.540.4932
22:001.421.420.1451.421.420.145
23:000.270.270280.250.25028