P-5

Ancillary Services Prices, Day Ahead Market

07/20/2010

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)
00:000.160.160.01280.160.160.0128
01:000.160.160.01200.160.160.0120
02:000.160.160.0118.650.160.160.0118.65
03:000.160.160.0119.780.160.160.0119.78
04:000.160.160.01280.160.160.0128
05:000.160.160.01280.160.160.0128
06:000.250.250.01280.250.250.0128
07:002.71.440.1452.71.440.145
08:004.311.440.1454.311.440.145
09:004.591.440.332.34.591.440.332.3
10:006.181.440.530.726.181.440.530.72
11:009.212.710.6541.817.150.650.6541.81
12:009.549.540.6745.177.177.170.6745.17
13:00159.990.6745.177.172.160.6745.17
14:00159.990.6745.177.172.160.6745.17
15:00159.990.6745.177.172.160.6745.17
16:0016.499.990.6745.177.170.670.6745.17
17:00159.990.6745.177.172.160.6745.17
18:0016.499.990.54570.50.545
19:00990.535.6770.535.6
20:00770.532770.532
21:004.551.440.533.624.551.440.533.62
22:001.441.440.05451.441.440.0545
23:000.240.240.01280.240.240.0128