P-5

Ancillary Services Prices, Day Ahead Market

06/30/2010

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)
00:000.250.10.03280.250.10.0328
01:000.20.10.01280.20.10.0128
02:000.20.10.01280.20.10.0128
03:000.20.10.01280.20.10.0128
04:000.20.10.01280.20.10.0128
05:000.20.10.01280.20.10.0128
06:000.250.10.01280.250.10.0128
07:004.430.430.05304.430.430.0530
08:004.430.440.05304.430.440.0530
09:0070.440.053070.440.0530
10:0070.440.053070.440.0530
11:004.430.440.05304.430.440.0530
12:0050.440.13050.440.130
13:0070.440.13070.440.130
14:0070.440.13070.440.130
15:0070.440.13070.440.130
16:0070.440.13070.440.130
17:006.040.440.1306.040.440.130
18:004.480.440.1304.480.440.130
19:003.170.440.1303.170.440.130
20:003.210.440.1303.210.440.130
21:000.430.430.1300.430.430.130
22:004.520.440.142.874.520.440.142.87
23:000.250.10.03300.250.10.0330