P-5

Ancillary Services Prices, Day Ahead Market

05/27/2010

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)
00:000.430.430.03280.250.250.0328
01:000.20.20.03280.20.20.0328
02:000.20.20.03280.20.20.0328
03:000.20.20.03280.20.20.0328
04:000.20.20.03280.20.20.0328
05:000.430.430.03280.250.250.0328
06:000.430.430.03280.250.250.0328
07:005.045.040.09305.045.040.0930
08:0075.040.093075.040.0930
09:0075.040.183075.040.1830
10:0075.040.183075.040.1830
11:0075.040.183075.040.1830
12:0075.040.1826.6675.040.1826.66
13:0011.865.040.183070.180.1830
14:0075.040.183075.040.1830
15:009.885.040.183072.160.1830
16:0011.565.040.183070.480.1830
17:0075.040.183075.040.1830
18:0075.040.183075.040.1830
19:0075.040.183075.040.1830
20:0075.040.1822.875.040.1822.8
21:0075.040.1823.7175.040.1823.71
22:005.045.040.09305.045.040.0930
23:000.740.740.03300.250.250.0330