P-5

Ancillary Services Prices, Day Ahead Market

05/18/2010

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)
00:001.881.670.04280.250.040.0428
01:001.881.670.04280.250.040.0428
02:001.881.670.04280.250.040.0428
03:001.881.670.04280.250.040.0428
04:001.881.670.04280.250.040.0428
05:001.881.670.04280.250.040.0428
06:000.830.620.04280.250.040.0428
07:0073.170.13073.170.130
08:0073.170.173073.170.1730
09:0011.883.230.173070.170.1730
10:0010.033.20.173070.170.1730
11:0010.033.20.173070.170.1730
12:0010.043.210.173070.170.1730
13:0010.053.220.173070.170.1730
14:0010.043.210.173070.170.1730
15:0010.013.180.173070.170.1730
16:0015.963.230.173070.170.1730
17:0010.073.230.173070.170.1730
18:0073.170.173073.170.1730
19:0073.170.173073.170.1730
20:0010.013.180.173070.170.1730
21:007.013.170.173073.160.1730
22:0073.170.13073.170.130
23:002.352.350.08300.250.250.0830