P-5

Ancillary Services Prices, Day Ahead Market

08/31/2012

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)
00:001.521.520.065110.065
01:001.521.520.065110.065
02:00110.065110.065
03:000.20.20.065.490.20.20.065.49
04:000.20.20.066.480.20.20.066.48
05:00110.065.49110.065.49
06:001.521.520.065110.065
07:004.814.810.35220.35
08:004.814.810.312220.312
09:004.814.810.41124.814.810.4112
10:004.94.90.41204.94.90.4120
11:0010100.422010100.4220
12:0012.410.03320107.63320
13:0011.4610.03320108.57320
14:0017.0310.03320103320
15:0017.0310.03320103320
16:0019.2410.03225.63102225.63
17:0017.0310.03320103320
18:0010.0310.033201010320
19:009.649.6432099320
20:007.287.282207.287.28220
21:004.94.90.41204.94.90.4120
22:008.198.190.417.54.44.40.417.5
23:001.881.880.085110.085