P-5

Ancillary Services Prices, Day Ahead Market

05/19/2010

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)
00:003.563.360.05280.250.050.0528
01:003.533.350.07280.250.070.0728
02:000.360.360.07280.250.250.0728
03:000.360.360.07280.250.250.0728
04:000.360.360.07280.250.250.0728
05:003.553.350.05280.250.050.0528
06:002.092.090.07280.250.250.0728
07:0073.320.13073.320.130
08:0073.320.163073.320.1630
09:0010.163.330.173070.170.1730
10:0010.163.330.173070.170.1730
11:0011.063.330.1730.97.90.170.1730.9
12:0010.153.320.173070.170.1730
13:0010.163.330.173070.170.1730
14:0010.153.320.173070.170.1730
15:0010.183.350.173070.170.1730
16:0010.183.350.173070.170.1730
17:0010.163.330.173070.170.1730
18:008.083.320.173072.240.1730
19:007.690.860.173070.170.1730
20:0010.183.350.173070.170.1730
21:0070.850.173070.850.1730
22:007.690.850.163070.160.1630
23:002.091.910.07300.250.070.0730