P-5

Ancillary Services Prices, Day Ahead Market

06/22/2008

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)
00:000.410.410.25450.250.250.2545
01:002.692.690.25450.250.250.2545
02:002.692.690.25450.250.250.2545
03:000.250.250.2550.820.250.250.2550.82
04:000.20.20.252.620.20.20.252.62
05:000.20.20.257.640.20.20.257.64
06:000.250.250.2556.870.250.250.2556.87
07:0073.890.56073.890.560
08:0073.490.56073.490.560
09:008.754.390.56072.640.560
10:0010.894.390.56070.50.560
11:0011.094.590.56070.50.560
12:0011.094.590.56070.50.560
13:0011.094.590.56070.50.560
14:0011.094.590.56070.50.560
15:0011.094.590.56070.50.560
16:0011.34.80.56070.50.560
17:0010.794.290.56070.50.560
18:0010.794.290.56070.50.560
19:0010.393.890.56070.50.560
20:0010.794.290.56070.50.560
21:0011.094.590.56070.50.560
22:0010.74.20.55070.50.550
23:003.893.890.25450.250.250.2545