P-5

Ancillary Services Prices, Day Ahead Market

12/20/2007

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)
00:000.250.250.25450.250.250.2545
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.25450.250.250.2545
06:000.250.250.251000.250.250.25100
07:0070.840.57070.840.570
08:0070.50.57570.50.575
09:009.14.020.57571.920.575
10:0074.020.57574.020.575
11:0074.020.57574.020.575
12:0074.020.57574.020.575
13:0074.020.57574.020.575
14:0074.020.57574.020.575
15:0074.020.57574.020.575
16:006.954.020.5856.954.020.585
17:0010.534.03397.59.53397.5
18:0010.544.04397.59.53397.5
19:0010.524.020.8485.347.340.840.8485.34
20:008.394.021.8986.398.394.021.8986.39
21:009.144.020.57071.880.570
22:000.50.50.5500.50.50.550
23:000.250.250.25500.250.250.2550