P-5

Ancillary Services Prices, Day Ahead Market

12/19/2008

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)
00:000.250.250.25450.250.250.2545
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
06:002.372.370.25450.250.250.2545
07:0072.380.54572.380.545
08:007.622.361.1245.627.622.361.1245.62
09:007.492.360.9945.497.492.360.9945.49
10:008.852.351.1245.627.621.121.1245.62
11:0072.350.54572.350.545
12:008.842.350.54570.510.545
13:0072.350.54572.350.545
14:004.712.350.5454.712.350.545
15:007.722.350.54571.630.545
16:006.952.320.5456.952.320.545
17:0011.172.372.3749.1711.172.372.3749.17
18:008.042.342.3446.848.042.342.3446.84
19:006.952.321.7146.216.952.321.7146.21
20:008.842.342.3446.848.842.342.3446.84
21:008.852.352.3546.858.852.352.3546.85
22:006.932.360.5456.932.360.545
23:002.352.350.3450.30.30.345