P-5

Ancillary Services Prices, Day Ahead Market

12/28/2007

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
05:000.20.20.2450.20.20.245
06:000.250.250.2576.360.250.250.2576.36
07:0070.50.587.570.50.587.5
08:0092.52.59092.52.590
09:009.543.04362.59.53362.5
10:008.753.032.2561.758.753.032.2561.75
11:008.53.03261.58.53.03261.5
12:009.543.042.2561.758.752.252.2561.75
13:009.543.04261.58.52261.5
14:007.953.031.4560.957.953.031.4560.95
15:009.543.041.4660.967.961.461.4660.96
16:0014.893.04379.9412.023379.94
17:0020.083.03388.0520.053388.05
18:0018.353.03386.3218.323386.32
19:0010.293.03378.2610.263378.26
20:009.533.03377.59.53377.5
21:009.533.03367.59.53367.5
22:0070.50.510070.50.5100
23:000.250.250.25450.250.250.2545