P-5

Ancillary Services Prices, Day Ahead Market

12/20/2005

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)
00:000.250.250.17430.250.250.1743
01:000.20.20.17430.20.20.1743
02:000.20.20.17430.20.20.1743
03:000.20.20.17430.20.20.1743
04:000.20.20.17430.20.20.1743
05:000.250.250.17490.250.250.1749
06:003.0530.2500.250.20.250
07:007.060.250.195070.190.1950
08:007.060.250.195070.190.1950
09:009.530.54970.50.549
10:0070.50.54970.50.549
11:008.842.340.52870.50.528
12:008.842.340.52870.50.528
13:008.842.340.52870.50.528
14:007.090.590.52870.50.528
15:008.842.340.52870.50.528
16:0070.50.55070.50.550
17:0032.060.990.9968.7632.060.990.9968.76
18:0021.990.990.9952.9221.990.990.9952.92
19:0018.40.990.995018.40.990.9950
20:0013.690.990.995013.690.990.9950
21:0070.50.54970.50.549
22:0070.250.254970.250.2549
23:003.0530.2430.250.20.243