P-5

Ancillary Services Prices, Day Ahead Market

12/21/2005

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)
00:002.592.590.2430.250.250.243
01:000.250.250.17430.250.250.1743
02:000.20.20.17430.20.20.1743
03:000.20.20.17430.20.20.1743
04:000.250.250.17430.250.250.1743
05:00330.2490.250.250.249
06:003.0530.2750.250.20.275
07:0070.250.257570.250.2575
08:007.060.250.197570.190.1975
09:009.530.54970.50.549
10:007.911.410.54970.50.549
11:008.742.240.52870.50.528
12:007.090.590.52870.50.528
13:007.090.590.52870.50.528
14:007.090.590.52870.50.528
15:008.742.240.52870.50.528
16:0070.250.254970.250.2549
17:00400.990.9975400.990.9975
18:00300.990.9973.56300.990.9973.56
19:0018.980.990.9952.2518.980.990.9952.25
20:0014.410.250.2572.5314.410.250.2572.53
21:0070.250.2561.9470.250.2561.94
22:0070.250.2560.170.250.2560.1
23:003.0530.2430.250.20.243