P-5

Ancillary Services Prices, Day Ahead Market

09/23/2005

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)
00:001.591.590.1430.250.250.143
01:002.542.540.15430.250.250.1543
02:00110.15430.250.250.1543
03:00110.15430.250.250.1543
04:00110.15430.250.250.1543
05:002.492.490.15550.250.250.1555
06:002.692.690.17550.250.250.1755
07:0073.790.57573.790.575
08:0070.250.257570.250.2575
09:0010.393.890.57570.50.575
10:0070.50.574.3170.50.574.31
11:0070.50.57570.50.575
12:0016.5100.9839.557.480.980.9839.55
13:0024.93100.9847.9815.910.980.9847.98
14:0016.5100.9839.557.480.980.9839.55
15:0016.5100.9839.557.480.980.9839.55
16:0016.5100.98757.480.980.9875
17:0016.5100.98757.480.980.9875
18:0016.5100.57570.50.575
19:0010.890.780.78757.280.780.7875
20:00320.50.57570.50.575
21:00303.490.571.3570.50.571.35
22:00203.890.554.6370.50.554.63
23:003.093.090.25430.250.250.2543