P-5

Ancillary Services Prices, Day Ahead Market

04/17/2008

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)
00:000.410.410.25450.250.250.2545
01:000.350.350.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:002.692.690.25450.250.250.2545
06:006.692.690.2577.530.250.250.2577.53
07:0014.360.840.583.570.50.583.5
08:00100.50.510070.50.5100
09:0073.220.55073.220.550
10:0073.210.55073.210.550
11:0073.210.55073.210.550
12:0073.210.55073.210.550
13:0073.210.55073.210.550
14:00103.240.55070.50.550
15:00103.240.55070.50.550
16:00103.240.55070.50.550
17:00103.240.55070.50.550
18:00103.240.55070.50.550
19:009.713.213.2152.719.713.213.2152.71
20:009.783.283.2852.789.783.283.2852.78
21:009.813.313.31559.813.313.3155
22:00320.50.55570.50.555
23:006.580.390.3450.30.30.345