P-5

Ancillary Services Prices, Day Ahead Market

02/13/2008

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)
00:0074.593.4109.2674.593.4109.26
01:00753.4109.01753.4109.01
02:00753.4108.98753.4108.98
03:00553.4105.1553.4105.1
04:00553.4107.41553.4107.41
05:00455488.75444488.75
06:0027.55472.7810.274472.78
07:0024.765486.7623.764486.76
08:0028.35547527.354475
09:0019.555461.5518.554461.55
10:00455463.1120.114463.11
11:00455462194462
12:00455464.3121.314464.31
13:0044.755461.7518.754461.75
14:0037.265456.9613.964456.96
15:0040.265457.2614.264457.26
16:0045548027.624480
17:0036.550.58070.50.580
18:0036.55383.749.53383.74
19:0036.550.552.6770.50.552.67
20:0036.550.55070.50.550
21:0019.555461.5518.554461.55
22:0028.165470.1627.164470.16
23:004.594.59448.7544448.75