P-5

Ancillary Services Prices, Day Ahead Market

03/31/2010

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)
00:003.433.290.11280.250.110.1128
01:003.433.290.11280.250.110.1128
02:000.30.30.11280.250.250.1128
03:000.30.30.11280.250.250.1128
04:000.30.30.11280.250.250.1128
05:003.433.290.11280.250.110.1128
06:003.433.290.1133.330.250.110.1133.33
07:0073.290.253773.290.2537
08:0053.290.254553.290.2545
09:0053.290.253253.290.2532
10:005.113.290.25325.113.290.2532
11:0053.290.253253.290.2532
12:004.793.290.25324.793.290.2532
13:0043.290.253243.290.2532
14:0053.290.253253.290.2532
15:0053.290.253253.290.2532
16:0053.290.253253.290.2532
17:006.363.290.2534.576.363.290.2534.57
18:0073.290.254573.290.2545
19:0073.290.253273.290.2532
20:0073.290.253273.290.2532
21:00220.2532220.2532
22:00220.2532220.2532
23:000.470.470.11280.250.250.1128