P-5

Ancillary Services Prices, Day Ahead Market

04/21/2008

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)
00:000.840.840.25450.250.250.2545
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
05:000.840.840.25450.250.250.2545
06:0018.792.690.252500.250.250.25250
07:0070.50.589.1170.50.589.11
08:0070.50.589.7470.50.589.74
09:009.813.313.3152.819.813.313.3152.81
10:009.743.242.3451.848.842.342.3451.84
11:009.743.241.3350.837.831.331.3350.83
12:009.83.33.352.89.83.33.352.8
13:009.743.243.2452.749.743.243.2452.74
14:009.733.230.55070.50.550
15:009.823.323.3252.829.823.323.3252.82
16:009.743.243.2452.749.743.243.2452.74
17:009.743.243.2452.749.743.243.2452.74
18:009.723.220.55070.50.550
19:009.723.220.55070.50.550
20:009.823.323.3252.829.823.323.3252.82
21:0034.813.310.55070.50.550
22:00320.50.59570.50.595
23:00100.390.25450.250.250.2545