P-5

Ancillary Services Prices, Day Ahead Market

12/24/2007

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)
00:000.250.250.2553.160.250.250.2553.16
01:000.20.20.255.280.20.20.255.28
02:000.20.20.2450.20.20.245
03:000.20.20.245.130.20.20.245.13
04:000.20.20.254.820.20.20.254.82
05:000.250.250.2597.930.250.250.2597.93
06:000.250.250.2598.250.250.250.2598.25
07:0070.50.5107.1970.50.5107.19
08:002.140.50.5103.092.140.50.5103.09
09:0072.950.56072.950.560
10:0072.940.56072.940.560
11:0072.940.56072.940.560
12:008.742.940.56071.20.560
13:007.142.940.56072.80.560
14:002.942.940.5602.942.940.560
15:0072.940.56072.940.560
16:009.432.930.582.4970.50.582.49
17:009.442.941.578.4981.51.578.49
18:007.622.931.1276.677.622.931.1276.67
19:0072.930.576.1172.930.576.11
20:0072.930.583.6172.930.583.61
21:009.442.940.56570.50.565
22:0070.50.55070.50.550
23:000.250.250.25450.250.250.2545