P-5

Ancillary Services Prices, Day Ahead Market

04/12/2010

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)
00:002.142.140.11280.250.250.1128
01:002.142.140.11280.250.250.1128
02:002.142.140.11280.250.250.1128
03:000.310.310.11280.250.250.1128
04:000.310.310.11280.250.250.1128
05:002.142.140.11280.250.250.1128
06:002.152.150.11280.250.250.1128
07:006.012.170.25326.012.170.2532
08:0072.170.253272.170.2532
09:0052.170.253252.170.2532
10:0072.170.253272.170.2532
11:0072.170.253272.170.2532
12:0052.180.252752.180.2527
13:0052.170.252752.170.2527
14:0052.170.252752.170.2527
15:0052.170.252752.170.2527
16:0052.160.252752.160.2527
17:003.422.160.25273.422.160.2527
18:002.282.160.2529.822.282.160.2529.82
19:0072.180.253272.180.2532
20:006.952.170.25326.952.170.2532
21:002.172.170.25322.172.170.2532
22:002.172.170.24322.172.170.2432
23:000.510.510.11280.250.250.1128