P-5

Ancillary Services Prices, Day Ahead Market

05/26/2010

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)
00:002.12.10.05280.250.250.0528
01:000.250.250.03280.250.250.0328
02:000.20.20.03280.20.20.0328
03:000.20.20.03280.20.20.0328
04:000.20.20.03280.20.20.0328
05:000.250.250.03280.250.250.0328
06:001.751.750.03280.250.250.0328
07:0075.040.13075.040.130
08:008.395.040.163073.650.1630
09:007.55.040.163074.540.1630
10:007.55.040.163074.540.1630
11:00105.040.53072.040.530
12:00105.040.53072.040.530
13:00105.040.53072.040.530
14:0011.155.040.53070.890.530
15:0011.545.040.53070.50.530
16:0011.545.040.53070.50.530
17:0011.545.040.53070.50.530
18:0011.545.040.53070.50.530
19:0075.040.53075.040.530
20:0075.040.163075.040.1630
21:007.885.040.163074.160.1630
22:007.55.040.163074.540.1630
23:002.692.690.03300.250.250.0330