P-5

Ancillary Services Prices, Day Ahead Market

05/20/2009

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)
00:002.492.490.25320.250.250.2532
01:002.642.640.25320.250.250.2532
02:002.642.640.25320.250.250.2532
03:002.642.640.25320.250.250.2532
04:002.642.640.25320.250.250.2532
05:002.642.640.25320.250.250.2532
06:002.592.590.25320.250.250.2532
07:0073.420.53873.420.538
08:006.443.390.540.966.443.390.540.96
09:0073.390.53273.390.532
10:0073.380.53273.380.532
11:009.893.390.53270.50.532
12:009.893.390.53270.50.532
13:009.893.390.53270.50.532
14:009.893.390.53270.50.532
15:009.893.390.53270.50.532
16:008.513.380.53271.870.532
17:007.593.380.53272.790.532
18:006.53.380.5326.53.380.532
19:006.53.380.5326.53.380.532
20:0073.380.53273.380.532
21:005.453.390.5325.453.390.532
22:003.43.40.5323.43.40.532
23:003.323.320.25320.250.250.2532