P-5

Ancillary Services Prices, Day Ahead Market

12/23/2008

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)
00:000.30.30.3450.30.30.345
01:000.250.250.25450.250.250.2545
02:000.250.250.25450.250.250.2545
03:000.250.250.25450.250.250.2545
04:000.250.250.25450.250.250.2545
05:000.250.250.25450.250.250.2545
06:0054.790.3450.30.30.345
07:0010.894.390.545.2270.50.545.22
08:0010.794.293.5448.0410.043.543.5448.04
09:0010.444.29347.59.53.35347.5
10:009.53.89347.59.53.89347.5
11:009.53.89347.59.53.89347.5
12:009.53.89347.59.53.89347.5
13:008.233.891.7346.238.233.891.7346.23
14:008.213.891.7146.218.213.891.7146.21
15:009.53.89347.59.53.89347.5
16:0010.043.543.5448.0410.043.543.5448.04
17:0024.733.853.8573.1624.733.853.8573.16
18:0031.843.893.670.4431.553.63.670.44
19:0022.583.853.8560.822.583.853.8560.8
20:0010.393.893.5448.0410.043.543.5448.04
21:009.53.89347.59.53.89347.5
22:0010.794.290.54570.50.545
23:004.194.190.3450.30.30.345