P-5

Ancillary Services Prices, Day Ahead Market

04/28/2008

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)
00:000.250.250.25450.250.250.2545
01:000.20.20.2450.20.20.245
02:000.20.20.2450.20.20.245
03:000.20.20.2450.20.20.245
04:000.20.20.2450.20.20.245
05:000.250.250.2545.830.250.250.2545.83
06:0016.663.090.252500.250.250.25250
07:0028.522.590.525070.50.5250
08:0070.50.510070.50.5100
09:009.663.160.55070.50.550
10:009.663.160.55070.50.550
11:0010.073.160.55070.50.550
12:009.653.150.55070.50.550
13:009.663.160.55070.50.550
14:009.653.150.55070.50.550
15:009.643.140.55070.50.550
16:009.643.140.55070.50.550
17:009.633.130.55070.50.550
18:0073.120.55073.120.550
19:009.643.140.55070.50.550
20:0011.693.150.55070.50.550
21:0034.673.170.55070.50.550
22:00320.50.55070.50.550
23:0013.190.250.25450.250.250.2545