P-5

Ancillary Service Prices, Day Ahead Market

08/20/2003

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)
00:000.630.630.6250.60.60.625
01:000.640.640.4250.60.60.425
02:000.640.640.4250.60.60.425
03:000.640.640.4190.60.60.419
04:000.640.640.4190.60.60.419
05:000.640.640.4190.60.60.419
06:000.630.630.4190.60.60.419
07:000.60.60.6250.60.60.625
08:002.20.60.6142.20.60.614
09:003.250.60.6143.250.60.614
10:002.50.60.6142.50.60.614
11:003.250.60.6103.250.60.610
12:002.50.60.6102.50.60.610
13:002.50.60.6102.50.60.610
14:002.51.251.25102.51.251.2510
15:003.251.461.46103.251.461.4610
16:003.251.41.4103.251.41.410
17:002.51.251.25142.51.251.2514
18:003.251.251.25143.251.251.2514
19:003.250.60.6143.250.60.614
20:003.250.60.619.53.250.60.619.5
21:003.250.60.619.53.250.60.619.5
22:0030.60.619.530.60.619.5
23:002.50.680.6819.52.50.680.6819.5