P-5

Ancillary Service Prices, Day Ahead Market

10/30/2004

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)
00:000.450.450.45200.450.450.4520
01:000.840.840.84200.840.840.8420
02:000.840.840.84200.840.840.8420
03:000.840.840.84200.840.840.8420
04:000.840.840.84200.840.840.8420
05:0031.421.429531.421.4295
06:0031.41.49931.41.499
07:000.450.450.45950.450.450.4595
08:00120.450.4575120.450.4575
09:0030.320.321430.320.3214
10:0030.320.321430.320.3214
11:0030.20.21430.20.214
12:0030.20.21430.20.214
13:0030.20.21430.20.214
14:0030.20.21430.20.214
15:0030.20.21430.20.214
16:0030.20.21430.20.214
17:0030.20.21430.20.214
18:0030.20.21430.20.214
19:0030.20.21430.20.214
20:0030.20.21430.20.214
21:0030.20.21430.20.214
22:001.750.330.3317.51.750.330.3317.5
23:001.751.271.27201.751.271.2720