P-5

Ancillary Service Prices, Day Ahead Market

03/01/2003

Time Stamp	East				West
Time Stamp	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)
00:00	2.5	1.4	1.4	40	2.5	1.4	1.4	40
01:00	1.35	1.35	1.35	45	1.35	1.35	1.35	45
02:00	1.35	1.35	1.35	15.5	1.35	1.35	1.35	15.5
03:00	1.35	1.35	1.35	15.5	1.35	1.35	1.35	15.5
04:00	1.35	1.35	1.35	15.5	1.35	1.35	1.35	15.5
05:00	1.35	1.35	1.35	30	1.35	1.35	1.35	30
06:00	2.5	1.4	1.4	30	2.3	1.4	1.4	30
07:00	2.5	1.4	1.4	30	2.5	1.4	1.4	30
08:00	3.5	1.4	1.4	18	3.5	1.4	1.4	18
09:00	3.5	1.42	1.42	18	3.5	1.42	1.42	18
10:00	3.5	1.4	1.4	8.4	3.5	1.4	1.4	8.4
11:00	3.5	1.27	1.27	8.4	3.5	1.27	1.27	8.4
12:00	3.5	1.26	1.26	8.4	3.5	1.26	1.26	8.4
13:00	3.5	1.26	1.26	8.4	3.5	1.26	1.26	8.4
14:00	3.5	1.26	1.26	8.4	3.5	1.26	1.26	8.4
15:00	3.5	1.27	1.27	8.4	3.5	1.27	1.27	8.4
16:00	3.5	1.27	1.27	18	3.5	1.27	1.27	18
17:00	3.5	1.42	1.42	8.4	3.5	1.42	1.42	8.4
18:00	4.25	1.42	1.42	18	4.25	1.42	1.42	18
19:00	4.25	1.42	1.42	8.4	4.25	1.42	1.42	8.4
20:00	4.25	1.4	1.4	18	4.25	1.4	1.4	18
21:00	2.5	1.26	1.26	40	2.5	1.26	1.26	40
22:00	2.5	1.27	1.27	40	2.5	1.27	1.27	40
23:00	2.5	1.4	1.4	40	2.5	1.4	1.4	40