Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

04/23/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 0.87 0.87 0.87 8.55
01:00 0.85 0.85 0.85 8.55
02:00 0.85 0.85 0.85 8.55
03:00 0.85 0.85 0.85 8.55
04:00 0.85 0.85 0.85 8.55
05:00 0.86 0.86 0.86 8.55
06:00 2.52 2.52 0.86 8.55
07:00 2.50 2.44 0.88 5.90
08:00 2.50 2.44 0.86 5.90
09:00 2.60 2.44 0.86 5.90
10:00 2.60 2.45 0.88 5.90
11:00 2.60 2.45 0.88 5.90
12:00 2.60 2.52 0.88 5.90
13:00 2.52 2.52 0.89 5.90
14:00 2.52 2.52 0.89 5.90
15:00 2.52 2.52 0.89 5.90
16:00 2.50 2.45 0.87 6.50
17:00 2.60 2.45 0.88 6.50
18:00 2.60 2.44 0.85 6.50
19:00 2.60 2.44 0.85 6.50
20:00 2.50 2.44 0.01 6.50
21:00 2.50 2.44 0.25 6.50
22:00 2.44 2.44 0.75 7.50
23:00 2.45 2.45 0.27 8.55