Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

04/21/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 2.43 2.43 1.15 8.75
01:00 1.92 1.92 0.94 8.75
02:00 1.92 1.92 0.94 8.55
03:00 1.92 1.92 0.94 8.55
04:00 1.92 1.92 0.94 8.55
05:00 1.98 1.98 0.94 8.55
06:00 2.51 2.51 0.90 8.55
07:00 2.75 2.51 1.15 5.90
08:00 2.75 2.51 1.15 5.90
09:00 2.75 2.51 1.15 5.90
10:00 2.75 2.51 1.15 5.90
11:00 2.75 2.44 0.88 5.90
12:00 2.75 2.43 0.89 5.90
13:00 2.75 2.43 0.89 5.90
14:00 2.75 2.44 0.88 5.90
15:00 2.75 2.44 0.88 5.90
16:00 2.75 2.45 0.86 8.75
17:00 2.75 2.45 0.86 8.75
18:00 2.75 2.44 0.87 8.75
19:00 2.75 2.45 0.86 5.90
20:00 2.75 2.44 0.87 5.90
21:00 2.75 2.45 0.88 5.90
22:00 2.75 2.45 1.15 8.75
23:00 2.75 2.45 1.04 8.75