Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

03/31/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 2.52 2.52 0.98 99.00
01:00 2.43 2.43 0.98 99.00
02:00 0.90 0.90 0.90 8.55
03:00 0.90 0.90 0.90 8.55
04:00 0.90 0.90 0.90 8.55
05:00 2.46 2.46 0.98 8.55
06:00 2.52 2.52 0.88 8.55
07:00 2.48 0.84 0.84 7.95
08:00 2.48 0.75 0.75 7.95
09:00 2.48 0.75 0.75 5.90
10:00 2.52 2.52 0.75 5.90
11:00 2.52 2.52 0.75 5.90
12:00 2.52 2.52 0.75 5.90
13:00 30.00 2.46 0.75 5.90
14:00 2.52 2.52 0.75 5.90
15:00 30.00 2.44 0.75 5.90
16:00 2.52 2.52 0.89 8.50
17:00 2.52 2.52 0.91 8.50
18:00 3.30 3.30 3.30 8.50
19:00 3.30 3.30 3.30 8.50
20:00 30.00 3.20 3.20 7.95
21:00 30.00 2.45 0.84 7.95
22:00 30.00 0.65 0.35 7.95
23:00 2.48 0.65 0.27 99.00