Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

04/28/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 0.99 0.95 0.95 99.00
01:00 0.87 0.87 0.27 99.00
02:00 0.87 0.87 0.27 8.55
03:00 0.87 0.87 0.27 8.55
04:00 0.87 0.87 0.27 8.55
05:00 0.87 0.87 0.27 8.55
06:00 2.47 2.47 1.00 8.55
07:00 2.15 1.00 1.00 5.90
08:00 2.15 0.95 0.27 5.90
09:00 2.15 0.95 0.27 5.90
10:00 2.15 0.63 0.27 5.90
11:00 2.15 0.63 0.27 5.90
12:00 2.15 0.63 0.27 5.90
13:00 2.15 0.63 0.27 5.90
14:00 2.15 0.63 0.27 5.90
15:00 2.43 2.43 0.27 5.90
16:00 2.43 2.43 0.27 5.90
17:00 2.43 2.43 0.27 5.90
18:00 2.43 2.43 0.27 5.90
19:00 2.43 2.43 0.27 5.90
20:00 2.45 2.45 0.27 5.90
21:00 2.45 2.45 0.27 5.90
22:00 5.50 1.00 1.00 49.00
23:00 2.15 0.83 0.27 49.00