Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

05/01/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 5.50 2.52 1.97 49.00
01:00 2.45 2.45 1.97 49.00
02:00 1.91 1.91 1.81 8.55
03:00 1.91 1.91 1.81 8.55
04:00 1.91 1.91 1.81 8.55
05:00 5.50 2.52 1.97 9.00
06:00 2.52 2.52 1.95 8.55
07:00 5.50 1.97 1.97 5.90
08:00 5.50 2.50 1.99 5.90
09:00 5.50 2.50 1.99 5.90
10:00 2.51 2.51 1.79 5.90
11:00 5.50 2.45 0.02 5.90
12:00 5.50 2.45 0.02 5.90
13:00 5.50 3.45 3.45 5.90
14:00 5.50 2.52 0.02 5.90
15:00 5.50 2.52 0.02 5.90
16:00 5.50 2.52 0.02 6.92
17:00 2.75 2.52 0.02 6.92
18:00 5.50 2.52 0.02 6.92
19:00 2.52 2.52 0.02 6.92
20:00 2.75 2.52 0.02 6.92
21:00 5.50 2.45 0.02 6.92
22:00 2.75 2.44 0.02 6.92
23:00 0.99 0.95 0.00 8.55