Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

05/10/2001

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 0.99 0.98 0.98 8.75
01:00 0.83 0.75 0.65 8.75
02:00 0.83 0.75 0.65 8.55
03:00 0.83 0.75 0.65 8.55
04:00 0.83 0.75 0.65 8.55
05:00 0.99 0.98 0.98 8.75
06:00 2.52 2.52 0.94 8.55
07:00 2.50 2.42 1.18 5.90
08:00 2.50 2.45 0.96 5.90
09:00 30.00 0.98 0.98 7.95
10:00 2.50 0.63 0.00 5.90
11:00 2.50 2.44 0.00 5.90
12:00 2.50 2.44 0.95 5.90
13:00 2.50 2.42 0.95 5.90
14:00 2.50 0.95 0.95 5.90
15:00 2.50 2.42 0.95 5.90
16:00 2.50 0.63 0.00 6.25
17:00 2.50 0.63 0.00 7.95
18:00 2.50 0.63 0.00 6.25
19:00 2.50 2.44 0.00 6.25
20:00 2.50 2.44 1.00 6.25
21:00 2.50 1.18 1.18 6.25
22:00 2.50 2.42 0.95 6.25
23:00 2.50 2.42 0.27 8.55