Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/28/1999

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 1.09 1.09 0.51 50.00
01:00 1.09 1.09 0.53 50.00
02:00 1.09 1.09 0.53 40.00
03:00 1.09 1.09 0.51 40.00
04:00 1.09 1.09 0.51 40.00
05:00 1.10 1.10 0.51 200.00
06:00 1.10 1.10 0.51 200.00
07:00 1.10 1.10 0.53 200.00
08:00 1.10 1.10 0.51 200.00
09:00 1.11 1.11 0.51 200.00
10:00 1.11 1.11 0.51 40.00
11:00 1.11 1.11 0.51 40.00
12:00 1.11 1.11 0.49 37.69
13:00 1.11 1.11 0.51 40.00
14:00 1.11 1.11 0.51 40.00
15:00 1.11 1.11 0.49 40.00
16:00 1.10 1.10 0.51 60.00
17:00 1.10 1.10 0.55 70.00
18:00 1.10 1.10 0.55 70.00
19:00 1.10 1.10 0.55 70.00
20:00 1.10 1.10 0.55 70.00
21:00 1.10 1.10 0.51 60.00
22:00 1.11 1.11 0.51 60.00
23:00 1.11 1.11 0.51 60.00