Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/23/1999

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 1.10 1.10 0.46 50.00
01:00 1.10 1.10 0.45 50.00
02:00 1.09 1.09 0.46 50.00
03:00 1.09 1.09 0.46 30.00
04:00 1.09 1.09 0.45 30.00
05:00 1.10 1.10 0.46 50.00
06:00 1.10 1.10 0.85 50.00
07:00 1.10 1.10 0.50 50.00
08:00 1.10 1.10 0.50 50.00
09:00 1.10 1.10 0.50 50.00
10:00 1.10 1.10 0.50 50.00
11:00 1.10 1.10 0.50 50.00
12:00 1.10 1.10 0.50 50.00
13:00 1.10 1.10 0.50 50.00
14:00 1.10 1.10 0.48 50.00
15:00 1.10 1.10 0.46 50.00
16:00 1.09 1.09 0.50 50.00
17:00 1.09 1.09 0.50 60.00
18:00 1.09 1.09 0.50 60.00
19:00 1.09 1.09 0.50 60.00
20:00 1.09 1.09 0.50 60.00
21:00 1.09 1.09 0.50 50.00
22:00 6.00 1.09 0.50 189.69
23:00 6.00 1.09 0.48 189.69