Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/30/1999

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 0.49 38.50
01:00 1.09 1.09 0.49 38.50
02:00 1.09 1.09 0.49 18.00
03:00 1.09 1.09 0.49 18.00
04:00 1.09 1.09 0.49 18.00
05:00 1.09 1.09 0.49 50.00
06:00 1.10 1.10 0.49 50.00
07:00 1.11 1.11 0.49 50.00
08:00 2.00 1.11 0.49 50.00
09:00 2.00 1.11 0.51 50.00
10:00 2.00 1.11 0.51 25.00
11:00 2.00 1.11 0.51 25.00
12:00 2.00 1.11 0.51 25.00
13:00 2.00 1.11 0.51 25.00
14:00 2.00 1.11 0.51 25.00
15:00 2.00 1.11 0.51 25.00
16:00 1.09 1.09 0.51 50.00
17:00 8.00 1.09 0.53 69.00
18:00 8.00 1.09 0.51 69.00
19:00 1.09 1.09 0.51 69.00
20:00 1.09 1.09 0.51 50.00
21:00 5.00 1.09 0.53 50.00
22:00 5.00 1.11 0.53 50.00
23:00 1.11 1.11 0.53 50.00