Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/18/1999

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 0.89 0.89 0.44 50.00
01:00 6.00 0.89 0.46 50.00
02:00 6.00 0.89 0.46 200.00
03:00 1.00 0.89 0.46 17.00
04:00 1.00 0.89 0.46 17.00
05:00 1.00 0.89 0.46 17.00
06:00 1.00 0.94 0.84 50.00
07:00 1.00 0.89 0.84 50.00
08:00 1.00 0.89 0.84 50.00
09:00 1.00 0.89 0.85 50.00
10:00 1.00 0.89 0.85 50.00
11:00 0.89 0.89 0.85 25.00
12:00 0.89 0.89 0.85 25.00
13:00 0.89 0.89 0.85 25.00
14:00 0.89 0.89 0.85 25.00
15:00 0.89 0.89 0.85 25.00
16:00 1.00 0.89 0.85 25.00
17:00 1.00 0.89 0.89 50.00
18:00 1.00 0.89 0.89 50.00
19:00 1.00 0.89 0.85 50.00
20:00 1.00 0.89 0.84 25.00
21:00 1.00 0.89 0.84 25.00
22:00 1.00 0.89 0.84 25.00
23:00 1.00 0.89 0.45 25.00