Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/17/1999

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 5.00 1.13 0.37 50.00
01:00 5.00 1.13 0.37 50.00
02:00 5.00 1.13 0.37 50.00
03:00 5.00 1.13 0.37 20.00
04:00 5.00 1.13 0.37 20.00
05:00 5.00 1.13 0.41 20.00
06:00 6.00 1.13 0.89 50.00
07:00 1.13 1.13 0.89 50.00
08:00 1.13 1.13 0.55 50.00
09:00 1.14 1.14 0.84 50.00
10:00 1.14 1.14 0.84 50.00
11:00 1.14 1.14 0.84 25.00
12:00 1.14 1.14 0.84 25.00
13:00 1.13 1.13 0.55 50.00
14:00 1.13 1.13 0.41 25.00
15:00 7.00 1.09 0.55 25.00
16:00 6.00 1.12 1.04 50.00
17:00 7.00 1.12 1.02 55.00
18:00 7.00 1.12 1.02 55.00
19:00 7.00 1.12 0.84 55.00
20:00 1.14 1.14 0.84 50.00
21:00 1.14 1.14 0.39 50.00
22:00 1.13 1.13 0.84 50.00
23:00 1.13 1.13 0.84 55.00