Page Ref: P-5

Ancillary Service Prices
Day Ahead Market

12/21/1999

Time Stamp 10 Min Spinning Reserve ($/MWHr) 10 Min Non-Synchronous Reserve ($/MWHr) 30 Min Operating Reserve ($/MWHr) Regulation ($/MWHr)
00:00 5.00 1.12 0.25 50.00
01:00 5.00 1.12 0.25 50.00
02:00 5.00 1.12 0.25 194.00
03:00 1.11 1.11 0.25 34.45
04:00 1.11 1.11 0.25 34.45
05:00 1.12 1.12 0.25 34.45
06:00 5.00 1.12 0.50 194.00
07:00 1.13 1.13 0.48 194.00
08:00 1.13 1.13 0.46 200.00
09:00 1.13 1.13 0.46 200.00
10:00 1.16 1.16 0.50 200.00
11:00 1.13 1.13 0.84 50.00
12:00 1.13 1.13 0.84 50.00
13:00 1.13 1.13 0.55 50.00
14:00 1.13 1.13 0.50 50.00
15:00 1.13 1.13 0.50 50.00
16:00 1.13 1.13 0.84 45.00
17:00 10.00 1.12 0.50 200.00
18:00 1.12 1.12 0.50 200.00
19:00 1.12 1.12 0.50 200.00
20:00 1.12 1.12 0.50 200.00
21:00 1.12 1.12 0.44 200.00
22:00 1.13 1.13 0.48 50.00
23:00 1.12 1.12 0.44 50.00