ERCOT Generation Adequacy Study. TAC Meeting February 7, 2002. Background. RFP issued January 22, 2001 5 bidders Transmission Adequacy Consulting (Gene Preston) selected, and study begun in March Conducted under the direction of ERCOT ROS/PARWG with assistance from ERCOT System Planning
February 7, 2002
NERC data $ 750
Phase I $ 14850 $40K
Phase I rerun $ 1350
Phase II $ 8737 $20K
Phase III $ 25200 $50K
Exp in 2002 $ ~3450
Total $~54337 $110K
1. The installed reserve level in ERCOT should be calculated annually as the load ratio of demonstrated installed generating capacity (excluding 80% of wind and 80% of hydro generation) less forecasted load (excluding any load under formal agreement with ERCOT to be interrupted at any time, other than load controlled by high-set under-frequency relays, during generation or transmission capacity deficiency conditions), divided by that same net forecasted load.
2. The installed reserve level in ERCOT, as calculated in 1. above, should be maintained at no less than 15%.
3. A significant contribution by a transmission constraint to ERCOT Loss of Load Expectation (as calculated in periodically performed generation adequacy studies) should be considered in the designation of mitigating transmission projects as constraint relief projects by ERCOT.
4. Generation adequacy studies for ERCOT should be performed in any year in which the installed reserve margin, as calculated in 1. above, is less than 17% but no less frequently than every 5 years.