Load Resource and other Included Demand Response Not Included Not included Not Included (shown as separate line item) Programs Net to the grid Gross Gross Gross Self-Serve Load (self-serve load minus (no reduction for self-serve (no reduction for self-serve (no reduction for self-serve serve generation) generation) generation) generation) Within a region of study the higher of: SSWG load in each weather zone or ERCOT 90th No adjustments from TSP percentile load forecast by Load Adjustments None None provided loads are made weather zone Adjustments may be made outside of study region Generation Inputs Yes, a combination of As needed, see Appendix B of Extraordinary Dispatch extraordinary dispatch and SSWG manual. Has been used Methods – a method of Not applicable load scaling outside of the Not applicable for years 4, 5, and 6 in recent region being studied may adding capacity to a model years occur Seasonal Net Maximum Seasonal Net Maximum Seasonal Net Maximum Sustainable MW Rating from Sustainable MW Rating from Seasonal Net Maximum Thermal Generation Sustainable MW Rating from RARF and Reactive curve gross RARF and Reactive curve gross Sustainable MW Rating from RARF MVAR less auxiliary Load MVAR less auxiliary Load RARF MVAR Ratings from RARF MVAR Ratings from RARF Capacity contribution based 100% of capacity modeled. Units dispatched based on 100% of capacity modeled. on average of recent Units dispatched according to representative hourly patterns Wind Generation Units dispatched at varying season output (top 20 load CDR Report unless needed in appropriate for weather levels, depending on the case hours) extraordinary dispatch assumptions
Load Resource and other Demand Response Programs Included (shown as separate line item) Not Included Not included Not Included Self-Serve Load Net to the grid (self-serve load minus generation) Gross (no reduction for self-serve generation) Gross (no reduction for self-serve generation) Gross (no reduction for self-serve generation) Load Adjustments None No adjustments from TSP provided loads are made Within a region of study the higher of: SSWG load in each weather zone or ERCOT 90th percentile load forecast by weather zone Adjustments may be made outside of study region None Generation Inputs Extraordinary Dispatch Methods – a method of adding capacity to a model Not applicable As needed, see Appendix B of SSWG manual. Has been used for years 4, 5, and 6 in recent years Yes, a combination of extraordinary dispatch and load scaling outside of the region being studied may occur Not applicable Thermal Generation Seasonal Net Maximum Sustainable MW Rating from RARF Seasonal Net Maximum Sustainable MW Rating from RARF and Reactive curve gross MVAR less auxiliary Load MVAR Ratings from RARF Seasonal Net Maximum Sustainable MW Rating from RARF and Reactive curve gross MVAR less auxiliary Load MVAR Ratings from RARF Seasonal Net Maximum Sustainable MW Rating from RARF Wind Generation Capacity contribution based on average of recent output (top 20 load hours) 100% of capacity modeled. Units dispatched according to CDR Report unless needed in extraordinary dispatch 100% of capacity modeled. Units dispatched at varying levels, depending on the case Units dispatched based on representative hourly patterns appropriate for weather assumptions season serve
PLWG_CDR_Planning_Model_Whitepaper.ROS_Endorsed_July_9__2015.docx