***** EXTERNAL email. Please be cautious and evaluate before you click on links, open attachments, or provide credentials. ***** RTCTF, We have posted the latest version of the following Key Principle document for the October 9th meeting (http://www.ercot.com/calendar/2019/10/9/189276-RTCTF). Below are the details for each item to assist in your review of the issues and potential alternatives. Alternative language is due next Wednesday Oct 2. Key Principle 1.1: Ancillary Service Demand Curves and Current Market Price Adders (2)- Pricing run to reliability deployments (Round 3- confirm consensus and discuss with other RUC/reliability deployment items) (5)- Disaggregation of ORDC Curve (Round 3- no action needed, consensus on Crescent approach and ready for October TAC) Key Principle 1.2 - System-Wide Offer Cap and Power Balance Penalty Price (3)- Price caps for AS (Round 3- Proposals from Crescent and Luminant and look for task force consensus for October TAC) Key Principle 1.3 - Offering and Awarding Ancillary Services in Real-Time (1)- Ability for QSE to indicate when AS unavailable in Real-Time (Round 3 No issues to date) (2)- UFR Load Resources will be able to self-provide RRS UFR and ECRS based on DAM Awards and Trades (Round 3 No issues to date) (3)- STEC proposal for On-Line Hydro not in ONRR mode (Round 2 Review STEC alternative) (4)- Combined-cycle frequency responsive AS constraint (Round 2 No issues to date with additional detail from ERCOT on telemetry) (5)- RTC will not change limits on sub-categories of AS products (Round 3 No issues to date) (6)- Offline non-spin constraint during start-up (Round 3 Some discussion from Crescent in prior meeting, but no alternatives) (7)- Quick-start constraint during start-up (Round 3 No issues to date) (8)- Re-procurement of AS during deployments (Consensus at 9/19 meeting) (9)- Operator ability to mitigate infeasible AS (Round 3 Minor edits at RTCTF, but no alternatives) (10)- RTC will leverage AS Offer structure inherited from current structure, including NPRR863 (Round 3 No issues to date) (11)- AS Offer curve submission will be same as Energy Offer Curve (Round 3 No issues to date) (12)- Proxy curves for RTC AS Significant discussion expected, proposals encouraged Prior presentation/comments from TCPA/LCRA and also comments from Trefny (13)- Proxy curves for AS will not be created for DAM (same as today) (Round 3 No issues to date) Key Principle 5 (Round 3) (1)- ASDCs will be used in DAM (Round 3 No issues to date) (2)- ASDCs in DAM will be same as Real-Time (Round 3 No issues to date) (3)- Current DAM Insufficiency Process will be removed (Round 3 No issues to date) (4)- AS Obligation quantities posted by 06:00 in Day-Ahead become advisory-only number based on the AS Plan (Round 3 No issues to date) (5)- Minimum AS Obligation quantity will be 0.1 MW (Round 3 No issues to date) (6)- After DAM is published, updated AS Obligation quantities will be calculated and published based on the actual DAM AS requirement (Round 3 No issues to date) (7)- Virtual AS Offers- proposed by Morgan Stanley at 9/19 meeting (Round 2 Be prepared to discuss benefits of additional functionality) See you tomorrow for the ISO Lessons Learned- thanks! Matt Matt Mereness [log in to unmask]<mailto:[log in to unmask]> O: 512.248.3089 M: 512.565.8939 ######################################################################## To unsubscribe from the RTCTF list, click the following link: http://lists.ercot.com/scripts/wa-ERCOT.exe?SUBED1=RTCTF&A=1 ########################################################################