ERCOT Transmission Workshop Summary
Overview of ERCOT workshop discussing transmission constraints related to new generation development, including GTCs, RASs, NPRR994, and NOGRR215. The workshop focused on transmission planning, operational management of constraints, and economic planning practices. Stakeholders provided insights and feedback on proposed changes, highlighting policy tradeoffs and opportunities for improvement in ERCOT's processes.
Download Presentation
Please find below an Image/Link to download the presentation.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.If you encounter any issues during the download, it is possible that the publisher has removed the file from their server.
You are allowed to download the files provided on this website for personal or commercial use, subject to the condition that they are used lawfully. All files are the property of their respective owners.
The content on the website is provided AS IS for your information and personal use only. It may not be sold, licensed, or shared on other websites without obtaining consent from the author.
E N D
Presentation Transcript
Transmission for Generation Workshop Summary for WMS and ROS Jeff Billo September 2-3, 2020
Workshop Overview ERCOT is supportive of new generation and hosted a workshop on August 21 to holistically discuss transmission constraints related to generation development The workshop included discussion of Generic Transmission Constraints (GTCs), Remedial Action Schemes (RASs), NPRR994, and NOGRR215 Previous Generation Construction Transmission Planning Studies Transmission Construction Congestion Current Generation Construction Transmission Planning Studies Transmission Construction 2 PUBLIC
Transmission for New Generation Generation Development Risk Time Cost/ Benefit Fundamentals Generation pocket created by siting more new generation than the existing transmission can reliably accommodate Resources and Budget Reliability Physical Constraints Generation Development Profitability 3 PUBLIC
GTC Discussion ERCOT posted a GTC whitepaper in July: http://www.ercot.com/content/wcm/lists/197392/The_Use_ of_GTCs_in_ERCOT_July_2020.pdf ERCOT posted a GTC FAQ paper on the workshop calendar page: http://www.ercot.com/content/wcm/key_documents_lists/2 09817/FAQs_for_Transmission_Issues_Related_to_Gener ation_Constraints_08192020.pdf 4 PUBLIC
Transmission Planning for Generation Discussion ERCOT gave an overview of economic transmission planning Several stakeholders made presentations and/or commented on ERCOT s current planning practices and offered ideas to improve the processes and criteria There was robust discussion on the merits of several proposed changes Many of the proposed changes involve policy tradeoffs ERCOT is neutral on these issues and will help facilitate stakeholder discussion 5 PUBLIC
Operational Management of Constraints Discussion ERCOT provided a history of Remedial Action Schemes (RAS) in ERCOT and provided context on the reliability issues related to a proliferation of new RASs Some stakeholders supported NOGRR215 while many others preferred a less restrictive approach 6 PUBLIC
ERCOTs Recommended Next Steps NPRR994: September WMS and ROS NOGRR215: Joint CMWG and OWG meeting to be scheduled ERCOT requested stakeholders provide ideas on non-discriminatory criteria that could be used to allow a limited number of RASs and avoid ERCOT s identified concerns Stakeholders requested ERCOT provide historic information on RAS mis-operations and failures to operate Other ideas: Calpine Make the generation database used for economic analysis publicly available: This is currently under discussion at PLWG (Small economic-driven transmission project topic) APA Add a reliability credit to the economic benefits for a transmission project that relieves a GTC: APA will present a proposal to PLWG EDFR Generators who are the worst offenders for stability constraints should be curtailed first: EDFR will present a proposal to CMWG EDFR/ Pattern ERCOT should make process improvements and include more economic benefits in economic transmission planning, like what was recommended in the 2013 Brattle Report*: EDFR/ Pattern will present a proposal to PLWG *http://www.ercot.com/content/meetings/rpg/keydocs/2013/0603/Brattle_ERCOT-Staff_LTS_Report.ppt EDFR ERCOT should consider non-wires solutions that can help stability issues: EDFR will present a proposal to PLWG Multiple comments ERCOT should share more information publicly on stability issues: ERCOT will provide a presentation on this topic to ROS in Q4 2020 Solar Prime ERCOT should perform a Semi-Annual Stability Assessment to determine potential stability limits by including non Planning Guide Section 6.9 generators: ERCOT will provide a presentation of discussion points on this topic to PLWG in Q4 2020 7 PUBLIC
Questions? 8 PUBLIC
