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Meeting Summary - 07/08/24 LFLTF Meeting

Grid Monitor Staff Writer
07/08/2024

1 - Antitrust Admonition - Bill Blevins <a href="https://dash3.gridmonitor.com/sharing/?token=37b015aa-0b03-456e-ae13-5a73a78b5eef" target="_blank" rel="noopener">2</a> - Update on Large Load Queue - Manuel Navarro <ul> <li style="font-weight: 400;" aria-level="1">Increased total queue capacity by 4,196 MW from June 2023 to July 2024.</li> <li style="font-weight: 400;" aria-level="1">Expansion of queue to include projects with projected in-service dates of 2028.</li> <li style="font-weight: 400;" aria-level="1">Reassignment of default in-service dates to December 31, 2028 for projects without one.</li> <li style="font-weight: 400;" aria-level="1">1,735 MW load approved to energize since July 2023, a slight decrease due to updates and cancellations.</li> <li style="font-weight: 400;" aria-level="1">Breakdown by load zones: 2837 MW in load zone west, 2642 MW in north, south, and Houston load zones.</li> <li style="font-weight: 400;" aria-level="1">Standalone projects: 4,404 MW, Co-located projects: 1,075 MW.</li> <li style="font-weight: 400;" aria-level="1">Peak consumption details: Non-simultaneous peak at 3,065 MW, simultaneous peak at 2,610 MW.</li> <li style="font-weight: 400;" aria-level="1">Clarification needed on large loads not shown due to ERCOT's intermarket notice.</li> <li style="font-weight: 400;" aria-level="1">Discussion on better projections of connected load for policymakers.</li> <li style="font-weight: 400;" aria-level="1">Need for additional reporting requirements for granular breakdown of readiness and equipment delivery dates.</li> <li style="font-weight: 400;" aria-level="1"><a href="https://ercot-control-docs.s3.us-west-2.amazonaws.com/05/LLI%2520Queue%2520Status%2520Update%2520-%25202024-7-8.pdf" target="_blank" rel="noopener">Click here for the full powerpoint</a></li> </ul> <a href="https://dash3.gridmonitor.com/sharing/?token=ddcaf83c-fe6f-4a0b-baef-443a8317acc1" target="_blank" rel="noopener">3</a> - Voluntary Registration of Loads - Chris Koenig <ul> <li style="font-weight: 400;" aria-level="1">Golden Spread's concern is about large flexible loads increasing their denominator during coincident peak and issues in meeting load obligations during manual load shed events.</li> <li style="font-weight: 400;" aria-level="1">Golden Spread proposed excluding large flexible loads from TL load shed obligations if they come off prior to EEA or EEA Level 1.</li> <li style="font-weight: 400;" aria-level="1">Coordination with ERCOT occurred in drafting the language for NPRR1238 and NOGRR265.</li> <li style="font-weight: 400;" aria-level="1">Urgent status for the proposed changes was requested due to delays in several projects.</li> <li style="font-weight: 400;" aria-level="1">Stakeholder concerns were addressed, including specificity of use and potential broader application.</li> <li style="font-weight: 400;" aria-level="1">Several questions regarding the language of NOGRR268 were asked and addressed about minimum size requirements, the impact on resource types, and the system change implications.</li> <li style="font-weight: 400;" aria-level="1">Oncor raised questions and suggestions around notification and responsibility for changes in system topology or telemetry.</li> <li style="font-weight: 400;" aria-level="1">Bill Blevins emphasized the need to ensure that registration and deployment of curtailable loads are managed effectively.</li> <li style="font-weight: 400;" aria-level="1">ERCOT continued to review the proposal, providing feedback and showed reservations about the urgency status.</li> <li style="font-weight: 400;" aria-level="1">Further discussions ensued on the flexibility in the deployment process and the necessity to align with regulatory requirements.</li> </ul> <a href="https://dash3.gridmonitor.com/sharing/?token=d7b8adfe-b7b7-4748-bd70-81553cd8f286" target="_blank" rel="noopener">4</a> - Maximum Size Limit on Load Interconnections - Bill Blevins <ul> <li style="font-weight: 400;" aria-level="1">Introduction of the proposal to set size limits on load interconnections, focusing on minimum and maximum size for radial connections.</li> <li style="font-weight: 400;" aria-level="1">Explanation of scenarios for load interconnection configurations based on load size:</li> <ul> <li style="font-weight: 400;" aria-level="2">Less than 350 MW</li> <li style="font-weight: 400;" aria-level="2">Greater than or equal to 350 MW and less than 700 MW</li> <li style="font-weight: 400;" aria-level="2">Greater than or equal to 700 MW</li> <li style="font-weight: 400;" aria-level="2">Greater than or equal to 1 GW</li> </ul> <li style="font-weight: 400;" aria-level="1">Mention of recent trends and requests for very large load connections (up to 4 GW) and lack of existing criteria within ERCOT or internationally.</li> <li style="font-weight: 400;" aria-level="1">Discussion on studies conducted (e.g., Southern Cross) evaluating frequency and voltage impacts of large loads.</li> <li style="font-weight: 400;" aria-level="1">Comments from attendees highlighting concerns and suggestions for the proposal:</li> <ul> <li style="font-weight: 400;" aria-level="2">Clayton advocated for a more rigorous study to set thresholds based on frequency overshoot rather than arbitrary load sizes.</li> <li style="font-weight: 400;" aria-level="2">Jason highlighted the importance of considering co-located generation and load facilities and their impact on the transmission system.</li> <li style="font-weight: 400;" aria-level="2">Harsh stressed the need for practical and reliable solutions and cited examples of flaws in current proposal assumptions.</li> <li style="font-weight: 400;" aria-level="2">Multiple attendees, including Floyd and Mike Tabrizi, raised the issue of ensuring criteria for substation selection and coordination between multiple TSPs.</li> </ul> <li style="font-weight: 400;" aria-level="1">Agreement on the need for further studies and potentially new criteria to handle voltage ride-through and system stability for large load interconnections.</li> <li style="font-weight: 400;" aria-level="1">Consideration of comments and suggestions to refine the initial proposal and establish clear, reliable interconnection standards.</li> </ul> 5 - Other Business - Bob Wittmeyer