Latest ERCOT Updates: Key Developments for Resource Entities and Stakeholders

ERCOT recently announced several important updates to enhance processes and compliance efficiency across multiple domains. These developments reflect ERCOT’s commitment to streamlining operational workflows, improving data submission practices, and ensuring transparency.  Below is a summary of the latest changes and updates.

May 1 Quarterly Stability Assessment

If your project in ERCOT is scheduled to start injecting power in Q4 2025, you’ll need to target the May 1, 2025, QSA. Pursuant to the approval of Planning Guide Revision Request 112 (PGRR112) on July 25, 2024, and its effective date of December 1, 2024, these projects must have their Full Interconnection Studies approved by ERCOT and their PSSE and PSCAD Dynamic Models submitted by March 17, 2025. Missing this QSA deadline will automatically delay your project’s synchronization date to the next quarter.

What are you waiting for? Contact EPE today to ensure your project meets all ERCOT requirements and QSA prerequisites. Our subject matter experts are ready to provide comprehensive support throughout the interconnection process.

Proposal Checklist for Future QSA Submissions

ERCOT’s Resource Integration team now requires interconnecting entities to submit a detailed checklist to confirm all QSA-related requirements are met:

• PGRR112 Checklist: Covers specific requirements related to the interconnection process.
• Final QSA Checklist: Ensures all submission prerequisites are completed before the deadline.

Both checklists must be submitted alongside the dynamic model and final QSA submissions for ERCOT’s review before the deadline.

Please note that, as part of this new initiative, ERCOT’s Resource Integration team will no longer send initial QSA status emails.

Planning Guide Revision Request 088 – Financial Security Amount

This PGRR improves transparency in generation interconnection facility costs by including the financial security amount in ERCOT’s monthly GIS report.

Resource entities and interconnecting entities are now required to provide the financial security amount as a change request in RIOO-IS within 10 business days of providing the transmission service provider with the notice to proceed and financial commitment for interconnection.

The financial security amount can be redacted if it is redacted in the public version of the SGIA filed with the Public Utility Commission of Texas.

RIOO-IS ESR Conversions

ERCOT is advancing with the migration of combination models to single-model energy storage resources.

• Current Focus: Converting combination models with project load date spanning December, January, February, and March.

The remaining conversions are targeted for completion in Q1 2025.

Looking Ahead

As ERCOT implements these changes, it is crucial for resource entities to stay informed and adaptable. Understanding and integrating these changes into your project plans can prevent delays and ensure compliance with ERCOT’s evolving guidelines.

At EPE, we are committed to supporting you through every compliance shift. Whether navigating the latest compliances or optimizing project workflows, our experts are ready to assist. Reach out to us to keep you ahead in this dynamic energy landscape.

Let’s build a sustainable energy future by remaining proactive and responsive to change.