Large Load Batch Study Workshop #1 Feb 03, 2026, Summary
Large Load Batch Study Workshop Overview
ERCOT held its first Batch Study Process for Large Load Interconnections Workshop on February 3, 2026, bringing together transmission service providers, developers, large load customers, and other stakeholders to review the proposed framework for reforming the ERCOT large load interconnection process.
The workshop served as an early stakeholder engagement step in ERCOT’s broader effort to redesign how large load interconnection requests are evaluated and studied. With the ERCOT system experiencing unprecedented growth in data centers and other large loads, the current sequential interconnection study model is being reconsidered in favor of a structured batch study process designed to improve efficiency, transparency, and reliability planning.
What follows is a structured overview of the major discussion themes and proposed design elements introduced during the workshop.
Workshop Purpose and Context
ERCOT is developing the Large Load Batch Study Framework as part of the stakeholder engagement process tied to PUCT Project No. 59142, which is reviewing ERCOT’s large load interconnection procedures. The goal is to transition from the existing case-by-case interconnection study approach toward a system-level batch methodology capable of addressing the rapid growth of large load requests.
Key objectives of the workshop included:
- Presenting stakeholder feedback gathered through interviews and outreach
- Introducing the conceptual Batch Study framework
- Discussing proposed design parameters and eligibility criteria
- Identifying areas requiring additional stakeholder feedback before the next workshop
ERCOT noted that the proposed process aims to provide greater study consistency, improved transparency around transmission constraints, and clearer timelines for large load developers.
Key Design Concepts Presented
Transition from Sequential Studies to Batch Studies
ERCOT highlighted that the current interconnection approach, where large load requests are studied individually, has become increasingly difficult to manage due to the scale of incoming requests.
Under the proposed approach, qualifying large load projects would be studied collectively within defined batches, allowing ERCOT and transmission service providers to analyze system impacts using consistent assumptions and modeling inputs.
This shift is intended to:
- Improve planning coordination between transmission studies and load growth
- Reduce the risk of repeated restudies
- Provide greater predictability regarding upgrade requirements and timelines
Proposed “Batch Zero” Structure
A central topic of the workshop was the concept of “Batch Zero,” which would serve as the transition mechanism for projects already progressing through the current large load interconnection process.
ERCOT presented an initial concept where existing projects could be evaluated in an initial batch study to establish a consistent baseline for system impacts.
Key elements discussed included:
- Criteria for determining which existing projects qualify for Batch Zero
- The potential need to divide Batch Zero into multiple phases
- How Batch Zero would interact with required reliability studies such as the Quarterly Stability Assessment (QSA)
ERCOT noted that some projects with near-term energization timelines may still need to complete existing study requirements before the broader batch process is finalized.
Eligibility and Participation Requirements
ERCOT outlined several potential eligibility requirements for participation in batch studies.
While final criteria remain under development, stakeholders discussed potential requirements related to:
- Demonstrated project readiness
- Load size and technical characteristics
- Required data submissions
- Study deposit structures
The intent is to ensure that only viable projects with sufficient technical information and commitment levels are included in the batch study process.
Study Methodology and Modeling Considerations
Workshop materials also introduced early discussion of how ERCOT might structure the technical studies themselves.
Topics included:
- Study assumptions and modeling inputs
- How generation resources may be incorporated into study cases
- Allocation approaches if multiple large loads compete for limited transmission capacity
- Treatment of projects with co-located generation or controllable load resource configurations
ERCOT emphasized that these technical design elements remain preliminary and will continue to evolve through stakeholder feedback.
Stakeholder Feedback and Discussion
Stakeholder feedback during the workshop focused on several key areas:
Project eligibility clarity
Developers emphasized the need for clear eligibility rules and milestone requirements so projects can determine whether they qualify for batch studies.
Study timeline transparency
Participants requested clearer timelines for when batches will be initiated and how study results will be communicated.
Integration with existing processes
Stakeholders discussed how the new framework should align with existing ERCOT planning processes, including reliability assessments and transmission planning.
ERCOT noted that feedback collected from this workshop would help refine the framework ahead of the next stakeholder session.
Next Steps
ERCOT indicated that additional stakeholder engagement would occur through subsequent workshops and working group discussions.
The second Batch Study Workshop was scheduled to review stakeholder feedback from the February 3 session and further refine the proposed framework. Review ERCOT’s second Batch Study Workshop Summary Here.
ERCOT also plans to present the evolving Batch Study proposal in regulatory discussions related to Project No. 59142, where potential changes to ERCOT’s large load interconnection process will be evaluated.
As large load growth continues to accelerate across ERCOT, particularly from data centers and other energy-intensive facilities, the outcome of this stakeholder process is expected to significantly influence how future load interconnections are studied and approved.
What this means for Large Loads in ERCOT
The proposed Batch Study framework represents a fundamental shift in how large loads interact with ERCOT’s planning and interconnection processes.
For developers and investors evaluating projects in ERCOT, understanding the evolving batch structure, study timelines, and eligibility criteria will be critical for:
- Site selection and project development strategy
- Interconnection timeline expectations
- Transmission upgrade risk and cost exposure
How Zero Emission Grid Can Help
Navigating ERCOT’s evolving large load interconnection framework requires detailed technical analysis and a deep understanding of grid constraints.
We helps developers, investors, and large load customers evaluate grid feasibility and interconnection risk through advanced analytics and engineering expertise.
Our services include:
- Large load site screening and grid prospecting
- Transmission and deliverability analysis
- Interconnection strategy and due diligence
- Multi-scenario grid modeling using REST™ and Sitra™
If you are evaluating a large load or data center project in ERCOT, contact ZEG to assess interconnection feasibility and identify the most viable locations for development.
