ERCOT's 'Batch Zero' Process Approved to Handle 438,000 MW Data Center Load Backlog

The Public Utility Commission of Texas recently approved ERCOT's so-called Batch Zero framework, a new interconnection process for electricity users requesting 75 megawatts or more. ERCOT President and CEO Pablo Vegas called it "a fundamental shift in how ERCOT manages the significant growth of large load interconnection," according to Power Engineering.

What Batch Zero Actually Does

The old system evaluated each large-load project individually. As data centers and similar industrial users flooded ERCOT with requests, that approach became, in ERCOT's own words, "lengthy and repetitive." Batch Zero groups all qualifying applicants into a single study, letting ERCOT assess cumulative demand, allocate available grid capacity, and identify transmission upgrades needed across the entire cohort at once.

ERCOT is tracking 438,000 MW of large load requests. Of that, nearly 89% comes from data centers alone, according to Power Engineering. Not all 438,000 MW will be built, but the volume of requests alone required a structural fix to the queue.

Jeff Billo, ERCOT's Vice President of Interconnection and Grid Analysis, said the industry response during the framework's development was "remarkable" and that stakeholder feedback "directly shaped" the final rules.

The framework went through multiple layers of approval before landing at the PUCT: the Protocol Revision Subcommittee, the Reliability and Operations Subcommittee, the Technical Advisory Committee, and the ERCOT Board of Directors.

ERCOT's Own Candor About the Risks

An ERCOT representative speaking at the Infocast Transmission & Interconnection Summit did not oversell the process. "Batch Zero is kind of a moonshot for ERCOT, and we are now in the radio blackout period," the representative said, per Power Engineering. "We overhauled the large load interconnection process in about 4.5 months. We've written these rules, but we don't know how they're going to play out in reality."

ERCOT built this framework in roughly four and a half months, which is fast by grid-planning standards. The rules exist. The results don't yet.

The Speed Concern Deserves a Fair Hearing

Some analysts flagged a legitimate worry: batching may not actually be faster. Any serial queue process, even one organized into batches, can fall behind. Power Engineering reported this concern directly, and it isn't fringe. The Federal Energy Regulatory Commission has wrestled with similar dynamics in reforming interconnection queues at other grid operators across the country.

ERCOT is the first Independent System Operator in the U.S. to use a batch process specifically for large electricity users, according to Power Engineering. Being first means there is no comparable track record to point to.

What Comes Next

ERCOT expects to notify Batch Zero applicants of their project classification in August 2026, at which point the full scope of Batch Zero will be known. A final transmission plan covering the entire batch of projects across the state is expected to be published in Fall 2027. Applications for Batch 1 are expected to open in Summer 2027.

The principles established through the Batch Zero framework are designed to serve as the foundation for a broader, ongoing transmission planning process that ERCOT says it will develop in partnership with stakeholders later this year.

The unresolved question at the center of all this: ERCOT assembled a framework under significant time pressure, got it approved through every required governance layer, and now has to execute it against a backlog that dwarfs the generating capacity of most countries. Whether batch processing accelerates reliable grid expansion or simply restructures the waiting room is something the Batch Zero cohort's experience will answer, and that data won't exist until the first study cycle runs its full course.