ERCOT Targets December 10 for Abbott’s Data Center Audit, But Drops the April 2027 Batch Zero Study Date
- Data Centers Grid Capacity Policy & Markets Regulatory State & Local Regulation
Marin Holt
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- Audit filing target: December 10, 2026
- Batch Zero projects under review: about 300 at 75 MW or larger
- Medium-load tier snapshot: 157 facilities, almost 8,800 MW
- ERCOT interconnection queue: more than 474 GW, about 90 percent data centers
- Study deadline ERCOT will miss: April 9, 2027
ERCOT will file the results of Governor Greg Abbott’s data center audit by December 10, 2026. The review covers roughly 300 projects of 75 MW or larger.
That date fixes the paperwork. It does not fix the schedule developers actually care about. At the same August 20 open meeting, ERCOT’s general counsel said the Batch Zero interconnection study will miss its April 9, 2027 deadline. The grid operator has not offered a replacement date.
Chad Seely, ERCOT’s general counsel and senior vice president of regulatory policy, said the grid operator is building a request-for-information template. It goes to every large load provisionally qualified in Batch Zero.
“We expect to start sending those out as early as the end of the month and into the first part of September,” Seely said. He told the commission that further rounds of RFIs are possible through October and November. That leaves ERCOT about five weeks to analyze the last responses before the December filing.
The audit reaches past Batch Zero. ERCOT will also run a community impact review on data centers and crypto facilities of 25 MW and above. It has already sent RFIs to utilities covering the medium-load tier between 25 and 75 MW.
An April snapshot counted 157 data center and crypto facilities in that tier, representing almost 8,800 MW. “It’s a tremendous amount of information that’s going to have to come back into ERCOT,” Seely said.
Abbott issued the directive on August 3, 2026. It ordered a “comprehensive verification and audit” of every data center moving through the interconnection process. The PUCT and ERCOT must establish five things about each project:
- whether it pays its own way
- whether it brings its own generation or leans on the grid
- whether it supplies or reuses its own water
- what it does to limit effects on neighbors
- who owns and controls it
Abbott’s letter put the ERCOT queue at more than 474 GW. That is about five times the record ERCOT peak. Roughly 90 percent of the requests come from data centers.
Why It Matters
A December filing is not an interconnection approval. Batch Zero is the study that tells a developer whether a site connects and what the network upgrades cost. ERCOT has now said in public that it will miss the April 9, 2027 date. It named no new one.
The grid operator has not even asked the PUCT to move that deadline. It does not yet know how far the audit pushes the work. Anyone holding a provisional Batch Zero slot should finance around an open-ended study window rather than a fixed one.
The delay reaches ERCOT’s own planning as well. The long-term load forecast and the reliability assessment both sit behind the audit, and utilities build resource plans on both. Jefferies analyst Julien Dumoulin-Smith wrote that the Texas legislative session could stretch the timeline further.
Enforcement Reality
Abbott’s directive is blunt about the consequence. Any project that fails to meet PUCT and ERCOT requirements gets denied a connection to the Texas grid. “Our top priority is to protect Texans’ safety and quality of life,” Abbott said.
The moratorium is narrower than it first sounds. Data centers already approved and under construction keep moving. So do projects that run on their own generation and never ask for a grid connection. Facilities in the parts of Texas outside the ERCOT footprint fall outside it too.
Even the projects at the front of the line wait. Seely counted 17 large loads, mostly data centers, that have already cleared a stability assessment. They expect to come online later this year, and together they carry about 6.6 GW of peak demand.
All of them still face the audit and the community impact RFI. Nobody approves energization until that finishes.
The PUCT has also granted ERCOT good cause exceptions to the August 7, 2026 Batch Zero classification deadline that the moratorium interrupted. The pause has started rewriting the process it interrupted.
Critical Perspective
December 10 is a filing date, not a decision date. ERCOT hands the PUCT a report a week before an open meeting. Nothing announced so far commits the commission to act on it at that meeting, or to say when Batch Zero restarts.
The audit also measures the wrong thing for the problem everyone cites. Abbott’s own letter calls the queue more than five times record peak demand. A queue that large is padded with speculative and duplicate requests. The five questions ERCOT must answer cover who owns a project, how it pays, and where its water comes from. None of them asks whether the project will ever get built.
Then there is the arithmetic. Seely expects further RFI rounds through October and November, covering roughly 300 large loads plus the 157 medium facilities. ERCOT then has weeks to ingest all of it and write a report for December 10. That is a tight window for what Seely himself called a tremendous amount of information.
The April 9, 2027 date deserves the most attention. ERCOT said in public that it will miss the deadline, and it has still not asked the PUCT to move it. A deadline nobody expects to meet and nobody moves is not a schedule. Developers pricing interconnection risk should treat it as absent rather than as 2027.
Sources
- Governor Abbott Directs Comprehensive Data Center Audit
- ERCOT targets December to complete Texas governor’s data center audit
- ERCOT says it plans to complete governor’s data center audit by December
- ERCOT to complete Texas data center audit by December
