ERCOT begins group review of large power projects in Texas
ERCOT has begun implementing a new group-based review for data centers and other large electricity users seeking at least 75 megawatts of power in Texas.
The process, called Batch Zero, replaces the previous project-by-project approach with a combined study of eligible requests. ERCOT will examine the batch’s reliability effects, available transmission capacity and potential transmission upgrades before classifying applicants.
The change comes as ERCOT tracks more than 438,000 megawatts of large-load requests. Nearly 89% of that figure is associated with data centers, according to ERCOT. The figure represents requests being tracked—not approved demand, committed generation or projects certain to be built.
What changed in Texas
Under Batch Zero, qualifying facilities of 75 megawatts or more can be evaluated together rather than moving through separate reviews. ERCOT says the grouped approach is intended to give planners a systemwide view of large-load growth and the reliability and transmission work that may be needed.
The process supersedes ERCOT’s legacy large-load interconnection procedure. ERCOT says the older procedure is no longer in effect and will be removed from its website on September 9, 2026.
Applicants faced staged submission deadlines. Several applicant forms, attestations and eligibility materials were due to the interconnecting distribution or transmission provider by July 10, 2026. The providers then had to submit the required Batch Zero materials to ERCOT by the end of July 24. ERCOT’s implementation page lists both dates and the responsibilities attached to them.
In a July 23 market notice, ERCOT said applicants that substantially met an eligibility criterion but could not satisfy a specific element could request a good-cause exception with supporting documentation. The notice did not create a broad waiver: certain study and qualification requirements were excluded from the exception process, and an applicant could be reclassified if ERCOT or the Public Utility Commission of Texas ultimately rejected the request.
Reliability options for large users
Batch Zero includes several pathways intended to address the strain that large projects could place on the grid. One involves onsite generation that supplies some or all of a facility’s electricity and reduces its reliance on the broader system.
Another covers withdrawal-limited private-use networks, which can combine large loads with associated generation under defined conditions. A separate pathway involves provisional controllable load resources. In practical terms, a qualifying user may agree to reduce or curtail electricity use when local transmission constraints require it.
These arrangements may affect how a project is studied or classified, but they do not guarantee service, prevent outages or eliminate future grid costs.
What happens next
ERCOT expects to notify Batch Zero applicants of their classifications in August 2026. Those classifications will be an important implementation step, but they should not be read as final interconnection approvals or guarantees that every request will be constructed.
The larger transmission picture will take longer. ERCOT expects to publish a final transmission plan for the full batch in fall 2027. That plan is expected to identify the upgrades that may be needed for projects that continue through the process, but the batch’s final size and transmission requirements were not settled as of August 5, 2026.
For Texas residents and businesses, the central question is not only whether large data centers can obtain power. It is also who pays for the transmission and reliability work needed to serve them, and whether existing customers are protected from costs linked to projects that may change or never materialize.
A national issue with a Texas test case
Texas is pursuing its own approach as federal regulators press other regional grid operators to address the same growth in electricity demand. On June 18, 2026, the Federal Energy Regulatory Commission directed six regional operators and their transmission owners to either justify their existing tariffs or file changes addressing large-load issues.
FERC’s orders identify five areas for review: faster transmission-service studies, protection against cost shifting, rules for co-located generation and behind-the-meter resources, services for flexible large loads, and studies of generation serving electrically proximate large users. The orders also required informational reports on serving existing and new large loads within 30 days, while tariff justifications or revisions were due within 60 days.
That federal action provides national context, but Texas’ Batch Zero process remains governed by ERCOT and the Public Utility Commission of Texas. The next major checkpoint is the August classification process. After that, readers should watch ERCOT and PUCT filings for reliability findings, transmission plans, cost-allocation decisions and evidence showing which proposed projects have a viable path to construction.
Sources
- ERCOT Large Load Integration: Batch Zero Interconnection Study Process
- FERC large-load integration orders
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