Key takeaways
- The Public Utility Commission of Texas approved ERCOT's Batch Zero on June 18 2026.
- Batch Zero groups qualified single-site projects of 75 MW or more; size alone does not establish eligibility.
- All qualified applicants are sorted into Base Load, Studied Load, or Excluded buckets – a classification that applies to data centers, crypto mining, large industrial facilities and other large‑load users.
- ERCOT issued conditional classifications on September 3, 2026; projects must still satisfy verification and other listed conditions or may be disqualified.
- Batch Zero forms and attestations had July 2026 submission deadlines; the framework uses a default financial-security amount of $50,000 per MW, subject to the applicable eligibility and commitment rules.
- A final transmission plan for the batch is expected in Fall 2027; most applicants target operation by 2030.
- According to ERCOT’s June 18 2026 news release, applications for Batch 1 are expected to open in the summer of 2027.
What is Batch Zero?
On June 18 2026 the Public Utility Commission of Texas gave formal sign‑off to a new group‑study interconnection framework called Batch Zero. The process groups qualified projects of 75 MW or more into a single engineering study, replacing the earlier project-by-project method. By evaluating the whole pool together, ERCOT can allocate capacity, pinpoint needed upgrades, and protect system reliability.
Eligibility and scope
ERCOT's current Batch Zero materials apply to a load facility with expected demand of 75 MW or greater, provided the project also meets an eligibility path under PGRR145. Requests below this size continue to follow the standard interconnection path and are not part of the batch. Potential applicants include data centers, AI training campuses, crypto-mining operations, large industrial and manufacturing facilities, and select petrochemical plants, but each project must still satisfy a PGRR145 eligibility path.
Classification buckets for Batch Zero applicants
ERCOT places each qualified applicant into one of three categories:
- Base Load – Projects that are already energized or sufficiently advanced that their capacity is treated as fixed for the batch. Their MW count against the transmission capacity available for the batch but are not at risk of reduction.
- Studied Load – Projects that have not yet secured a firm allocation; batch‑wide steady‑state and stability analysis may lower the final MW award.
- Excluded Load – Projects that do not qualify as Base or Studied Load in the current cycle. ERCOT's September notice says excluded projects may use the applicable dispute process.
These buckets apply to projects submitted to Batch Zero, including data centers and other qualifying large loads.
Reliability opt‑in pathways
The approved framework includes WLPUN and a planned PCLR pathway designed to reduce the amount of new transmission the grid must build. PGRR145 makes WLPUN effective with Batch Zero, while PCLR takes effect after system implementation:
- Withdrawal‑Limited Private Use Network (WLPUN) – The large user pairs on‑site generation with the site so its net draw from the ERCOT grid stays under a defined cap.
- Provisional Controllable Load Resource (PCLR) – Once implemented, this pathway is designed to let a large user accept ERCOT curtailment during localized grid stress under the framework's participation terms.
Key timeline and financial requirements
| Milestone | Date |
|---|---|
| Technical documents (engineering studies, site data) due | July 10 2026 |
| Conditional classification notices | September 3, 2026 (issued; subject to conditions and disputes) |
| Capacity allocation for Studied Load projects | Spring 2027 |
| Financial security and site‑control proof | Q2 2027 |
| Publication of the final transmission plan | Fall 2027 |
The framework uses a default financial-security amount of $50,000 per MW. At that rate, a 500 MW project would post $25 million; project-specific timing and conditions depend on the project's eligibility path and subsequent Commission action.
On September 3, 2026, ERCOT said it had notified interconnecting utilities of each submitted project's provisional classification. Conditional inclusion can depend on verification, curing dynamic-model deficiencies, or a PUCT good-cause exception.
Verification audits triggered by the Abbott directive
Governor Greg Abbott issued a directive on August 3 2026 that mandates a comprehensive verification and audit of every data‑center project moving through the large‑load interconnection process. In response, ERCOT paused Batch Zero classification and study activity in August and said it would not authorize large computational loads to energize until verification was complete. ERCOT subsequently issued conditional classifications on September 3 while keeping verification requirements in place.
ERCOT announced two parallel workstreams:
- Batch Zero Audit (large loads ≥ 75 MW) – ERCOT may request supporting documentation through transmission or distribution service providers; the Planning Guide authorizes site-readiness verification through April 9, 2027.
- Community Impact Audit (computational loads ≥ 25 MW) – Collects data on grid and water usage, onsite generation, cooling technology, and community‑impact measures. This audit is separate from Batch Zero eligibility but applies to any computational load that has not yet energized.
Good‑Cause Exception activity
On July 24 2026 ERCOT logged 41 Good‑Cause Exception (GCE) requests from interconnection applicants seeking relief from Batch Zero eligibility requirements. The filing notes that a subset of those requests relates to the qualifying interconnection study and will not be forwarded to the Commission, meaning those applicants remain ineligible for Batch Zero unless they qualify under another pathway.
Project timing signals from ERCOT
ERCOT publicly identified a small set of projects that could be energized in the first half of 2027:
- Six projects were expected to participate in the August QSA based on projected Q1 2027 initial-energization dates.
- Seventeen more were potentially eligible for the November QSA based on projected Q2 2027 dates.
Participation in a QSA does not confer Base Load status and does not authorize energization; final approval still depends on successful verification and fulfillment of all other conditions.
Looking ahead
ERCOT expects to publish a comprehensive transmission plan for the entire Batch Zero group during the fall of 2027. ERCOT says applications for Batch 1 are expected to open in the summer of 2027. While not every filing will result in a built facility, ERCOT’s own data indicate that the majority of projects anticipate being operational by 2030.
Conclusion
Batch Zero introduces a transparent, batch‑study approach for Texas’s massive large‑load queue. By categorizing projects as Base Load, Studied Load or Excluded, adding verification audits, and offering optional reliability pathways, ERCOT aims to provide clearer timelines for developers while safeguarding grid reliability. Developers must still meet financial‑security thresholds, documentation deadlines and audit outcomes before any megawatts can be officially allocated or energized.
Sources
This article was researched and fact-checked against the following sources:
- ERCOT Batch Zero Clears PUCT: Texas Large-Load Connections Now Have a Fast-Track Path - Texas Commercial Plans (texascommercialplans.com)
- ERCOT sorts Batch Zero projects as Texas screens large-load pipeline (finance.yahoo.com)
- Texas Large Load Interconnection Update: ERCOT Batch Zero Pause and Verification Process | Thought Leadership | August 2026 | Baker Botts (bakerbotts.com)
- PUCT Approves ERCOT's Batch Zero Process for Connecting Large Electricity Users While Protecting System Reliability for Texans (ercot.com)
- Texas, facing 438 GW queue, approves initial large-load interconnection process | Utility Dive (utilitydive.com)
- Batch Zero Conditional Classification issued to Transmission and/or Distribution Service Providers (ercot.com)
- Issuance of Batch Zero Verification Requests for Information (ercot.com)
- PGRR145: Batch Zero Process for Large Load Interconnections (ercot.com)
