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Data Centers & Large Load 6 min read

ERCOT's Batch Zero Verification Deadline Puts 6,608 MW of Texas Data Center Load Under Audit

On August 20, 2026, ERCOT told the Public Utility Commission of Texas it will file a Batch Zero verification report on December 10, 2026 covering 17 large loads that total 6,608 megawatts of peak demand, mostly data centers. Here is what the audit and its December 17 PUCT open meeting mean for your next Texas commercial electricity contract.

On August 20, 2026, ERCOT told the Public Utility Commission of Texas that it will file a Batch Zero Eligibility Verification Report on December 10, 2026, covering 17 large loads that together carry roughly 6,608 megawatts of peak demand over the next five years. Those 17 projects, mostly data centers, are the loads furthest along in the state's new large load interconnection process, and their status by December 10 will shape every commercial fixed-rate offer that prices Texas supply into 2027.

What Happened

The Electric Reliability Council of Texas said on August 20, 2026 that it is standing up a formal verification and audit process for Batch Zero, the first tranche of large loads (75 MW and above) admitted to the new interconnection queue built under NPRR 1325 and PGRR 145. Chad Seely, ERCOT's senior vice president of regulatory policy and general counsel, told the PUCT open meeting that the grid operator will send requests for information through each project's transmission or distribution service provider to verify site control, equipment orders, contracts, ownership documentation, and financial security, with site verification for projects closest to energization. The report is scheduled for filing on December 10, 2026, one week ahead of the PUCT's December 17, 2026 open meeting.

The verification workstream was triggered by an August 3, 2026 directive from Texas Governor Greg Abbott, which paused new data center interconnections until questions about their energy, water, and public funding use could be answered. Abbott's letter cited approximately 474 gigawatts of active interconnection queue requests, roughly 90 percent of which are data centers, a figure more than five times ERCOT's all-time peak of 91,308 MW set on July 22, 2026.

Two population groups now sit inside the process. The first is the 17 large loads totaling 6,608 MW that have cleared every ERCOT gate except the final approval to energize. The second is 157 medium data center and crypto facilities (25 MW and above) representing roughly 8,766 MW as of an April 2026 snapshot, which are subject to a parallel Community Impact Review filing due on the same December 10 date. If any of these projects fails to substantiate its attestations, ERCOT can disqualify it from Batch Zero.

See the primary sources: ercot.com for the grid operator's August 20 verification presentation, puc.texas.gov for the PUCT open meeting docket, and utilitydive.com for the December 10 audit target.

Impact on Commercial Electricity Buyers in Texas

The December 10 filing is a discrete event on the 2027 forward-price calendar, and we see three channels where it reaches a commercial account. Every retail offer priced this fall carries a load assumption, and the December 10 report is the first hard data point that will either confirm or discount it.

Forward pricing. Retail Electric Providers build fixed offers off forward wholesale power, and the forward curve into 2027 currently reflects a demand outlook that treats most of the 474 GW queue as at least partly credible. A December 10 filing that disqualifies a meaningful share of the 6,608 MW Batch Zero cohort, or that materially trims the 8,766 MW medium-load figure, would remove some of the demand premium priced into 2027 offers. The EIA's Short-Term Energy Outlook already projects Texas peak growth well below the raw queue figures, so a Batch Zero haircut would move the retail curve toward the federal view.

Term-curve shape. In the plans we track for the TxCP Commercial Rate Index (TCRI) across all five TDU territories, the spread between short-term and long-term commercial offers widens when the market prices in higher future scarcity. If ERCOT's December 10 filing narrows the 2027 demand picture, the 24 and 36 month locks are the tenors that should benefit first, and the current premium on short-term product should compress.

Contract timing. The December 10 filing plus the December 17 PUCT open meeting create a two-week window where the demand narrative is likely to move. Any commercial contract signed in the two months before that window is priced on today's assumption, not on the audited one. A term ending in Q4 2026 or Q1 2027 is now sitting on top of a discrete regulatory event, and that argues for either shopping ahead of December 10 with a short bridge, or waiting until after December 17 to see the audited number.

The TxCP Batch Zero Verification Watchlist: Four Questions Before You Lock a 2027 Rate

Before you accept any Texas commercial offer that prices supply into 2027, run it through the four questions we use to read a Batch Zero exposure. Each one turns an abstract regulatory risk into a concrete negotiating lever you can use with a REP or a broker.

1. Which demand scenario is priced into this offer?

Ask the provider whether the price assumes the full 6,608 MW Batch Zero cohort energizes on schedule, a partial energization, or a disqualification scenario. Any offer that cannot answer is pricing to yesterday's queue.

2. Does the term outlast December 17, 2026?

A 12 month term signed in October 2026 spends most of its life inside a post-audit market. A 24 to 36 month term smooths out the noise of a single filing while giving you room to reprice into a lower curve if one materializes.

3. What happens if the April 2027 study result slips further?

ERCOT already told the PUCT it will not deliver the Batch Zero interconnection study by the original April 9, 2027 date. Ask how a further slip is reflected in the offer, and whether there is a look-back or reopener clause tied to a specific ERCOT milestone.

4. Are TDU delivery charges bundled into the quoted rate?

Batch Zero decisions do not touch the delivery side of your bill, and TDU charges vary meaningfully across Oncor, CenterPoint, AEP Texas Central, AEP Texas North, and TNMP. Confirm the all-in rate, not just the energy component, so you are not compared to an unbundled quote.

What You Should Do

Turn the December 10 filing into four concrete moves you can make between now and Thanksgiving, whether your contract renews this year or in early 2027. Each one gives you a data point that a post-audit market cannot take back from you.

  1. Pull your current Electricity Facts Label, note your term end date, your average price per kWh, and your TDU territory.
  2. Ask your incumbent REP for a fresh 12, 24, and 36 month quote today, so you have a pre-audit baseline to compare against post-December 10 offers.
  3. Put December 10, 2026 and December 17, 2026 on your renewal calendar as decision markers, not just news dates.
  4. If your term ends between October 2026 and March 2027, request quotes now and again the week after December 17, and negotiate against the delta.

Questions to Ask Your REP or Broker

When you call a provider this fall, these five questions separate a rate that has been genuinely stress-tested against the Batch Zero verification process from a rate that is quietly banking on last quarter's demand curve.

  1. Which of the three demand scenarios (full 6,608 MW, partial energization, or material disqualification) is this offer priced against?
  2. How would a December 10 filing that removes 20 percent or more of the Batch Zero cohort change this quoted rate?
  3. What is your firm's exposure to the medium-load Community Impact Review covering 8,766 MW of crypto and data center facilities?
  4. Is there a re-price or reopener clause tied to the PUCT's December 17, 2026 open meeting?
  5. Are Oncor, CenterPoint, AEP, or TNMP delivery charges bundled into the quoted rate, or billed separately?

Subscribe to Weekly Market Insights, free. We publish a data-driven rate report every Monday, and the weekly report is where the December 10 audit result will land the day it drops.

For the full picture, see our Texas commercial electricity rates overview.

Frequently Asked Questions

What is ERCOT Batch Zero and why does it matter to Texas commercial electricity buyers?

Batch Zero is the first tranche of large loads (75 MW and above) admitted to the new ERCOT interconnection process built under NPRR 1325 and PGRR 145. The 17 near-term Batch Zero projects total 6,608 MW of peak demand, mostly data centers, and their December 10, 2026 verification result feeds directly into the 2027 forward-price outlook that shapes every Texas commercial fixed-rate offer.

What happens on December 10, 2026?

ERCOT plans to file its Batch Zero Eligibility Verification Report with the Public Utility Commission of Texas on December 10, 2026. The report summarizes which of the 17 near-term large loads (6,608 MW) and 157 medium loads (8,766 MW) passed the request-for-information and site-verification process. The PUCT then reviews the report at its December 17, 2026 open meeting.

How does the 6,608 MW Batch Zero figure compare to Texas total peak demand?

ERCOT set an all-time peak of 91,308 MW on July 22, 2026, so 6,608 MW represents about 7 percent of that record. The broader ERCOT queue of active interconnection requests totals about 474 gigawatts, so the near-term Batch Zero cohort is a small, well-defined slice of a much larger speculative pipeline.

Should a Texas small business lock a fixed rate before December 10, 2026?

It depends on your term end date. If your contract ends in Q4 2026 or Q1 2027, get a fresh 12, 24, and 36 month quote today, then again the week after the December 17 PUCT open meeting, and negotiate against the delta. You can browse current offers for your TDU territory in our data download (see every commercial plan we track in our data download at /download/) to size the comparison.