Texas AI Docket

PUCT Project 58482, proposed new rule on Large Load Demand Management Service, comment window now shut

Power and the gridPublic Utility Commission of TexasStatewideWrite to the decider

The Public Utility Commission of Texas has proposed a new rule governing demand management service for large electric loads. The proposal for publication creates a new Section 25.521. The comment window shut on September 4th, 2026 and the filing index now stands at 64 filings. Most of what the commission received arrived on the deadline itself. It came from the transmission utilities, from the grid operator, from generators, from an environmental group, from a data center trade association and from Google. The rule as published in the Texas Register does not contain the words data center. It draws its line at a total non-coincident peak demand at a single site of 75 megawatts or more.

How to take part

The dated comment window has passed. The commission is still reachable and the Interchange filer at https://www.puc.texas.gov/industry/filings/Default.aspx still takes a filing under control number 58482, and the index carries one filed after the deadline. What comes next is the commission's to schedule. The filing index publishes a party name and a file stamp and an item type and a description, and nothing about who a filer is.

Where to do it

Where

Statewide. This decision applies across Texas rather than to a named county.

Timeline

  1. ordered

    Staff memo and proposal for publication with a September 4th comment deadline

  2. comment opens

    Proposal for publication of new Section 25.521 filed

  3. comment closes

    Comment deadline in the Texas Register acknowledgement

  4. filed

    A supplemental public comment entered the index after the deadline

  5. Today

How this decision moved

One dated line per check, oldest first. A line that says nothing changed means somebody looked and it had not.

  1. 2026-08-19

    The docket moved. The filing index reached 34 with a comment from Modern Tex Consulting on August 18th, on performance reporting and evaluation under the proposed rule. The September 4th public comment deadline is still published on the commission's calendar.

  2. 2026-08-22

    Checked and unchanged. The filing index for control number 58482 still stands at 34 filings. The Texas Register acknowledgement in that index still gives a comment deadline of September 4th, 2026, so the window a Texan can file in is still open.

  3. 2026-08-22

    Four assertions were corrected against this run's own fetch. The summary no longer calls the rule the category that covers data centers, because the published text does not contain the words. It no longer says individual Texans have filed, because the index publishes a party name and nothing about who a filer is. The filing count moves from 33 to 34.

  4. 2026-08-22

    The earlier correction today reached the summary and not the public access field. That field still said individuals had filed without counsel. It is corrected now.

  5. 2026-08-26

    Checked and unchanged. The commission's calendar still carries the September 4th public comment deadline for Project 58482, and the proposed rule text still never uses the words data center. The window is still open.

  6. 2026-08-28

    Checked and unchanged. The commission's calendar feed still carries the September 4th, 2026 public comment deadline for Project 58482 in the commissioners hearing room, and the window is still open. Anyone may still file under the control number.

  7. 2026-08-29

    The comment window is still open, closing September 4th. The commission's own calendar feed still carries that deadline as a dated entry naming the project. The proposed rule still draws its line at a demand threshold rather than at the words data center.

  8. 2026-08-30

    The rule is still out for comment. The proposal for publication of new section 25.521 stands as filed, and the deadline the Texas Register acknowledged is September 4th.

  9. 2026-09-02

    The comment window on the proposed Large Load Demand Management Service rule is still open and the commission's own filing list carries the deadline. Comments have been filed against the proposal since it was published.

  10. 2026-09-03

    The comment window on the proposed Large Load Demand Management Service rule closes tomorrow, September 4th, 2026. The commission's calendar feed still carries that deadline as a dated entry of its own, and the proposal for publication of new section 25.521 stands as filed. Anyone meaning to file has one day left. The feed's own project strings are quotable again, now that the check reads a feed whose HTML is escaped inside its XML. The project a deadline belongs to is carried by a claim rather than by a summary alone.

  11. 2026-09-04

    Today is the deadline. The filing index moved from 34 filings to 37. The three that arrived are comments on the proposal itself and the last two were filed the day before the window shuts. The Office of Public Utility Counsel, which represents residential and small commercial customers, filed on September 3rd. Texas Industrial Energy Consumers, which represents large industrial load, filed the same day. Nothing about the rule text or the deadline has changed.

  12. 2026-09-07

    The window shut. The filing index moved from 37 filings to 64, and almost all of that arrived on the deadline day itself. Oncor, AEP Texas, CenterPoint Energy Houston Electric and Texas New Mexico Power all filed. So did the grid operator, NRG, Vistra, ENGIE and the Lower Colorado River Authority. The Sierra Club filed. The Data Center Coalition filed. Google filed under its own name. A supplemental comment from a member of the public was entered on September 6th, after the deadline. The index is still taking filings even though the dated way in has passed. What the commission does with any of it is not scheduled.

  13. 2026-09-10

    The filing index still stands where the record left it and the case style has not changed. The commission's calendar feed no longer carries the September 4th deadline. That is what the feed does once a date has passed. The two entries the record quoted from it have been replaced by two the index still carries. The Texas Register acknowledgement filed under the control number still states the September 4th deadline, so the shut window stays readable from a source that keeps its own history.

  14. 2026-09-10

    Corrected. One claim carried a source title naming the commission's calendar feed. The claim quotes the commission's filing index for control number 58482, and the source title now names that.

  15. 2026-09-13

    Checked and unchanged. Still open, with no dated movement.

  16. 2026-09-16

    Still open. The proposed rule on how large loads would be asked to manage demand carries no new filing and no scheduled sitting. The door it leaves open has not moved either way.

  17. 2026-09-19

    The comment window on the proposed large load rule is still shut and the commission has not brought a final rule forward.

  18. 2026-09-23

    The proposed large load rule has not moved since comments shut, and no adoption order has issued.

  19. 2026-09-26

    The large load demand management rule is still a proposal. Comments are shut and no adoption order has been posted to the project.

  20. 2026-09-29

    No adoption order has reached the project, so large load demand management is still a proposed rule with its comment period over.

The evidence

Every fact above rests on one of these. The words are the source's own.

Large Load Demand Management Service
PUCT Interchange, Filings for 58482, Case Style Primary source, official · interchange.puc.texas.gov
PROPOSAL FOR PUBLICATION NEW §25.521
PUCT Interchange, control number 58482 item 30, filed by PUC OPDM, file stamp 7/30/2026 Primary source, official · interchange.puc.texas.gov
Texas Register Acknowledgement of Receipt - Comment Deadline 09/04/2026
PUCT Interchange, control number 58482 item 31, filed by RULES & PROJECTS, file stamp 7/30/2026 Primary source, official · interchange.puc.texas.gov
Staff Memo and Questions for Comment w/April 8 Deadline
PUCT Interchange, Filings for 58482, document title Primary source, official · interchange.puc.texas.gov
Large Load Demand Services "Say No to incentives"
PUCT Interchange, Filings for 58482, item 32, party Jennifer Carrig, file stamp 8/3/2026 Primary source, official · interchange.puc.texas.gov
Objection to rule change
PUCT Interchange, Filings for 58482, item 33, party Helen Bryant, file stamp 8/3/2026 Primary source, official · interchange.puc.texas.gov
CyrusOne, LP Comments in Response to Commission Staff's Qu
PUCT Interchange, Filings for 58482, item 25, party CyrusOne, LP, file stamp 4/8/2026 Primary source, official · interchange.puc.texas.gov
64 filing(s).
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
Sec. 39.170. LARGE LOAD DEMAND MANAGEMENT SERVICE. (a) The commission shall require the independent organization certified under Section 39.151 for the ERCOT power region
Texas Utilities Code Sec. 39.170, added by SB 6 (89R) Primary source, official · tcss.legis.texas.gov
develop a reliability service to competitively procure demand reductions from large load customers with a demand of at least 75 megawatts to be deployed in the event of an anticipated emergency condition
Texas Utilities Code Sec. 39.170(b) Primary source, official · tcss.legis.texas.gov
Texas Register Acknowledgement of Receipt - Comment Deadline 09/04/2026
PUCT Interchange, Project 58482 filings Primary source, official · interchange.puc.texas.gov
OM Item No. 29 - Staff Memo & PFP w/Sept. 4 Comment Deadline
Public Utility Commission of Texas calendar feed Primary source, official · interchange.puc.texas.gov
OFFICE OF PUBLIC UTILITY COUNSEL’S COMMENTS REGARDING THE PROPOSAL FOR PUBLICATION OF NEW 16 TAC §25.521
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
TEXAS INDUSTRIAL ENERGY CONSUMERS’ COMMENTS
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
GOOGLE COMMENTS FOR THE 58482 PROPOSAL FOR PUBLICATION
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
Data Center Coalition's Comment on Proposal for Publication (Project 58482)
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
ELECTRIC RELIABILITY COUNCIL OF TEXAS, INC.’S COMMENTS ON THE PROPOSAL FOR PUBLICATION
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
Sierra Club Comments on proposed LLDMS
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
ONCOR ELECTRIC DELIVERY COMPANY'S COMMENTS ON THE PROPOSAL FOR PUBLICATION OF NEW 16 TAC § 25.521
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov
Supplemental Public Comment Clarifying Backup Generation, BESS, and Duplicate Compensation Concerns
PUCT Interchange, Filings for 58482 Primary source, official · interchange.puc.texas.gov

Questions about this decision

Answered from the record itself. Every answer is assembled from stored fields, so an answer the record has no basis for is left out rather than guessed.

What is this decision?

The Public Utility Commission of Texas has proposed a new rule governing demand management service for large electric loads. The proposal for publication creates a new Section 25.521. The comment window shut on September 4th, 2026 and the filing index now stands at 64 filings. Most of what the commission received arrived on the deadline itself. It came from the transmission utilities, from the grid operator, from generators, from an environmental group, from a data center trade association and from Google. The rule as published in the Texas Register does not contain the words data center. It draws its line at a total non-coincident peak demand at a single site of 75 megawatts or more.

Who decides it?

Public Utility Commission of Texas decides. The record names the deciding body for every entry it carries.

Can the public take part?

The dated comment window has passed. The commission is still reachable and the Interchange filer at https://www.puc.texas.gov/industry/filings/Default.aspx still takes a filing under control number 58482, and the index carries one filed after the deadline. What comes next is the commission's to schedule. The filing index publishes a party name and a file stamp and an item type and a description, and nothing about who a filer is. No dated public window is on the record. The deciding body is named and reachable.

Where in Texas does it apply?

It is a statewide body's action and it governs the ERCOT region rather than every county.

Has it been decided?

Its status on the record is open.

What happens next?

No future date is on the record. The last dated step on it was filed on September 6th.

When did it start?

The earliest date on its record is July 24th, 2026.

What kind of decision is it?

It is filed under power and the grid.

What sources back it?

Five sources back it. Five of them are primary.

Is it on the ERCOT grid?

Yes. It sits inside the ERCOT interconnection.

When was it last checked?

Every fact on it was last verified against its source on September 29th, 2026.

Cite this

Texas AI Docket, PUCT Project 58482, proposed new rule on Large Load Demand Management Service, comment window now shut. Tracked since July 24th, 2026. Last verified September 29th, 2026. https://texasaidocket.com/item/tx-2026-0002/. Reuse permitted under CC BY 4.0 with attribution. The same entry is in the docket JSON as item tx-2026-0002.

Beat

Filed under Power and the grid, with every other decision on that beat.

Last checked 2026-09-29