PUCT adopts the SB 6 large load interconnection rule, requires $50,000 per megawatt of security and drops the interconnection fee
The Public Utility Commission of Texas adopted new 16 TAC §25.194, the large load interconnection standards Senate Bill 6 required. Before a large load can be included in an ERCOT interconnection study, the customer must sign an intermediate agreement, make certain disclosures and post financial security of $50,000 per megawatt. The rule reaches new interconnections of 75 megawatts or more. The commission removed the interconnection fee its proposal carried, and says the financial security that remains protects against stranded infrastructure costs rather than being a fee. The order was filed on September 18th, 2026 and the Texas Register receipt gives an effective date of October 8th, 2026.
How to take part
The rule is adopted and the comment stage is over. The order, all of the comments filed against the proposal and the commission's response to each are public in Project 58481 on the commission's filing system.
Where
Statewide. This decision applies across Texas rather than to a named county.
Timeline
- ordered
Order adopting new 16 TAC §25.194 filed
- Today
- effective
Effective date given on the Texas Register acknowledgement
11 days out
How this decision moved
One dated line per check, oldest first. A line that says nothing changed means somebody looked and it had not.
- 2026-09-24
Admitted on the commission's own adoption order and the Texas Register receipt. The rule is adopted and takes effect on the date that receipt gives.
- 2026-09-27
The commission's adoption order still reads as filed, and the rule stands as adopted.
The evidence
Every fact above rests on one of these. The words are the source's own.
ORDER ADOPTING NEW 16 TAC §25.194PUCT Interchange, Project 58481 filings Primary source, official · interchange.puc.texas.gov
The new rule implements Public Utility Regulatory Act (PURA) §37.0561 as enacted by Senate Bill (SB) 6 during the Texas 89th Regular Legislative Session.PUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 Primary source, official · interchange.puc.texas.gov
The new rule requires a large load customer, before the large load customer can be included in an ERCOT interconnection study, to execute an intermediate agreement, provide certain disclosures, and post financial security in the amount $50,000 per megawatt (MW).PUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 Primary source, official · interchange.puc.texas.gov
(1) a new interconnection that is equal to or exceeds 75 megawatts (MW)PUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 Primary source, official · interchange.puc.texas.gov
EDF's recommendation with respect to the interconnection fee is moot because the commission modifies the adopted rule to remove the interconnection fee.PUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 Primary source, official · interchange.puc.texas.gov
Financial security remains a requirement to protect against stranded infrastructure costs and is not a "fee."PUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 Primary source, official · interchange.puc.texas.gov
Effective Date: 10/08/2026PUCT Project 58481, Texas Register acknowledgement of receipt Primary source, official · interchange.puc.texas.gov
Filed Date - 2026-09-18 01:19:42 PMPUCT Project 58481, Order Adopting New 16 TAC §25.194, filed September 18th, 2026 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 adopted new 16 TAC §25.194, the large load interconnection standards Senate Bill 6 required. Before a large load can be included in an ERCOT interconnection study, the customer must sign an intermediate agreement, make certain disclosures and post financial security of $50,000 per megawatt. The rule reaches new interconnections of 75 megawatts or more. The commission removed the interconnection fee its proposal carried, and says the financial security that remains protects against stranded infrastructure costs rather than being a fee. The order was filed on September 18th, 2026 and the Texas Register receipt gives an effective date of October 8th, 2026.
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 rule is adopted and the comment stage is over. The order, all of the comments filed against the proposal and the commission's response to each are public in Project 58481 on the commission's filing system.
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?
It has been decided. The dates on the item page carry when.
What happens next?
The next dated step is effective, on October 8th, in eleven days.
When did it start?
The earliest date on its record is September 18th, 2026.
What kind of decision is it?
It is filed under power and the grid.
What sources back it?
Three sources back it. Three 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 27th, 2026.
Cite this
Texas AI Docket, PUCT adopts the SB 6 large load interconnection rule, requires $50,000 per megawatt of security and drops the interconnection fee. Tracked since September 18th, 2026. Last verified September 27th, 2026. https://texasaidocket.com/item/tx-2026-0187/. Reuse permitted under CC BY 4.0 with attribution. The same entry is in the docket JSON as item tx-2026-0187.
Beat
Filed under Power and the grid, with every other decision on that beat.