PGRR145 / NPRR1325 · the batch study process

The Batch Zero clock.

On 2026-06-02 the ERCOT Board approved PGRR145/NPRR1325 — the revision package that ends the serial large-load study process and replaces it with batches.1 The PUCT gave final approval on 2026-06-18 (the PGRR145 and NPRR1325 issue pages read “Approved on 06/18/2026”), so the package is locked. The table below separates completed, scheduled, and projected milestones and preserves routing by eligibility path.

§ 01

Where the package stands

DateEventSource
2026-06-02ERCOT Board approves PGRR145/NPRR1325board report
2026-06-18PUCT approves the protocol package — PGRR145/NPRR1325 issue pages read “Approved on 06/18/2026” (Project 59142)docket 59142
2026-07-11Recommended effective date for Batch Zero and WLPUNNPRR1325 · PGRR145
§ 02

Every milestone, on a live clock

DateClockMilestoneStatusSource
Jun 18, 2026T+46PUCT gave final approval to ERCOT's Batch Zero protocol package (PGRR145/NPRR1325) on 2026-06-18. The issue pages read "Approved on 06/18/2026"; the rule is locked and the deadlines below are binding.completeercot.com
Jul 10, 2026T+24ILLE submission deadline, two tracks: forms, attestations, and eligibility materials due to the interconnecting TSP/DSP; the §9.2.2(3) dynamic-model submission due to ERCOT directly (BatchZero@ercot.com by 2359 CDT, per market notice M-B062326-04). Missed means excluded from Batch Zero. Also the hard close of the legacy LLIS process — no further legacy study or restudy approvals.scheduledercot.com
Jul 11, 2026T+23Recommended effective date for Batch Zero and WLPUN (PCLR effective upon system implementation). From the NPRR1325/PGRR145 issue pages.scheduledercot.com
Jul 24, 2026T+10Two distinct July 24 flows, per the live LLI page routing table and market notice M-B062326-04. (1) Interconnecting TSPs/DSPs submit completed Large Load Interconnection details to ERCOT (BatchZero@ercot.com): the Batch Zero LIF workbook, the Interconnecting TSP Dynamic Stability Study Form, the Section 9.2.1.4(3)(d) attestation, and the forwarded ILLE forms — including notarized Form W Part A (PCLR) and Form X (WLPUN) where elected, which ILLEs filed with their DSP/TSP by July 10. (2) Separately, an ILLE on the Section 9.2.1.2 eligibility path submits its Section 9.2.1.2(1) attestation to its interconnecting DSP/TSP — not to ERCOT — by this same date; that attestation belongs to one eligibility path, not to every ILLE.scheduledercot.com
Aug 1, 2026T+2QSA prerequisite gate for early-2027 energization: an ILLE seeking Initial Energization in January, February, or March 2027 must satisfy all Planning Guide §5.3.5 prerequisites by this date — six days before ERCOT issues the Batch Zero classifications (Aug 7) that confirm the §9.2.1.1(1) prerequisite. Do not wait for the classification letter. Per ERCOT market notice M-B062326-03 (2026-07-08).scheduledercot.com
Aug 7, 2026T−4ERCOT notifies TSPs/DSPs of Batch Zero classification results, including eligibility determinations and identified dynamic-model or data deficiencies. Confirmed by ERCOT market notice M-B062326-04 (2026-07-08); previously rested on the June 5 timeline deck only.scheduledercot.com
Aug 31, 2026T−28Final inclusion cut — the Batch Zero study roster is fixed. Excluded projects wait for Batch 1 (potential case build June 2027). Date is from the June 5 timeline deck, not the live ERCOT LLI page — lower confidence.projectedercot.com
Jan 29, 2027T−179Batch Zero study results and MW allocation. Allocated MW reserved against restudy; the commitment gate (interconnection agreement plus financial commitments) converts allocation to firm. Date is projected from secondary sources (study results ~Jan 2027, IA execution ~Mar 2027) — ERCOT has not published a primary-source final-report date.projectedercot.com

Dates from the PGRR145 Board Report (2026-06-02), verified against the June 1–2, 2026 Board materials and the PUCT’s 2026-06-18 approval. “Scheduled” deadlines are binding dates on ERCOT’s live LLI page; “projected” dates come from the June 5 timeline deck or secondary sources only and are lower-confidence. Day counts are end-of-day Central time.

§ 03

How the batch study works, in plain English

Until now, every large load (≥75 MW) was studied one at a time, in the order it showed up — a serial queue that produced the 410-GW pile-up. Batch Zero studies everyone who qualifies at once.1

Get in
By 2026-07-10, an interconnecting large-load entity must submit its study and dynamic-model data plus eligibility materials. That date is also the last day for legacy approvals under the serial process. By 2026-07-24, the transmission or distribution provider files the qualification package — attestations, disclosures, financial-security confirmations — and projects electing the PCLR pathway file Form W Part A (notarized and binding). ERCOT flags incomplete packages by 2026-08-07; the roster is fixed at the final inclusion cut, 2026-08-31.
Get studied
ERCOT studies the batch as a group and publishes the final report with MW allocations around 2027-01-29 (projected from secondary sources; ERCOT has not published a primary-source final-report date). Allocated MW is reserved against restudy; a commitment gate — signed interconnection agreement plus financial commitments — converts an allocation to firm, and non-committed projects are automatically removed. The minimum allocation threshold is roughly 100 MW (90% for requests of 100 MW or less).1
Curtailable power
The PCLR election (Provisional Controllable Load Resource) trades firmness for speed: firm service up to a load-commitment limit, with consumption above it curtailable via SCED dispatch, ahead of transmission buildout. It is not an eligibility bypass, and the obligations run with the facility.1
Miss it, wait
Projects excluded from Batch Zero wait for Batch 1 — a potential case build in June 2027.1
§ 04

Proposed interconnection fees

Proposed — not adopted

The money attached to a request, as proposed under 16 TAC §25.194 (PUCT Project 58481). The docket shows no adoption order — these numbers bind nobody yet, and the docket is the place to watch.2

Proposed study fee
Proposed $100,000 for 75–249 MW; proposed $300,000 at 250 MW and above.
Proposed security and fee
One proposed capital event of about $50,000/MW. The proposed $50,000/MW security is drawn down to satisfy the proposed $50,000/MW non-refundable interconnection fee under proposed §25.194(f)(7)(A). They are not additive.

A proposed 300 MW example: proposed $300,000 study fee plus about $15 million of proposed security. That security is drawn down to satisfy the proposed $15 million non-refundable interconnection fee. It is not an additional proposed $15 million. Source: proposed rule text, docket 58481.