The Definitive Guide toAI Data Centers
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ERCOT Large Load threshold: sites of 75 MW or more aggregate peak demand go through the Large Load Interconnection Study (NPRR1234 / PGRR115); the same 75 MW sets NOGRR282's Large Computational Load ride-through scope

75 MWobserved

Value kindobserved — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range.
ScopeNPRR1234 also sets modeling and classification standards for sites of 25 MW or more at a common substation. NOGRR282 (effective 2026-08-01) applies ride-through to Large Computational Loads of 75 MW or more where at least half the demand is computational.
CaveatUnder ERCOT's September 2026 update, new data-center loads of 75 MW or more stay unenergized while the Batch Zero audit and community-impact review run (Chapter 3.2).
As of2025-12
SourceERCOT, NPRR1234 Interconnection Requirements for Large Loads and Modeling Standards for Loads 25 MW or Greater (with PGRR115) · NPRR1234 issue page and board report: requirements for Large Loads of 75 MW or more aggregate peak demand; classification standards for sites of 25 MW or more at a common substation; effective 2025-12-15
Reviewchecking…review by 2027-03-31 · standard cadence
Recorded changeslast 2026-10-19 · 2 revisions tracked
Claim idercot-large-load-threshold-forcing-full

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