Scope
Nodal Operating Guide Revision Request 282 adds frequency and voltage ride-through requirements for Large Computational Loads (Operating Guide sections 2.6.4 and 2.15), so that such loads do not trip during specified frequency and voltage disturbances. A customer interconnecting or maintaining a Large Computational Load must ensure it complies unless an exemption in the text applies. Approved by the Public Utility Commission on 9 July 2026; effective 1 August 2026.
- Geographic scope
- ERCOT region, Texas
- Jurisdiction
- Regional grid
- Authority type
- Grid operator
- Issuing authority
- Electric Reliability Council of Texas
Dates
- Adopted
- 9 July 2026
- Effective
- 1 August 2026
- Scheduled expiration
- See completion condition
- Ended
- Not recorded as ended
- Completion condition
- The revision states no expiration.
- Source document
- 9 July 2026
- Last checked
- 23 September 2026 (earlier than tracker date 5 October 2026; not an automatic status change)
Summary
ERCOT Nodal Operating Guide Revision Request 282 sets frequency and voltage ride-through requirements for Large Computational Loads, the load type defined in NPRR 1308 to include data centers and cryptocurrency mining facilities. ERCOT's stated reason is that it has seen repeated losses of such load during ordinary voltage disturbances since October 2022. The Public Utility Commission approved the revision on 9 July 2026 and it took effect on 1 August 2026.
What this does not establish
- NOGRR 282 applies to Large Computational Loads as defined in NPRR 1308; it does not itself use the words data center in the operative sections read.
- The report's redline contains superseded and replacement exemption dates side by side; this record does not state the exemption cut-off date.
- ERCOT said it intends a separate revision for ride-through risks of other Large Loads; that is not part of this record.
Unresolved questions
None recorded.
Relationships
Supersession means a later instrument replaces the earlier legal effect. Repeal links identify the repeal instrument and the measure it ends. A later implementation or related letter is not treated as a replacement unless the record says so.
- Related, not a replacement ERCOT definition of Large Computational Load (NPRR 1308) (In effect)
Sources
https://www.ercot.com/mktrules/issues/NOGRR282
- ERCOT PUCT Report for NOGRR 282 (9 July 2026) approved revision text and decision record · 9 July 2026
- ERCOT PUCT Report for NPRR 1308 (definition) definition of Large Computational Load naming data centers · 9 July 2026