NERC's highest (Essential Actions) alert tier — first used for load, on computational loads
Level 3observed
| Value kind | observed — Reported measurements, counts, and specifications keep the precision and scope stated by their source; an exact specification is not treated as a range. |
|---|---|
| Scope | Addressed to transmission planners, planning coordinators, transmission owners, balancing authorities, reliability coordinators and transmission operators. Recipients must acknowledge it and report on their actions; the Essential Actions themselves are not mandatory, and the alert places nothing on data centers directly. |
| As of | 2026-05 |
| Source | NERC, Level 3 Alert (Essential Action to Industry): Computational Load Modeling, Studies, Instrumentation, Commissioning, Operations, Protection, and Control, initial distribution 2026-05-04 · p.1 (Level 3 Essential Actions on computational load); p.2 Instructions and Distribution (TP, PC, TO, BA, RC, TOP; acknowledge by 2026-05-11, report by 2026-08-03; 'does not create a mandatory obligation') |
| Review | checking…review by 2027-05-01 · standard cadence |
| Recorded changes | last 2026-10-19 · 3 revisions tracked |
| Claim id | nerc-s-highest-essential-actions-alert-tier |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.