Northern Virginia data-center load transferred to backup on a single normally-cleared 230 kV Ashburn fault, in two waves (PJM load 99,984 → 96,205 MW, −3.8%) — the largest such event in PJM's history; the bulk system held, no customer outages; PJM is evaluating ride-through requirements in response
~3.8 GW (2026-07-22)observed
| 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. |
|---|---|
| As of | 2026-07-22 |
| Source | PJM operations data via Utility Dive (2026-08-12); Reuters same-day (>3 GW); Dominion confirmed the line fault. Roughly 2x the July 2024 event. |
| Review | checking…review by 2026-10-04 · standard cadence |
| Recorded changes | last 2026-08-19 |
| Claim id | pjm-ashburn-2026-data-center-load-drop |
Where the guide uses it
← Full numbers register — every date-stamped figure in the guide, with revision history.