Infrastructure

Grid Watch: 15,061 Customers Out on Sep 17, a Quieter Week Either Side

Published Sep 21, 2026 · 787 Daily · Original analysis

On a typical morning this week about 3,571 of LUMA’s customers were without service at 6:00 AM — the middle reading of 7 mornings (Sep 14–Sep 20), out of about 1,468,223. One morning carried the week: Sep 17, when 15,061 customers were out — about 4 times a typical morning, led by the Carolina region.

Most mornings this week, LUMA’s 6 AM readings showed a typical outage count of 3,571 customers out of about 1,468,223 — a small slice of the system, and close to what residents saw last week too. The exception was Sep 17, when 15,061 customers were without power, about four times a typical morning, with the Carolina region leading the trouble. Outside that one morning, the numbers settled back down quickly, with Sep 14 as the quietest reading of the week.

For anyone weighing whether this week was rougher than last, the middle-of-the-road numbers say no: last week’s typical morning ran at 0.19%, close enough to this week’s spread that it’s the same story twice, with one sharp morning driving most of the difference. Planned maintenance was a minor factor throughout, accounting for just 1% of the customers out on average, meaning nearly all of the outages — including Sep 17’s spike — came from unplanned faults rather than scheduled work.

Morning by morning

scattered elevated 0.0% 0.5% 1.0% 1.5% 2.0% Sep 14 Sep 15 Sep 16 Sep 17 Sep 18 Sep 19 Sep 20 last week 0.31% Sep 14 · 0.18% out · 2,572 customersSep 15 · 0.19% out · 2,840 customersSep 16 · 0.24% out · 3,571 customersSep 17 · 1.03% out · 15,061 customersSep 18 · 0.3% out · 4,378 customersSep 19 · 0.44% out · 6,483 customersSep 20 · 0.2% out · 2,920 customers 0.2% 1.03% Sep 17
Customers without service at 6:00 AM, Sep 14–Sep 20, against LUMA's severity bands. One reading a morning, not the whole day. Source: LUMA Energy outage portal.
Source: LUMA Energy outage portal, one reading per morning, Sep 14–Sep 20.
MorningCustomers outShare
Sep 142,5720.18%
Sep 152,8400.19%
Sep 163,5710.24%
Sep 1715,0611.03%
Sep 184,3780.3%
Sep 196,4830.44%
Sep 202,9200.2%

Live outages by town, updated continuously, are on the power tracker. This series reads LUMA’s public outage portal once each morning and keeps the readings as open data (/api/power-daily.json).

This is the 2nd Grid Watch (last week’s is here). Source: LUMA Energy outage portal, read at ~6:00 AM AST daily by 787 Daily.