County annual report · FIPS 34035
2021 Somerset County, NJ Power Outage Report
In 2021, customers in Somerset County, NJ went without power for an average of 3.2 hours, a total of 544K customer-hours (New Jersey average 2.9 hours). That ranks 8th worst of 21 New Jersey counties and 1790th of 2,974 nationally.
Compared with NJ, the US and 2020
Coverage line is EAGLE-I's share of New Jersey customers tracked each year.
Biggest outages in Somerset County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 1, 2021 21:30 | September 29, 2021 01:30 | 27d 4h | 19,161 | 290K |
| 2 | June 24, 2021 18:30 | June 24, 2021 21:45 | 3h 15m | 4,334 | 2,176 |
| 3 | March 26, 2021 16:30 | March 28, 2021 11:00 | 1d 18h | 3,440 | 11K |
| 4 | January 21, 2021 08:00 | January 21, 2021 10:15 | 2h 15m | 3,283 | 829 |
| 5 | July 6, 2021 14:30 | July 10, 2021 09:45 | 3d 19h | 3,017 | 37K |
| 6 | May 26, 2021 17:45 | May 30, 2021 08:00 | 3d 14h | 2,837 | 9,294 |
| 7 | August 27, 2021 13:00 | August 28, 2021 09:15 | 20h 15m | 2,757 | 1,798 |
| 8 | July 29, 2021 11:00 | July 31, 2021 03:00 | 1d 16h | 2,640 | 7,484 |
| 9 | June 18, 2021 15:00 | June 18, 2021 16:00 | 1h | 2,547 | 2,547 |
| 10 | July 17, 2021 18:45 | July 20, 2021 06:30 | 2d 11h | 2,300 | 9,898 |
Outage episodes by size in 2021: 112 reached 100+ customers, 30 reached 1,000+ customers, 1 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Somerset County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Public Service Elec & Gas Co | 2021 | 60 min | 0.66 | 41 min | 0.60 |
| Jersey Central Power & Lt Co | 2021 | 5.8 hrs | 1.89 | 3.2 hrs | 1.59 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of New Jersey's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 172,530 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Somerset County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Somerset County, NJ annual power outage report, 2021, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2021/new-jersey/somerset-county