County annual report · FIPS 34023
2021 Middlesex County, NJ Power Outage Report
In 2021, customers in Middlesex County, NJ went without power for an average of 1.6 hours, a total of 662K customer-hours (New Jersey average 2.9 hours). That ranks 15th worst of 21 New Jersey counties and 2395th 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 Middlesex 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 | June 14, 2021 10:45 | June 15, 2021 02:45 | 16h | 16,925 | 26K |
| 2 | September 1, 2021 11:30 | September 28, 2021 10:00 | 26d 22h | 13,614 | 173K |
| 3 | January 21, 2021 10:00 | January 21, 2021 10:15 | 15m | 8,658 | 2,165 |
| 4 | April 27, 2021 04:15 | April 27, 2021 04:30 | 15m | 8,275 | 2,069 |
| 5 | April 30, 2021 12:15 | May 2, 2021 22:30 | 2d 10h | 7,698 | 8,085 |
| 6 | July 6, 2021 14:00 | July 10, 2021 22:00 | 4d 8h | 7,409 | 19K |
| 7 | October 5, 2021 06:30 | October 5, 2021 07:15 | 45m | 7,015 | 5,261 |
| 8 | October 18, 2021 09:15 | October 18, 2021 09:30 | 15m | 6,909 | 1,727 |
| 9 | October 29, 2021 12:45 | November 1, 2021 09:00 | 2d 20h | 6,464 | 51K |
| 10 | August 21, 2021 17:30 | August 27, 2021 01:45 | 5d 8h | 6,072 | 68K |
Outage episodes by size in 2021: 186 reached 100+ customers, 79 reached 1,000+ customers, 2 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 Middlesex 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 |
| Borough of Milltown - (NJ) | - | - | - | - | - |
| Borough of South River - (NJ) | - | - | - | - | - |
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 ÷ 406,721 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. Middlesex County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Middlesex 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/middlesex-county