County annual report · FIPS 34021
2024 Mercer County, NJ Power Outage Report
In 2024, customers in Mercer County, NJ went without power for an average of 2.5 hours, a total of 478K customer-hours (New Jersey average 3.9 hours). That ranks 13th worst of 21 New Jersey counties and 2275th of 2,990 nationally.
Compared with NJ, the US and 2023
Coverage line is EAGLE-I's share of New Jersey customers tracked each year.
Biggest outages in Mercer County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 8, 2024 09:45 | May 17, 2024 01:30 | 8d 15h | 11,334 | 13K |
| 2 | July 9, 2024 12:45 | July 11, 2024 21:30 | 2d 8h | 11,172 | 38K |
| 3 | April 24, 2024 04:15 | April 24, 2024 04:30 | 15m | 8,978 | 2,245 |
| 4 | January 9, 2024 19:30 | January 13, 2024 09:30 | 3d 14h | 6,714 | 66K |
| 5 | February 17, 2024 19:00 | February 18, 2024 12:30 | 17h 30m | 6,137 | 3,145 |
| 6 | June 23, 2024 19:30 | July 4, 2024 13:45 | 10d 18h | 5,263 | 24K |
| 7 | April 3, 2024 11:00 | April 6, 2024 15:30 | 3d 4h | 4,181 | 24K |
| 8 | November 11, 2024 02:30 | November 11, 2024 16:15 | 13h 45m | 4,177 | 13K |
| 9 | April 22, 2024 11:30 | April 22, 2024 12:15 | 45m | 3,929 | 2,592 |
| 10 | November 20, 2024 21:45 | November 24, 2024 05:45 | 3d 8h | 3,332 | 14K |
Outage episodes by size in 2024: 115 reached 100+ customers, 38 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 Mercer County reported on EIA Form 861 for 2024, 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 | 2024 | 45 min | 0.57 | 39 min | 0.55 |
| Jersey Central Power & Lt Co | 2024 | 8.0 hrs | 2.46 | 4.2 hrs | 1.95 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of New Jersey's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 193,667 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. Mercer County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Mercer County, NJ annual power outage report, 2024, 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/2024/new-jersey/mercer-county