County annual report · FIPS 34021
2023 Mercer County, NJ Power Outage Report
In 2023, customers in Mercer County, NJ went without power for an average of 1.2 hours, a total of 241K customer-hours (New Jersey average 2.4 hours). That ranks 15th worst of 21 New Jersey counties and 2580th of 2,977 nationally.
Compared with NJ, the US and 2022
Coverage line is EAGLE-I's share of New Jersey customers tracked each year.
Biggest outages in Mercer County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 17, 2023 12:00 | October 18, 2023 02:00 | 14h | 9,349 | 2,802 |
| 2 | September 22, 2023 12:30 | September 26, 2023 06:15 | 3d 17h | 5,424 | 8,353 |
| 3 | June 23, 2023 23:15 | June 24, 2023 01:15 | 2h | 4,506 | 2,257 |
| 4 | November 17, 2023 15:00 | November 18, 2023 04:30 | 13h 30m | 4,280 | 2,214 |
| 5 | April 1, 2023 22:45 | April 3, 2023 22:15 | 1d 23h | 4,257 | 18K |
| 6 | June 22, 2023 06:15 | June 22, 2023 10:15 | 4h | 3,971 | 1,452 |
| 7 | July 20, 2023 09:30 | July 20, 2023 21:30 | 12h | 3,892 | 2,478 |
| 8 | December 18, 2023 06:15 | December 20, 2023 08:45 | 2d 2h | 3,712 | 22K |
| 9 | November 2, 2023 11:45 | November 2, 2023 21:00 | 9h 15m | 3,541 | 4,456 |
| 10 | April 22, 2023 19:45 | April 23, 2023 04:15 | 8h 30m | 2,713 | 844 |
Outage episodes by size in 2023: 145 reached 100+ customers, 38 reached 1,000+ customers, 0 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 2023, 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 | 2023 | 38 min | 0.57 | 36 min | 0.55 |
| Jersey Central Power & Lt Co | 2023 | 4.4 hrs | 1.67 | 3.7 hrs | 1.56 |
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 2023; 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, 2023, 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/2023/new-jersey/mercer-county