County annual report · FIPS 34021
2020 Mercer County, NJ Power Outage Report
In 2020, customers in Mercer County, NJ went without power for an average of 11.2 hours, a total of 2.2M customer-hours (New Jersey average 17.5 hours). That ranks 14th worst of 21 New Jersey counties and 713th of 3,019 nationally.
Compared with NJ, the US and 2019
Coverage line is EAGLE-I's share of New Jersey customers tracked each year.
Biggest outages in Mercer County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 4, 2020 12:00 | August 12, 2020 01:45 | 7d 13h | 51,105 | 1.7M |
| 2 | June 3, 2020 16:30 | June 7, 2020 12:00 | 3d 19h | 20,421 | 206K |
| 3 | June 16, 2020 03:30 | June 16, 2020 03:45 | 15m | 14,975 | 3,744 |
| 4 | September 21, 2020 06:15 | September 21, 2020 07:15 | 1h | 7,085 | 2,287 |
| 5 | October 20, 2020 18:00 | October 20, 2020 21:00 | 3h | 6,189 | 1,558 |
| 6 | January 14, 2020 06:15 | January 14, 2020 06:30 | 15m | 6,173 | 1,543 |
| 7 | January 14, 2020 22:30 | January 14, 2020 22:45 | 15m | 6,037 | 1,509 |
| 8 | January 3, 2020 04:30 | January 3, 2020 04:45 | 15m | 5,158 | 1,290 |
| 9 | December 25, 2020 02:00 | December 27, 2020 22:30 | 2d 20h | 4,878 | 25K |
| 10 | August 21, 2020 14:00 | August 22, 2020 00:00 | 10h | 4,633 | 1,441 |
Outage episodes by size in 2020: 158 reached 100+ customers, 71 reached 1,000+ customers, 3 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 2020, 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 | 2020 | 7.5 hrs | 1.07 | 45 min | 0.62 |
| Jersey Central Power & Lt Co | 2020 | 36.6 hrs | 2.74 | 3.1 hrs | 1.69 |
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 2020; 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, 2020, 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/2020/new-jersey/mercer-county