County annual report · FIPS 42001
2021 Adams County, PA Power Outage Report
In 2021, customers in Adams County, PA went without power for an average of 7.6 hours, a total of 259K customer-hours (Pennsylvania average 4.1 hours). That ranks 18th worst of 67 Pennsylvania counties and 980th of 2,974 nationally.
Compared with PA, the US and 2020
Coverage line is EAGLE-I's share of Pennsylvania customers tracked each year.
Biggest outages in Adams 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 21, 2021 14:30 | June 23, 2021 23:15 | 2d 8h | 14,581 | 141K |
| 2 | April 30, 2021 07:00 | May 2, 2021 06:30 | 1d 23h | 3,370 | 16K |
| 3 | September 1, 2021 13:00 | September 4, 2021 02:30 | 2d 13h | 2,298 | 18K |
| 4 | September 8, 2021 16:30 | September 10, 2021 01:30 | 1d 9h | 1,817 | 3,332 |
| 5 | March 26, 2021 13:15 | March 27, 2021 11:00 | 21h 45m | 1,660 | 5,219 |
| 6 | October 18, 2021 11:45 | October 19, 2021 02:30 | 14h 45m | 1,479 | 2,613 |
| 7 | June 30, 2021 21:45 | July 2, 2021 02:00 | 1d 4h | 1,214 | 2,497 |
| 8 | December 11, 2021 18:30 | December 13, 2021 01:00 | 1d 6h | 1,139 | 2,653 |
| 9 | December 23, 2021 14:00 | December 23, 2021 17:15 | 3h 15m | 1,091 | 603 |
| 10 | July 16, 2021 12:00 | July 16, 2021 22:00 | 10h | 1,074 | 1,431 |
Outage episodes by size in 2021: 68 reached 100+ customers, 11 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 Adams 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 |
|---|---|---|---|---|---|
| Metropolitan Edison Co | 2021 | 5.1 hrs | 1.52 | 3.1 hrs | 1.26 |
| FirstEnergy Pennsylvania Electric Co | - | - | - | - | - |
| Adams Electric Cooperative Inc | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Pennsylvania's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 34,102 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. Adams County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Adams County, PA 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/pennsylvania/adams-county