County annual report · FIPS 24021
2024 Frederick County, MD Power Outage Report
In 2024, customers in Frederick County, MD went without power for an average of 1.9 hours, a total of 253K customer-hours (Maryland average 2.8 hours). That ranks 17th worst of 24 Maryland counties and 2428th of 2,990 nationally.
Compared with MD, the US and 2023
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Frederick 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 | August 7, 2024 23:00 | August 11, 2024 04:45 | 3d 5h | 5,705 | 32K |
| 2 | October 9, 2024 22:45 | October 10, 2024 06:00 | 7h 15m | 4,682 | 6,007 |
| 3 | February 1, 2024 14:00 | February 1, 2024 18:30 | 4h 30m | 3,944 | 3,020 |
| 4 | August 13, 2024 12:15 | August 14, 2024 03:00 | 14h 45m | 3,892 | 2,233 |
| 5 | April 12, 2024 02:00 | April 13, 2024 00:45 | 22h 45m | 2,434 | 5,432 |
| 6 | May 23, 2024 23:00 | May 24, 2024 00:15 | 1h 15m | 2,265 | 2,104 |
| 7 | July 31, 2024 06:00 | August 1, 2024 00:30 | 18h 30m | 2,173 | 2,797 |
| 8 | July 30, 2024 23:30 | July 31, 2024 04:45 | 5h 15m | 2,091 | 2,776 |
| 9 | January 25, 2024 11:15 | January 25, 2024 14:30 | 3h 15m | 1,952 | 2,994 |
| 10 | June 3, 2024 10:45 | June 3, 2024 19:15 | 8h 30m | 1,881 | 1,479 |
Outage episodes by size in 2024: 141 reached 100+ customers, 23 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 Frederick 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 |
|---|---|---|---|---|---|
| The Potomac Edison Company | 2024 | 3.7 hrs | 1.32 | 3.4 hrs | 1.28 |
| Thurmont Municipal Light Co | - | - | - | - | - |
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 Maryland's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 132,173 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. Frederick County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Frederick County, MD 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/maryland/frederick-county