County annual report · FIPS 24025
2024 Harford County, MD Power Outage Report
In 2024, customers in Harford County, MD went without power for an average of 2.5 hours, a total of 286K customer-hours (Maryland average 2.8 hours). That ranks 12th worst of 24 Maryland counties and 2251st 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 Harford 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 8, 2024 20:30 | August 12, 2024 07:30 | 3d 11h | 10,451 | 49K |
| 2 | April 3, 2024 06:45 | April 6, 2024 02:45 | 2d 20h | 3,674 | 19K |
| 3 | June 27, 2024 03:15 | July 3, 2024 13:30 | 6d 10h | 2,652 | 18K |
| 4 | August 2, 2024 20:00 | August 8, 2024 19:00 | 5d 23h | 2,591 | 46K |
| 5 | January 19, 2024 15:45 | January 20, 2024 10:30 | 18h 45m | 2,081 | 3,825 |
| 6 | January 8, 2024 07:00 | January 18, 2024 10:30 | 10d 3h | 1,965 | 25K |
| 7 | May 2, 2024 09:00 | May 3, 2024 05:30 | 20h 30m | 1,789 | 1,428 |
| 8 | March 2, 2024 07:45 | March 2, 2024 21:30 | 13h 45m | 1,480 | 1,687 |
| 9 | December 11, 2024 04:45 | December 11, 2024 09:15 | 4h 30m | 1,353 | 1,456 |
| 10 | December 5, 2024 10:30 | December 8, 2024 03:30 | 2d 17h | 1,268 | 4,958 |
Outage episodes by size in 2024: 75 reached 100+ customers, 13 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 Harford 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2024 | 1.7 hrs | 0.73 | 62 min | 0.61 |
| Baltimore Gas & Electric Co | 2024 | 2.2 hrs | 0.80 | 67 min | 0.63 |
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 ÷ 112,536 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. Harford County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Harford 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/harford-county