County annual report · FIPS 24025
2020 Harford County, MD Power Outage Report
In 2020, customers in Harford County, MD went without power for an average of 2.1 hours, a total of 238K customer-hours (Maryland average 2.2 hours). That ranks 17th worst of 24 Maryland counties and 2207th of 3,019 nationally.
Compared with MD, the US and 2019
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Harford 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 | July 22, 2020 16:30 | July 26, 2020 16:00 | 3d 23h | 6,047 | 15K |
| 2 | November 15, 2020 19:30 | November 17, 2020 16:15 | 1d 20h | 5,572 | 22K |
| 3 | August 28, 2020 20:30 | August 30, 2020 15:30 | 1d 19h | 4,958 | 19K |
| 4 | September 28, 2020 13:15 | October 1, 2020 16:00 | 3d 2h | 4,610 | 2,604 |
| 5 | August 10, 2020 11:45 | August 11, 2020 23:15 | 1d 11h | 4,290 | 14K |
| 6 | July 10, 2020 08:30 | July 13, 2020 18:00 | 3d 9h | 4,279 | 4,840 |
| 7 | August 4, 2020 08:30 | August 7, 2020 00:15 | 2d 15h | 4,050 | 33K |
| 8 | December 16, 2020 20:15 | December 18, 2020 18:45 | 1d 22h | 2,795 | 19K |
| 9 | July 27, 2020 23:00 | July 29, 2020 18:45 | 1d 19h | 2,277 | 1,191 |
| 10 | February 6, 2020 16:15 | February 8, 2020 19:15 | 2d 3h | 2,050 | 6,652 |
Outage episodes by size in 2020: 86 reached 100+ customers, 16 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 Harford 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2020 | 3.8 hrs | 1.10 | 73 min | 0.80 |
| Baltimore Gas & Electric Co | 2020 | 2.0 hrs | 0.96 | 78 min | 0.78 |
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 Maryland's customers in 2020; 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, 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/maryland/harford-county