County annual report · FIPS 24025
2017 Harford County, MD Power Outage Report
In 2017, customers in Harford County, MD went without power for an average of 1.4 hours, a total of 155K customer-hours (Maryland average 1.9 hours). That ranks 21st worst of 24 Maryland counties and 1879th of 2,786 nationally.
Compared with MD, the US and 2016
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Harford County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 23, 2017 11:00 | January 26, 2017 10:30 | 2d 23h | 2,536 | 9,847 |
| 2 | October 9, 2017 12:15 | October 13, 2017 05:30 | 3d 17h | 2,462 | 3,915 |
| 3 | July 24, 2017 18:45 | July 26, 2017 15:30 | 1d 20h | 2,423 | 6,090 |
| 4 | July 18, 2017 19:15 | July 22, 2017 07:00 | 3d 11h | 2,316 | 2,036 |
| 5 | June 1, 2017 18:45 | June 2, 2017 07:45 | 13h | 2,282 | 2,132 |
| 6 | March 14, 2017 09:15 | March 16, 2017 14:00 | 2d 4h | 1,954 | 12K |
| 7 | August 2, 2017 14:00 | August 6, 2017 18:15 | 4d 4h | 1,831 | 9,565 |
| 8 | August 18, 2017 18:30 | August 21, 2017 00:00 | 2d 5h | 1,793 | 12K |
| 9 | February 13, 2017 04:30 | February 14, 2017 04:30 | 1d | 1,742 | 3,952 |
| 10 | April 6, 2017 17:00 | April 9, 2017 14:15 | 2d 21h | 1,506 | 6,517 |
Outage episodes by size in 2017: 83 reached 100+ customers, 17 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 2017, 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 | 2017 | 3.1 hrs | 1.19 | 86 min | 0.98 |
| Baltimore Gas & Electric Co | 2017 | 1.6 hrs | 0.83 | 74 min | 0.72 |
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 2017; 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, 2017, 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/2017/maryland/harford-county