County annual report · FIPS 24027
2018 Howard County, MD Power Outage Report
In 2018, customers in Howard County, MD went without power for an average of 5.0 hours, a total of 729K customer-hours (Maryland average 5.5 hours). That ranks 11th worst of 23 Maryland counties and 1048th of 2,798 nationally.
Compared with MD, the US and 2017
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Howard County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 2, 2018 06:15 | March 6, 2018 01:00 | 3d 18h | 21,220 | 465K |
| 2 | April 26, 2018 21:30 | April 26, 2018 21:45 | 15m | 3,824 | 956 |
| 3 | January 3, 2018 14:00 | January 3, 2018 20:00 | 6h | 3,325 | 4,911 |
| 4 | December 21, 2018 07:15 | December 22, 2018 14:45 | 1d 7h | 3,194 | 4,738 |
| 5 | May 27, 2018 18:30 | May 31, 2018 20:15 | 4d 1h | 2,449 | 29K |
| 6 | November 12, 2018 06:00 | November 12, 2018 21:30 | 15h 30m | 2,347 | 2,095 |
| 7 | August 28, 2018 12:00 | September 1, 2018 06:00 | 3d 18h | 2,254 | 9,127 |
| 8 | November 2, 2018 07:45 | November 5, 2018 10:15 | 3d 2h | 2,065 | 44K |
| 9 | June 12, 2018 10:00 | June 13, 2018 10:30 | 1d | 2,063 | 1,555 |
| 10 | August 9, 2018 13:30 | August 12, 2018 16:00 | 3d 2h | 1,855 | 8,442 |
Outage episodes by size in 2018: 87 reached 100+ customers, 27 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 Howard County reported on EIA Form 861 for 2018, 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 | 2018 | 5.1 hrs | 1.34 | 2.5 hrs | 1.08 |
| Baltimore Gas & Electric Co | 2018 | 7.2 hrs | 1.32 | 1.6 hrs | 0.95 |
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 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 146,094 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. Howard County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Howard County, MD annual power outage report, 2018, 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/2018/maryland/howard-county