County annual report · FIPS 24027
2015 Howard County, MD Power Outage Report
In 2015, customers in Howard County, MD went without power for an average of 1.2 hours, a total of 169K customer-hours (Maryland average 2.0 hours). That ranks 21st worst of 24 Maryland counties and 1682nd of 2,484 nationally.
Compared with MD, the US
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Howard County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 20, 2015 15:45 | June 29, 2015 09:00 | 8d 17h | 7,405 | 39K |
| 2 | September 8, 2015 05:45 | September 8, 2015 08:15 | 2h 30m | 3,856 | 8,676 |
| 3 | January 20, 2015 18:30 | January 24, 2015 02:00 | 3d 7h | 3,332 | 1,016 |
| 4 | May 15, 2015 17:15 | May 17, 2015 15:15 | 1d 22h | 2,809 | 4,147 |
| 5 | June 15, 2015 14:00 | June 20, 2015 03:45 | 4d 13h | 2,734 | 3,983 |
| 6 | August 17, 2015 00:30 | August 18, 2015 05:00 | 1d 4h | 2,282 | 1,284 |
| 7 | July 19, 2015 03:00 | July 28, 2015 05:45 | 9d 2h | 2,228 | 7,030 |
| 8 | October 19, 2015 10:15 | October 20, 2015 01:45 | 15h 30m | 2,199 | 5,808 |
| 9 | August 27, 2015 14:00 | August 28, 2015 04:30 | 14h 30m | 2,170 | 1,113 |
| 10 | September 5, 2015 20:15 | September 5, 2015 21:00 | 45m | 1,894 | 1,123 |
Outage episodes by size in 2015: 84 reached 100+ customers, 22 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 Howard County reported on EIA Form 861 for 2015, 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 | 2015 | 2.2 hrs | 0.96 | 2.1 hrs | 0.95 |
| Baltimore Gas & Electric Co | 2015 | 1.7 hrs | 0.93 | 1.5 hrs | 0.89 |
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 2015; 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, 2015, 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/2015/maryland/howard-county