County annual report · FIPS 24037
2016 St. Mary's County, MD Power Outage Report
In 2016, customers in St. Mary's County, MD went without power for an average of 1.7 hours, a total of 96K customer-hours (Maryland average 2.2 hours). That ranks 21st worst of 24 Maryland counties and 1442nd of 2,391 nationally.
Compared with MD, the US and 2015
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in St. Mary's County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 9, 2016 06:00 | October 10, 2016 00:45 | 18h 45m | 3,650 | 6,065 |
| 2 | April 3, 2016 03:30 | April 3, 2016 23:30 | 20h | 2,979 | 13K |
| 3 | November 19, 2016 21:15 | November 20, 2016 04:15 | 7h | 2,336 | 2,661 |
| 4 | July 25, 2016 20:30 | July 26, 2016 18:30 | 22h | 1,883 | 3,760 |
| 5 | April 4, 2016 08:45 | April 4, 2016 09:00 | 15m | 1,581 | 395 |
| 6 | February 25, 2016 10:45 | February 25, 2016 14:45 | 4h | 1,368 | 1,802 |
| 7 | January 23, 2016 12:15 | January 24, 2016 16:00 | 1d 3h | 1,307 | 2,464 |
| 8 | April 19, 2016 21:15 | April 19, 2016 23:15 | 2h | 1,249 | 966 |
| 9 | March 20, 2016 00:15 | March 20, 2016 08:15 | 8h | 1,245 | 950 |
| 10 | May 30, 2016 11:30 | May 31, 2016 04:30 | 17h | 1,244 | 3,499 |
Outage episodes by size in 2016: 68 reached 100+ customers, 11 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 St. Mary's County reported on EIA Form 861 for 2016, 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 |
|---|---|---|---|---|---|
| Southern Maryland Elec Coop Inc | - | - | - | - | - |
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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 55,898 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. St. Mary's County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Mary's County, MD annual power outage report, 2016, 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/). https://massoutage.com/reports/2016/maryland/st-marys-county