County annual report · FIPS 24039
2015 Somerset County, MD Power Outage Report
In 2015, customers in Somerset County, MD went without power for an average of 1.5 hours, a total of 22K customer-hours (Maryland average 2.0 hours). That ranks 19th worst of 24 Maryland counties and 1457th 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 Somerset 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 4, 2015 10:00 | June 4, 2015 15:00 | 5h | 2,362 | 5,654 |
| 2 | December 17, 2015 18:15 | December 17, 2015 20:30 | 2h 15m | 1,244 | 651 |
| 3 | September 12, 2015 17:00 | September 13, 2015 00:30 | 7h 30m | 1,035 | 1,468 |
| 4 | June 2, 2015 03:30 | June 2, 2015 08:45 | 5h 15m | 934 | 2,747 |
| 5 | August 20, 2015 08:15 | August 20, 2015 20:45 | 12h 30m | 812 | 2,326 |
| 6 | June 23, 2015 23:30 | June 24, 2015 07:15 | 7h 45m | 724 | 1,446 |
| 7 | September 25, 2015 22:15 | September 25, 2015 23:00 | 45m | 405 | 304 |
| 8 | December 22, 2015 18:30 | December 22, 2015 18:45 | 15m | 279 | 70 |
| 9 | December 4, 2015 21:00 | December 5, 2015 01:30 | 4h 30m | 241 | 728 |
| 10 | June 18, 2015 23:30 | June 19, 2015 06:45 | 7h 15m | 205 | 494 |
Outage episodes by size in 2015: 20 reached 100+ customers, 3 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 Somerset 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2015 | 3.5 hrs | 1.42 | 1.9 hrs | 1.22 |
| Choptank Electric Cooperative, Inc | 2015 | 2.7 hrs | 1.77 | 1.7 hrs | 1.26 |
| A & N Electric Coop | - | - | - | - | - |
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 ÷ 14,318 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. Somerset County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Somerset 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/somerset-county