County annual report · FIPS 24039
2018 Somerset County, MD Power Outage Report
In 2018, customers in Somerset County, MD went without power for an average of 3.5 hours, a total of 50K customer-hours (Maryland average 5.5 hours). That ranks 16th worst of 23 Maryland counties and 1375th 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 Somerset 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 | November 28, 2018 23:15 | November 29, 2018 06:30 | 7h 15m | 2,942 | 17K |
| 2 | March 2, 2018 10:15 | March 4, 2018 00:45 | 1d 14h | 2,927 | 18K |
| 3 | May 16, 2018 14:30 | May 16, 2018 15:00 | 30m | 2,298 | 1,149 |
| 4 | March 6, 2018 23:45 | March 7, 2018 06:15 | 6h 30m | 1,699 | 3,950 |
| 5 | May 27, 2018 02:00 | May 27, 2018 08:30 | 6h 30m | 445 | 2,376 |
| 6 | June 11, 2018 14:45 | June 11, 2018 20:00 | 5h 15m | 243 | 65 |
| 7 | August 31, 2018 20:15 | September 1, 2018 04:00 | 7h 45m | 217 | 492 |
| 8 | July 17, 2018 23:00 | July 18, 2018 04:00 | 5h | 202 | 808 |
| 9 | October 10, 2018 19:45 | October 10, 2018 21:30 | 1h 45m | 201 | 252 |
| 10 | December 9, 2018 13:00 | December 9, 2018 15:45 | 2h 45m | 201 | 504 |
Outage episodes by size in 2018: 18 reached 100+ customers, 4 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 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2018 | 2.8 hrs | 1.12 | 86 min | 0.91 |
| Choptank Electric Cooperative, Inc | 2018 | 3.8 hrs | 1.88 | 2.4 hrs | 1.34 |
| 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 98% of Maryland's customers in 2018; 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, 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/somerset-county