County annual report · FIPS 24019
2021 Dorchester County, MD Power Outage Report
In 2021, customers in Dorchester County, MD went without power for an average of 2.7 hours, a total of 48K customer-hours (Maryland average 2.5 hours). That ranks 9th worst of 24 Maryland counties and 1972nd of 2,974 nationally.
Compared with MD, the US and 2020
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Dorchester County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 1, 2021 19:30 | July 2, 2021 08:15 | 12h 45m | 4,905 | 13K |
| 2 | May 4, 2021 23:00 | May 5, 2021 01:45 | 2h 45m | 2,684 | 4,741 |
| 3 | July 9, 2021 02:45 | July 9, 2021 09:15 | 6h 30m | 1,838 | 1,460 |
| 4 | September 2, 2021 05:45 | September 2, 2021 07:15 | 1h 30m | 1,521 | 1,484 |
| 5 | August 23, 2021 02:15 | August 23, 2021 04:00 | 1h 45m | 1,457 | 1,742 |
| 6 | April 14, 2021 13:15 | April 14, 2021 17:00 | 3h 45m | 993 | 880 |
| 7 | June 29, 2021 14:30 | June 29, 2021 16:45 | 2h 15m | 907 | 236 |
| 8 | March 29, 2021 16:30 | March 29, 2021 16:45 | 15m | 838 | 210 |
| 9 | February 23, 2021 11:15 | February 23, 2021 18:15 | 7h | 697 | 1,892 |
| 10 | May 26, 2021 20:45 | May 27, 2021 01:00 | 4h 15m | 550 | 341 |
Outage episodes by size in 2021: 43 reached 100+ customers, 5 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 Dorchester County reported on EIA Form 861 for 2021, 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 | 2021 | 63 min | 0.82 | 63 min | 0.82 |
| Choptank Electric Cooperative, Inc | 2021 | 1.7 hrs | 1.20 | 1.7 hrs | 1.20 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 99% of Maryland's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,093 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. Dorchester County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Dorchester County, MD annual power outage report, 2021, 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/2021/maryland/dorchester-county