County annual report · FIPS 24003
2020 Anne Arundel County, MD Power Outage Report
In 2020, customers in Anne Arundel County, MD went without power for an average of 2.4 hours, a total of 605K customer-hours (Maryland average 2.2 hours). That ranks 15th worst of 24 Maryland counties and 2098th of 3,019 nationally.
Compared with MD, the US and 2019
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Anne Arundel County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 1, 2020 15:45 | August 8, 2020 21:30 | 7d 5h | 19,913 | 219K |
| 2 | August 31, 2020 12:15 | September 6, 2020 05:15 | 5d 17h | 7,623 | 103K |
| 3 | July 3, 2020 20:45 | July 14, 2020 10:15 | 10d 13h | 6,163 | 49K |
| 4 | May 22, 2020 18:15 | May 25, 2020 19:00 | 3d | 3,227 | 4,340 |
| 5 | May 8, 2020 16:30 | May 11, 2020 00:15 | 2d 7h | 3,196 | 7,543 |
| 6 | July 17, 2020 11:15 | July 25, 2020 04:30 | 7d 17h | 3,151 | 15K |
| 7 | October 29, 2020 12:45 | November 4, 2020 17:00 | 6d 4h | 2,836 | 19K |
| 8 | February 2, 2020 12:45 | February 4, 2020 06:30 | 1d 17h | 2,587 | 6,154 |
| 9 | March 24, 2020 12:30 | March 26, 2020 00:45 | 1d 12h | 2,310 | 2,473 |
| 10 | December 16, 2020 10:45 | December 18, 2020 09:30 | 1d 22h | 2,210 | 3,053 |
Outage episodes by size in 2020: 98 reached 100+ customers, 25 reached 1,000+ customers, 1 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 Anne Arundel County reported on EIA Form 861 for 2020, 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 |
|---|---|---|---|---|---|
| Baltimore Gas & Electric Co | 2020 | 2.0 hrs | 0.96 | 78 min | 0.78 |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 253,751 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. Anne Arundel County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Anne Arundel County, MD annual power outage report, 2020, 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/2020/maryland/anne-arundel-county