County annual report · FIPS 24003
2023 Anne Arundel County, MD Power Outage Report
In 2023, customers in Anne Arundel County, MD went without power for an average of 3.3 hours, a total of 845K customer-hours (Maryland average 3.6 hours). That ranks 9th worst of 24 Maryland counties and 1858th of 2,977 nationally.
Compared with MD, the US and 2022
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Anne Arundel County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 31, 2023 12:00 | June 11, 2023 12:15 | 11d | 46,003 | 218K |
| 2 | July 28, 2023 10:30 | August 14, 2023 10:00 | 16d 23h | 12,082 | 219K |
| 3 | April 1, 2023 06:15 | April 6, 2023 14:45 | 5d 8h | 6,662 | 91K |
| 4 | July 14, 2023 18:30 | July 22, 2023 04:45 | 7d 10h | 5,263 | 9,446 |
| 5 | June 11, 2023 13:45 | June 14, 2023 00:30 | 2d 10h | 4,072 | 8,000 |
| 6 | November 27, 2023 13:00 | November 28, 2023 10:15 | 21h 15m | 3,983 | 3,547 |
| 7 | June 23, 2023 06:30 | June 29, 2023 21:15 | 6d 14h | 3,835 | 16K |
| 8 | October 1, 2023 17:00 | October 3, 2023 20:15 | 2d 3h | 3,656 | 4,499 |
| 9 | September 18, 2023 02:15 | September 28, 2023 09:45 | 10d 7h | 3,610 | 56K |
| 10 | December 12, 2023 12:15 | December 12, 2023 19:00 | 6h 45m | 3,434 | 4,975 |
Outage episodes by size in 2023: 96 reached 100+ customers, 23 reached 1,000+ customers, 2 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 2023, 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 | 2023 | 3.2 hrs | 0.96 | 60 min | 0.69 |
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 2023; 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, 2023, 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/2023/maryland/anne-arundel-county