County annual report · FIPS 24009
2022 Calvert County, MD Power Outage Report
In 2022, customers in Calvert County, MD went without power for an average of 9.5 hours, a total of 374K customer-hours (Maryland average 5.5 hours). That ranks 4th worst of 24 Maryland counties and 773rd of 2,976 nationally.
Compared with MD, the US and 2021
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Calvert County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 3, 2022 08:00 | January 7, 2022 01:00 | 3d 17h | 12,581 | 260K |
| 2 | December 14, 2022 00:30 | December 14, 2022 22:15 | 21h 45m | 7,706 | 8,600 |
| 3 | August 5, 2022 00:00 | August 7, 2022 23:00 | 2d 23h | 7,505 | 6,680 |
| 4 | May 27, 2022 13:15 | May 28, 2022 14:15 | 1d 1h | 2,995 | 7,675 |
| 5 | June 2, 2022 11:00 | June 2, 2022 19:30 | 8h 30m | 2,619 | 2,063 |
| 6 | October 26, 2022 11:30 | October 26, 2022 17:00 | 5h 30m | 2,282 | 3,990 |
| 7 | May 16, 2022 20:30 | May 17, 2022 13:00 | 16h 30m | 2,129 | 5,732 |
| 8 | September 30, 2022 23:00 | October 1, 2022 18:00 | 19h | 1,900 | 4,050 |
| 9 | July 21, 2022 19:45 | July 22, 2022 04:00 | 8h 15m | 1,819 | 4,348 |
| 10 | February 23, 2022 04:15 | February 23, 2022 07:15 | 3h | 1,676 | 628 |
Outage episodes by size in 2022: 61 reached 100+ customers, 13 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 Calvert County reported on EIA Form 861 for 2022, 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 | 2022 | 5.1 hrs | 1.16 | 83 min | 0.82 |
| Southern Maryland Elec Coop Inc | 2022 | 8.2 hrs | 1.96 | 1.9 hrs | 1.32 |
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 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 39,458 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. Calvert County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calvert County, MD annual power outage report, 2022, 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/2022/maryland/calvert-county