County annual report · FIPS 24009
2017 Calvert County, MD Power Outage Report
In 2017, customers in Calvert County, MD went without power for an average of 1.9 hours, a total of 74K customer-hours (Maryland average 1.9 hours). That ranks 12th worst of 24 Maryland counties and 1681st of 2,786 nationally.
Compared with MD, the US and 2016
Coverage line is EAGLE-I's share of Maryland customers tracked each year.
Biggest outages in Calvert County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 19, 2017 11:30 | June 20, 2017 16:30 | 1d 5h | 3,836 | 6,556 |
| 2 | March 1, 2017 19:30 | March 2, 2017 04:30 | 9h | 2,360 | 1,140 |
| 3 | March 7, 2017 14:15 | March 7, 2017 19:30 | 5h 15m | 1,711 | 1,189 |
| 4 | March 14, 2017 05:45 | March 15, 2017 23:00 | 1d 17h | 1,474 | 8,110 |
| 5 | April 18, 2017 07:15 | April 18, 2017 14:45 | 7h 30m | 1,263 | 2,897 |
| 6 | April 8, 2017 19:45 | April 9, 2017 11:00 | 15h 15m | 1,201 | 4,552 |
| 7 | August 18, 2017 23:00 | August 19, 2017 07:15 | 8h 15m | 1,160 | 2,471 |
| 8 | December 25, 2017 13:00 | December 25, 2017 20:45 | 7h 45m | 1,107 | 2,007 |
| 9 | May 7, 2017 04:15 | May 7, 2017 04:45 | 30m | 936 | 235 |
| 10 | May 7, 2017 03:00 | May 7, 2017 03:30 | 30m | 934 | 315 |
Outage episodes by size in 2017: 47 reached 100+ customers, 8 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 Calvert County reported on EIA Form 861 for 2017, 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 | 2017 | 1.6 hrs | 0.83 | 74 min | 0.72 |
| Southern Maryland Elec Coop Inc | - | - | - | - | - |
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 2017; 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, 2017, 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/2017/maryland/calvert-county