County annual report · FIPS 24013
2020 Carroll County, MD Power Outage Report
In 2020, customers in Carroll County, MD went without power for an average of 1.8 hours, a total of 130K customer-hours (Maryland average 2.2 hours). That ranks 20th worst of 24 Maryland counties and 2327th 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 Carroll 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 | February 7, 2020 10:45 | February 9, 2020 07:45 | 1d 21h | 2,989 | 22K |
| 2 | October 9, 2020 13:15 | October 10, 2020 02:00 | 12h 45m | 2,039 | 1,171 |
| 3 | October 21, 2020 13:45 | October 22, 2020 19:15 | 1d 5h | 1,559 | 1,321 |
| 4 | June 22, 2020 08:00 | June 24, 2020 04:30 | 1d 20h | 1,517 | 4,823 |
| 5 | July 21, 2020 21:30 | July 23, 2020 03:30 | 1d 6h | 1,491 | 3,036 |
| 6 | December 16, 2020 20:00 | December 18, 2020 01:00 | 1d 5h | 1,398 | 5,382 |
| 7 | November 1, 2020 09:15 | November 4, 2020 19:15 | 3d 10h | 961 | 11K |
| 8 | April 9, 2020 16:15 | April 10, 2020 23:30 | 1d 7h | 945 | 2,598 |
| 9 | September 13, 2020 18:15 | September 14, 2020 14:45 | 20h 30m | 918 | 365 |
| 10 | February 16, 2020 13:15 | February 16, 2020 21:45 | 8h 30m | 784 | 2,012 |
Outage episodes by size in 2020: 88 reached 100+ customers, 6 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 Carroll 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 |
|---|---|---|---|---|---|
| The Potomac Edison Company | 2020 | 2.4 hrs | 1.00 | 2.3 hrs | 0.99 |
| 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 ÷ 71,073 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. Carroll County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Carroll 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/carroll-county