County annual report · FIPS 24033
2020 Prince George's County, MD Power Outage Report
In 2020, customers in Prince George's County, MD went without power for an average of 1.9 hours, a total of 681K customer-hours (Maryland average 2.2 hours). That ranks 19th worst of 24 Maryland counties and 2276th 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 Prince George's 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 | July 6, 2020 06:00 | July 9, 2020 10:00 | 3d 4h | 14,859 | 94K |
| 2 | September 12, 2020 06:30 | September 13, 2020 00:15 | 17h 45m | 8,380 | 6,808 |
| 3 | July 17, 2020 11:45 | July 26, 2020 05:45 | 8d 18h | 8,218 | 87K |
| 4 | December 5, 2020 08:15 | December 6, 2020 03:15 | 19h | 5,564 | 17K |
| 5 | September 10, 2020 15:45 | September 12, 2020 04:30 | 1d 12h | 4,784 | 9,186 |
| 6 | August 28, 2020 11:30 | August 30, 2020 04:45 | 1d 17h | 4,361 | 18K |
| 7 | June 9, 2020 07:00 | June 13, 2020 01:30 | 3d 18h | 4,146 | 18K |
| 8 | September 3, 2020 11:45 | September 6, 2020 02:00 | 2d 14h | 3,816 | 16K |
| 9 | August 10, 2020 11:45 | August 11, 2020 09:15 | 21h 30m | 3,559 | 9,074 |
| 10 | February 7, 2020 10:45 | February 9, 2020 03:00 | 1d 16h | 3,355 | 9,522 |
Outage episodes by size in 2020: 183 reached 100+ customers, 57 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 Prince George's 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 |
| Potomac Electric Power Co | 2020 | 53 min | 0.54 | 46 min | 0.50 |
| 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 98% of Maryland's customers in 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 349,773 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. Prince George's County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Prince George's 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/prince-georges-county