County annual report · FIPS 10005
2019 Sussex County, DE Power Outage Report
In 2019, customers in Sussex County, DE went without power for an average of 1.2 hours, a total of 268K customer-hours (Delaware average 1.9 hours). That ranks 3rd worst of 3 Delaware counties and 2411th of 2,945 nationally.
Compared with DE, the US and 2018
Coverage line is EAGLE-I's share of Delaware customers tracked each year.
Biggest outages in Sussex County, 2019
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 17, 2019 00:15 | May 17, 2019 06:30 | 6h 15m | 8,476 | 8,400 |
| 2 | April 15, 2019 07:30 | April 16, 2019 21:30 | 1d 14h | 7,381 | 50K |
| 3 | July 22, 2019 21:30 | July 24, 2019 01:15 | 1d 3h | 5,122 | 14K |
| 4 | November 1, 2019 02:45 | November 1, 2019 22:30 | 19h 45m | 3,196 | 7,350 |
| 5 | August 7, 2019 15:30 | August 8, 2019 05:45 | 14h 15m | 3,165 | 3,305 |
| 6 | June 13, 2019 11:15 | June 14, 2019 00:30 | 13h 15m | 3,057 | 2,890 |
| 7 | July 16, 2019 23:00 | July 17, 2019 05:00 | 6h | 3,053 | 14K |
| 8 | March 25, 2019 13:00 | March 25, 2019 13:15 | 15m | 2,543 | 636 |
| 9 | June 19, 2019 20:00 | June 20, 2019 06:00 | 10h | 2,538 | 4,469 |
| 10 | November 18, 2019 13:30 | November 18, 2019 23:45 | 10h 15m | 2,351 | 3,679 |
Outage episodes by size in 2019: 167 reached 100+ customers, 31 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 Sussex County reported on EIA Form 861 for 2019, 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2018 | 2.8 hrs | 1.12 | 86 min | 0.91 |
| Delaware Electric Cooperative | 2018 | 2.0 hrs | 1.60 | 84 min | 1.36 |
| City of Milford - (DE) | - | - | - | - | - |
| City of Lewes - (DE) | - | - | - | - | - |
| City of Seaford- (DE) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 86% of Delaware's customers in 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 218,986 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. Sussex County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sussex County, DE annual power outage report, 2019, 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/2019/delaware/sussex-county