County annual report · FIPS 10005
2017 Sussex County, DE Power Outage Report
In 2017, customers in Sussex County, DE went without power for an average of 1.4 hours, a total of 302K customer-hours (Delaware average 2.9 hours). That ranks 2nd worst of 3 Delaware counties and 1874th of 2,786 nationally.
Compared with DE, the US and 2016
Coverage line is EAGLE-I's share of Delaware customers tracked each year.
Biggest outages in Sussex 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 | August 30, 2017 08:45 | August 30, 2017 18:15 | 9h 30m | 16,283 | 32K |
| 2 | January 9, 2017 11:00 | January 10, 2017 07:15 | 20h 15m | 6,962 | 5,174 |
| 3 | July 13, 2017 19:15 | July 15, 2017 06:45 | 1d 11h | 4,108 | 7,543 |
| 4 | March 21, 2017 14:00 | March 21, 2017 18:45 | 4h 45m | 3,913 | 992 |
| 5 | July 19, 2017 14:30 | July 20, 2017 01:45 | 11h 15m | 3,861 | 2,124 |
| 6 | October 24, 2017 05:15 | October 24, 2017 20:00 | 14h 45m | 3,799 | 8,103 |
| 7 | July 29, 2017 02:30 | July 29, 2017 19:45 | 17h 15m | 3,786 | 7,560 |
| 8 | April 27, 2017 07:30 | April 27, 2017 17:15 | 9h 45m | 3,690 | 4,970 |
| 9 | June 19, 2017 20:45 | June 21, 2017 01:45 | 1d 5h | 3,655 | 16K |
| 10 | March 9, 2017 12:30 | March 9, 2017 21:00 | 8h 30m | 3,447 | 2,709 |
Outage episodes by size in 2017: 201 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 Sussex 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 |
|---|---|---|---|---|---|
| Delmarva Power | 2017 | 3.1 hrs | 1.19 | 86 min | 0.98 |
| Delaware Electric Cooperative | 2017 | 1.6 hrs | 1.43 | 1.6 hrs | 1.43 |
| 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 n/a of Delaware's customers in 2017; 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, 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/delaware/sussex-county