County annual report · FIPS 10005
2015 Sussex County, DE Power Outage Report
In 2015, customers in Sussex County, DE went without power for an average of 1.7 hours, a total of 367K customer-hours (Delaware average 3.1 hours). That ranks 2nd worst of 3 Delaware counties and 1384th of 2,484 nationally.
Compared with DE, the US
Coverage line is EAGLE-I's share of Delaware customers tracked each year.
Biggest outages in Sussex County, 2015
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 22, 2015 14:30 | February 22, 2015 19:00 | 4h 30m | 22,468 | 35K |
| 2 | October 1, 2015 08:45 | October 5, 2015 09:00 | 4d | 7,586 | 60K |
| 3 | January 28, 2015 11:45 | January 29, 2015 02:00 | 14h 15m | 7,502 | 43K |
| 4 | March 15, 2015 14:30 | March 15, 2015 18:30 | 4h | 6,358 | 14K |
| 5 | April 22, 2015 11:30 | April 22, 2015 17:15 | 5h 45m | 4,422 | 5,543 |
| 6 | February 15, 2015 02:00 | February 17, 2015 03:30 | 2d 1h | 4,188 | 27K |
| 7 | May 7, 2015 11:45 | May 7, 2015 20:15 | 8h 30m | 4,074 | 1,056 |
| 8 | August 13, 2015 13:30 | August 14, 2015 07:30 | 18h | 3,583 | 2,462 |
| 9 | October 22, 2015 12:45 | October 23, 2015 03:45 | 15h | 3,494 | 4,279 |
| 10 | December 12, 2015 03:30 | December 12, 2015 04:45 | 1h 15m | 3,462 | 4,328 |
Outage episodes by size in 2015: 137 reached 100+ customers, 43 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 2015, 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 | 2015 | 3.5 hrs | 1.42 | 1.9 hrs | 1.22 |
| Delaware Electric Cooperative | 2015 | 2.0 hrs | 1.81 | 1.8 hrs | 1.53 |
| 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 2015; 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, 2015, 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/2015/delaware/sussex-county