County annual report · FIPS 10003
2023 New Castle County, DE Power Outage Report
In 2023, customers in New Castle County, DE went without power for an average of 4.5 hours, a total of 851K customer-hours (Delaware average 2.3 hours). That ranks 1st worst of 3 Delaware counties and 1576th of 2,977 nationally.
Compared with DE, the US and 2022
Coverage line is EAGLE-I's share of Delaware customers tracked each year.
Biggest outages in New Castle County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 12, 2023 11:45 | December 13, 2023 10:15 | 22h 30m | 61,872 | 30K |
| 2 | August 6, 2023 12:15 | August 15, 2023 06:45 | 8d 18h | 23,275 | 357K |
| 3 | September 20, 2023 12:45 | September 26, 2023 01:45 | 5d 13h | 6,294 | 36K |
| 4 | June 25, 2023 06:15 | June 29, 2023 09:15 | 4d 3h | 5,264 | 38K |
| 5 | August 21, 2023 03:00 | August 25, 2023 06:00 | 4d 3h | 4,986 | 8,430 |
| 6 | June 5, 2023 08:30 | June 6, 2023 09:30 | 1d 1h | 3,367 | 3,667 |
| 7 | April 1, 2023 15:00 | April 3, 2023 09:00 | 1d 18h | 3,076 | 9,144 |
| 8 | April 28, 2023 13:15 | April 30, 2023 10:15 | 1d 21h | 2,476 | 10K |
| 9 | September 7, 2023 09:45 | September 11, 2023 08:15 | 3d 22h | 2,468 | 17K |
| 10 | October 1, 2023 20:45 | October 2, 2023 08:45 | 12h | 2,461 | 1,424 |
Outage episodes by size in 2023: 160 reached 100+ customers, 34 reached 1,000+ customers, 2 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 New Castle County reported on EIA Form 861 for 2023, 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 | 2023 | 2.1 hrs | 0.76 | 58 min | 0.60 |
| City of Newark - (DE) | 2023 | 31 min | 0.28 | 31 min | 0.28 |
| New Castle Municipal Serv Comm | 2018 | 39 min | 1.20 | 39 min | 1.20 |
| Town of Smyrna - (DE) | - | - | - | - | - |
| Town of Middletown - (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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 191,056 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. New Castle County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), New Castle County, DE annual power outage report, 2023, 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/2023/delaware/new-castle-county