State · EIA Form 861 · DE
Delaware
According to the U.S. Energy Information Administration's EIA Form 861, SAIDI and SAIFI for Delaware utilities come from the federal annual survey. 4 utilities report reliability metrics; figures are customer-weighted state averages, not a guarantee for any single address.
Signature read: short chronic outage minutes relative to the 51-state Form 861 cohort (<=156 min tercile cut).
EIA Form 861 · Continuity Brief
Delaware
EIA Form 861 Continuity Brief · August 2026 · IEEE 1366 SAIDI/SAIFI minutes, not a storm forecast.
Delaware sits in the lower-third SAIDI band at 108.2 minutes across 4 reporting utilities (City of Milford - (DE) lowest at 20.8), under the live national mean of 341.
Named SAIDI peers (in-state best + nearest-state averages)
State SAIDI neighbourhood (minutes / customer-year)
- Delaware 108.2
- New Jersey 108.3
- Arizona 106.9
- Iowa 105.2
- Rhode Island 104.6
- Colorado 99.4
Lower is fewer interruption minutes. Neighbours are nearest other-state averages in this corpus.
Delaware vs all states by EIA Form 861 utility headcount
Where this state's reporting utility count sits among every state in the Form 861 file (coverage density, not reliability quality)
4 Top 90% more reporting utilities than 10% of 51 states
States, banded by electric utilities reporting on EIA Form 861
Each bar is a band; taller bars hold more states. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source EIA Form 861 · 2026-08-30
Utilities Ranked by Reliability · Delaware short-outage cohort
All 4 electric utilities in Delaware with reliability data, sorted by 2023 SAIDI; statewide average sits in the lower-third Form 861 band.
Lowest-SAIDI utilities in Delaware
Fewest outage minutes · live table sort
Top 4 Delaware utilities by fewest outage minutes. Lower SAIDI is better - not a quality score beyond interruption duration.
Lowest-SAIDI utilities in Delaware
| # | Utility | Type | SAIDI 2023 | SAIFI 2023 | Customers |
|---|---|---|---|---|---|
| 1 | City of Milford - (DE) | Municipal | 20.8 | 0.20 | 8,433 |
| 2 | City of Newark - (DE) | Municipal | 30.9 | 0.28 | 13,377 |
| 3 | Delaware Electric Cooperative | Cooperative | 83.1 | 1.29 | 116,535 |
| 4 | Delmarva Power | IOU | 122.0 | 0.71 | 299,234 |
Read with this Delaware roster · short-outage band
- Lowest published SAIDI in Delaware: City of Milford - (DE) (20.8 min)
- Highest published SAIDI in Delaware: Delmarva Power (122.0 min)
- Ownership mix here: Municipal leads (2 of 4 utilities) · national type means
- Nearest avg SAIDI: New Jersey (108.3 min)
- Nearest avg SAIDI: Arizona (106.9 min)
- Nearest avg SAIDI: Iowa (105.2 min)
- Nearest avg SAIDI: Rhode Island (104.6 min)
- Nearest avg SAIDI: Colorado (99.4 min)
Source: U.S. Energy Information Administration (EIA) Form 861 Annual Electric Power Industry Report, reliability · 2020-2023 State averages are rebuilt from utility filings in this portal DB; corpus ranks use headcount and customer sums.