County annual report · FIPS 09170
2025 South Central Connecticut Planning Region, CT Power Outage Report
In 2025, customers in South Central Connecticut Planning Region, CT went without power for an average of - hours, a total of 322K customer-hours.
No loaded years to plot yet.
Coverage line is EAGLE-I's share of Connecticut customers tracked each year.
Biggest outages in South Central Connecticut Planning Region, 2025
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 19, 2025 13:30 | December 22, 2025 04:45 | 2d 15h | 9,281 | 81K |
| 2 | July 3, 2025 16:45 | July 6, 2025 07:45 | 2d 15h | 9,102 | 83K |
| 3 | October 12, 2025 14:15 | October 14, 2025 02:30 | 1d 12h | 5,375 | 16K |
| 4 | June 27, 2025 10:15 | June 28, 2025 00:45 | 14h 30m | 4,424 | 3,444 |
| 5 | October 30, 2025 17:00 | November 2, 2025 02:15 | 2d 9h | 4,001 | 17K |
| 6 | June 24, 2025 19:45 | June 27, 2025 01:00 | 2d 5h | 3,173 | 11K |
| 7 | June 10, 2025 20:00 | June 11, 2025 14:30 | 18h 30m | 2,511 | 4,306 |
| 8 | December 29, 2025 12:45 | December 30, 2025 16:45 | 1d 4h | 2,472 | 6,208 |
| 9 | August 17, 2025 06:45 | August 18, 2025 05:15 | 22h 30m | 2,335 | 5,354 |
| 10 | September 25, 2025 22:15 | September 26, 2025 07:45 | 9h 30m | 2,234 | 821 |
Outage episodes by size in 2025: 98 reached 100+ customers, 26 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 South Central Connecticut Planning Region reported on EIA Form 861 for 2025, 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 |
|---|---|---|---|---|---|
| Connecticut Light & Power Co | 2024 | 2.6 hrs | 0.89 | 77 min | 0.65 |
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 Connecticut's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ modeled 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. South Central Connecticut Planning Region has data for 2025.
Cite this report
MassOutage (massoutage.com), South Central Connecticut Planning Region, CT annual power outage report, 2025, 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/2025/connecticut/south-central-connecticut-planning-region