County annual report · FIPS 09160
2025 Northwest Hills Planning Region, CT Power Outage Report
In 2025, customers in Northwest Hills Planning Region, CT went without power for an average of - hours, a total of 219K customer-hours.
No loaded years to plot yet.
Coverage line is EAGLE-I's share of Connecticut customers tracked each year.
Biggest outages in Northwest Hills 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 | October 12, 2025 22:15 | October 15, 2025 04:45 | 2d 6h | 3,103 | 38K |
| 2 | September 6, 2025 17:45 | September 8, 2025 21:45 | 2d 4h | 2,428 | 22K |
| 3 | December 19, 2025 11:15 | December 22, 2025 03:15 | 2d 16h | 2,402 | 17K |
| 4 | June 20, 2025 10:30 | June 22, 2025 04:00 | 1d 17h | 1,966 | 13K |
| 5 | July 8, 2025 12:15 | July 11, 2025 02:15 | 2d 14h | 1,621 | 9,080 |
| 6 | November 5, 2025 13:30 | November 7, 2025 01:15 | 1d 11h | 1,601 | 4,048 |
| 7 | August 25, 2025 11:45 | August 25, 2025 19:45 | 8h | 1,570 | 830 |
| 8 | October 30, 2025 05:00 | November 3, 2025 01:15 | 3d 20h | 1,450 | 23K |
| 9 | July 22, 2025 19:30 | July 23, 2025 08:15 | 12h 45m | 1,244 | 601 |
| 10 | June 25, 2025 20:30 | June 26, 2025 03:15 | 6h 45m | 1,113 | 1,133 |
Outage episodes by size in 2025: 73 reached 100+ customers, 11 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 Northwest Hills 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. Northwest Hills Planning Region has data for 2025.
Cite this report
MassOutage (massoutage.com), Northwest Hills 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/northwest-hills-planning-region