County annual report · FIPS 23019
2025 Penobscot County, ME Power Outage Report
In 2025, customers in Penobscot County, ME went without power for an average of 8.7 hours, a total of 767K customer-hours (Maine average 6.3 hours). That ranks 7th worst of 16 Maine counties and 929th of 3,000 nationally.
Compared with ME, the US and 2024
Coverage line is EAGLE-I's share of Maine customers tracked each year.
Biggest outages in Penobscot County, 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 17:30 | December 23, 2025 00:30 | 3d 7h | 16,598 | 441K |
| 2 | December 8, 2025 14:30 | December 8, 2025 17:15 | 2h 45m | 8,709 | 2,472 |
| 3 | August 19, 2025 11:45 | August 19, 2025 15:15 | 3h 30m | 8,686 | 4,026 |
| 4 | August 26, 2025 09:30 | August 26, 2025 18:30 | 9h | 5,202 | 7,646 |
| 5 | April 20, 2025 09:15 | April 22, 2025 12:00 | 2d 2h | 5,036 | 47K |
| 6 | July 20, 2025 10:30 | July 20, 2025 17:00 | 6h 30m | 4,966 | 1,492 |
| 7 | January 2, 2025 20:15 | January 3, 2025 04:00 | 7h 45m | 4,761 | 18K |
| 8 | April 22, 2025 14:15 | April 23, 2025 01:00 | 10h 45m | 4,758 | 1,525 |
| 9 | March 24, 2025 23:00 | March 25, 2025 16:00 | 17h | 4,361 | 7,138 |
| 10 | May 23, 2025 09:45 | May 23, 2025 19:15 | 9h 30m | 3,927 | 5,670 |
Outage episodes by size in 2025: 179 reached 100+ customers, 52 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 Penobscot County 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 |
|---|---|---|---|---|---|
| Central Maine Power Co | 2024 | 31.6 hrs | 3.37 | 3.6 hrs | 1.83 |
| Versant Power | 2024 | 20.1 hrs | 4.38 | 8.0 hrs | 3.10 |
| Eastern Maine Electric Coop | 2024 | 18.1 hrs | 8.00 | 12.3 hrs | 5.98 |
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 Maine's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 88,128 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. Penobscot County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Penobscot County, ME 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/maine/penobscot-county