County annual report · FIPS 23025
2023 Somerset County, ME Power Outage Report
In 2023, customers in Somerset County, ME went without power for an average of 107.3 hours, a total of 2.1M customer-hours (Maine average 38.9 hours). That ranks 1st worst of 16 Maine counties and 26th of 2,977 nationally.
Compared with ME, the US and 2022
Coverage line is EAGLE-I's share of Maine customers tracked each year.
Biggest outages in Somerset 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 18, 2023 12:15 | December 24, 2023 23:15 | 6d 11h | 27,638 | 1.7M |
| 2 | September 16, 2023 13:00 | September 17, 2023 19:15 | 1d 6h | 7,150 | 163K |
| 3 | August 13, 2023 20:00 | August 14, 2023 03:30 | 7h 30m | 2,982 | 7,304 |
| 4 | June 18, 2023 05:45 | June 18, 2023 10:00 | 4h 15m | 2,805 | 4,672 |
| 5 | December 4, 2023 03:00 | December 5, 2023 23:45 | 1d 20h | 2,683 | 24K |
| 6 | February 3, 2023 22:45 | February 5, 2023 03:00 | 1d 4h | 2,670 | 11K |
| 7 | September 17, 2023 20:15 | September 18, 2023 23:30 | 1d 3h | 2,626 | 13K |
| 8 | June 18, 2023 12:30 | June 18, 2023 18:15 | 5h 45m | 2,456 | 1,859 |
| 9 | December 29, 2023 20:45 | December 30, 2023 22:30 | 1d 1h | 2,379 | 15K |
| 10 | July 8, 2023 10:45 | July 8, 2023 22:15 | 11h 30m | 2,200 | 6,112 |
Outage episodes by size in 2023: 94 reached 100+ customers, 28 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 Somerset 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 |
|---|---|---|---|---|---|
| Central Maine Power Co | 2023 | 27.6 hrs | 3.01 | 3.2 hrs | 1.82 |
| Town of Madison - (ME) | - | - | - | - | - |
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 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,524 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. Somerset County has data for 2017–2025.
Cite this report
MassOutage (massoutage.com), Somerset County, ME 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/maine/somerset-county