County annual report · FIPS 23025
2020 Somerset County, ME Power Outage Report
In 2020, customers in Somerset County, ME went without power for an average of 120.7 hours, a total of 2.4M customer-hours (Maine average 36.9 hours). That ranks 2nd worst of 16 Maine counties and 47th of 3,019 nationally.
Compared with ME, the US and 2019
Coverage line is EAGLE-I's share of Maine customers tracked each year.
Biggest outages in Somerset County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 9, 2020 21:00 | April 16, 2020 09:30 | 6d 12h | 23,402 | 1.3M |
| 2 | December 5, 2020 19:15 | December 10, 2020 23:45 | 5d 4h | 14,137 | 770K |
| 3 | September 30, 2020 10:15 | October 2, 2020 14:45 | 2d 4h | 8,942 | 79K |
| 4 | November 30, 2020 22:45 | December 2, 2020 15:30 | 1d 16h | 3,798 | 43K |
| 5 | May 26, 2020 12:45 | May 26, 2020 21:30 | 8h 45m | 3,498 | 7,891 |
| 6 | November 2, 2020 18:00 | November 3, 2020 16:30 | 22h 30m | 3,224 | 7,649 |
| 7 | October 10, 2020 21:45 | October 11, 2020 02:30 | 4h 45m | 2,413 | 7,011 |
| 8 | March 4, 2020 16:30 | March 5, 2020 04:00 | 11h 30m | 2,242 | 2,205 |
| 9 | February 27, 2020 12:45 | February 28, 2020 22:00 | 1d 9h | 2,227 | 13K |
| 10 | October 14, 2020 14:15 | October 14, 2020 17:00 | 2h 45m | 2,154 | 546 |
Outage episodes by size in 2020: 111 reached 100+ customers, 29 reached 1,000+ customers, 2 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 2020, 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 | 2020 | 29.6 hrs | 3.74 | 3.7 hrs | 2.04 |
| 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 96% of Maine's customers in 2020; 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, 2020, 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/2020/maine/somerset-county