County annual report · FIPS 23013
2021 Knox County, ME Power Outage Report
In 2021, customers in Knox County, ME went without power for an average of 8.8 hours, a total of 135K customer-hours (Maine average 6.4 hours). That ranks 8th worst of 16 Maine counties and 868th of 2,974 nationally.
Compared with ME, the US and 2020
Coverage line is EAGLE-I's share of Maine customers tracked each year.
Biggest outages in Knox County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 2, 2021 01:45 | March 3, 2021 22:45 | 1d 21h | 4,580 | 26K |
| 2 | October 26, 2021 21:30 | October 28, 2021 03:30 | 1d 6h | 4,066 | 14K |
| 3 | July 21, 2021 20:45 | July 22, 2021 04:45 | 8h | 3,272 | 7,370 |
| 4 | April 1, 2021 06:30 | April 1, 2021 14:15 | 7h 45m | 3,252 | 876 |
| 5 | December 21, 2021 11:15 | December 21, 2021 14:45 | 3h 30m | 2,501 | 2,242 |
| 6 | September 25, 2021 20:30 | September 26, 2021 01:45 | 5h 15m | 2,494 | 2,417 |
| 7 | July 28, 2021 16:30 | July 28, 2021 21:00 | 4h 30m | 2,202 | 2,758 |
| 8 | August 29, 2021 09:30 | August 29, 2021 16:45 | 7h 15m | 1,803 | 7,722 |
| 9 | October 25, 2021 23:45 | October 26, 2021 00:30 | 45m | 1,628 | 1,221 |
| 10 | July 3, 2021 11:45 | July 3, 2021 16:15 | 4h 30m | 1,606 | 5,902 |
Outage episodes by size in 2021: 63 reached 100+ customers, 17 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 Knox County reported on EIA Form 861 for 2021, 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 | 2021 | 5.5 hrs | 2.48 | 3.7 hrs | 2.04 |
| Fox Islands Electric Coop, Inc | - | - | - | - | - |
| Matinicus Plantation Elec Co | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 15,343 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. Knox County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Knox County, ME annual power outage report, 2021, 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/2021/maine/knox-county